Material price and basic knowledge of cemented carbide rods [CNC Carbide Inserts]
Cemented carbide is the most widely used type of high-speed machining (HSM) tool material. This type of material is produced by powder metallurgy. It consists of hard carbide (usually tungsten carbide WC) particles and a softer metal bond composition.At present, there are hundreds of WC-based cemented carbides with different compositions. Most of them use cobalt (Co) as a binder. Nickel (Ni) and chromium (Cr) are also commonly used binder elements, and other elements can be added. Some alloying elements.
(1) Simple cemented carbide grades
Such grades used for metal cutting usually contain 3%-12% cobalt (weight ratio).The size range of tungsten carbide grains is usually between 1-8m.Like other grades, reducing the particle size of tungsten carbide can increase its hardness and transverse rupture strength (TRS), but it will reduce its toughness..The hardness of simple grades is usually 89 to 93.Between 5HRA; the transverse rupture strength is usually 1.2-2.Between 4MPa (175-350ksi).The powder of this type may contain a large amount of recycled raw materials.
Simple grades can be classified into C1-C4 in the C grade system, and can be classified according to the K, N, S and H grade series in the ISO grade system.Simple grades with intermediate characteristics can be classified as general grades (such as C2 or K20), which can be used for turning, milling, planing and wok processing; grades with smaller grain size or lower cobalt content and higher hardness can be used Classify as finishing grades (such as C4 or K01); grades with larger grain size or higher cobalt content and better toughness can be classified as roughing grades (such as C1 or K30).
Tools made with simplex grades can be used for cutting cast iron, 200 and 300 series stainless steel, aluminum and other non-ferrous metals, high temperature alloys and hardened steel.Such grades can also be used in non-metal cutting fields (such as rock and geological drilling tools), and the grain size of these grades is in the range of 1.5-10m (or larger), cobalt content is 6%-16%.Another non-metal cutting application of simple cemented carbide grades is to make dies and punches. These grades usually have a medium-sized grain size with a cobalt content of 16% to 30%..
(2) Microcrystalline cemented carbide grades
Such grades usually contain 6% to 15% cobalt.During liquid phase sintering, the added vanadium carbide and/or chromium carbide can control the growth of grains, thereby obtaining a fine grain structure with a grain size of less than 1m.This fine grain grade has very high hardness and 3.Transverse breaking strength above 45MPa (500ksi).The combination of high strength and sufficient toughness enables such brands of tools to adopt a larger positive rake angle, which can reduce cutting force and produce thinner chips by cutting rather than pushing metal materials.
Through strict quality identification of various raw materials in the production of grade cemented carbide powder, and strict control of sintering process conditions to prevent the formation of abnormal large grains in the microstructure of the material, appropriate Material properties.In order to keep the grain size small and uniform, the recycled recycled powder can only be used when the raw materials and recycling process can be fully controlled, and extensive quality inspections are implemented..
Microcrystalline grades can be classified according to the M grade series in the ISO grade system. In addition, the other classification methods in the C grade system and the ISO grade system are the same as the simple grades..Microcrystalline grades can be used to manufacture tools for cutting softer workpiece materials, because the surface of this tool can be processed very smoothly and can maintain extremely sharp cutting edges.
Microcrystalline tools can also be used to process nickel-based super alloys, because this tool can withstand cutting temperatures as high as 1200C.For the processing of high-temperature alloys and other special materials, the use of microcrystalline brand tools and ruthenium-containing pure brand tools can simultaneously improve its wear resistance, deformation resistance and toughness.Microcrystalline grades are trapped and combined to manufacture rotating tools (such as drills) that generate shear stress.There is a drill bit made of composite grades of cemented carbide. The cobalt content in the material is different in a specific part of the same drill bits, so that the hardness and toughness of the drill bit are optimized according to the processing needs..
(3) Alloy type cemented carbide grades
This type of grade is mainly used for cutting steel parts, and its cobalt content is usually 5% to 10%, and the grain size range is 0.8-2m .By adding 4% to 25% of titanium carbide (TiC), the tendency of tungsten carbide (WC) to diffuse to the surface of steel chips can be reduced.By adding no more than 25% of tantalum carbide (TaC) and nickel carbide (NbC), the strength, crater resistance and thermal shock resistance of the tool can be improved.Adding such cubic carbides can also improve the red hardness of the tool, and help avoid thermal deformation of the tool in heavy cutting or other machining where the cutting edge will generate high temperatures..In addition, titanium carbide can provide nucleation sites during the sintering process to improve the uniformity of cubic carbide distribution in the workpiece.
Generally speaking, the hardness range of alloy type cemented carbide grades is 91-94HRA, and the transverse fracture strength is 1-2KPa (150-300ksi).Compared with simple grades, alloy grades have poorer wear resistance and lower strength, but they have better bond wear resistance..Alloy type grades can be classified into C5-C8 in the C grade system, and can be classified according to the P and M grade series in the ISO grade system.Alloy grades with intermediate characteristics can be classified as general grades (such as C6 or P30), which can be used for turning, tapping, planing and milling.The grades with the highest hardness can be classified as finishing grades (such as C8 and P01) for finishing turning and key cutting.These grades usually have smaller grain size and lower cobalt content to obtain the required hardness and wear resistance.However, similar material properties can be obtained by adding more cubic carbides.The toughest grades can be classified as roughing grades (such as C5 or P50).These grades usually have a medium particle size and a high cobalt content, and the addition of cubic carbides is also small, in order to obtain the required toughness by suppressing crack propagation.In intermittent turning, the cutting performance can be further improved by using the cobalt-rich grades with higher cobalt content on the tool surface..
Alloy grades with lower tungsten carbide rods content are used for cutting stainless steel and malleable cast iron, but can also be used for processing non-ferrous metals (such as nickel-based super alloys).The grain size of these grades is usually less than 1m, and the cobalt content is 8%-12%.Grades with higher hardness (such as M10) can be used for turning and machining malleable cast iron; grades with better toughness (such as M40) can be used for milling and planing steel, or for turning stainless steel or super alloys.
Alloy-type cemented carbide grades can also be used for non-metal cutting purposes, mainly for the manufacture of wear-resistant parts.The grain size of these grades is usually 1.2-2m, cobalt content is 7%-10%.In the production of these grades, a large proportion of recycled raw materials are usually added to obtain higher cost-effectiveness in the application of wear-resistant parts.Wear-resistant parts need to have high corrosion resistance and high hardness. When producing such grades, these properties can be obtained by adding nickel and chromium carbide.
In order to meet the dual requirements of tool manufacturers in terms of technology and economy, cemented carbide powder is a key element.The powder material designed for the processing equipment and process parameters of the tool manufacturer can ensure the performance of the finished workpiece and lead to the appearance of hundreds of cemented carbide grades.The recyclable characteristics of cemented carbide materials and the ability to directly cooperate with powder suppliers enable tool manufacturers to effectively control their product quality and material costs.
(1) Simple cemented carbide grades
Such grades used for metal cutting usually contain 3%-12% cobalt (weight ratio).The size range of tungsten carbide grains is usually between 1-8m.Like other grades, reducing the particle size of tungsten carbide can increase its hardness and transverse rupture strength (TRS), but it will reduce its toughness..The hardness of simple grades is usually 89 to 93.Between 5HRA; the transverse rupture strength is usually 1.2-2.Between 4MPa (175-350ksi).The powder of this type may contain a large amount of recycled raw materials.
Simple grades can be classified into C1-C4 in the C grade system, and can be classified according to the K, N, S and H grade series in the ISO grade system.Simple grades with intermediate characteristics can be classified as general grades (such as C2 or K20), which can be used for turning, milling, planing and wok processing; grades with smaller grain size or lower cobalt content and higher hardness can be used Classify as finishing grades (such as C4 or K01); grades with larger grain size or higher cobalt content and better toughness can be classified as roughing grades (such as C1 or K30).
Tools made with simplex grades can be used for cutting cast iron, 200 and 300 series stainless steel, aluminum and other non-ferrous metals, high temperature alloys and hardened steel.Such grades can also be used in non-metal cutting fields (such as rock and geological drilling tools), and the grain size of these grades is in the range of 1.5-10m (or larger), cobalt content is 6%-16%.Another non-metal cutting application of simple cemented carbide grades is to make dies and punches. These grades usually have a medium-sized grain size with a cobalt content of 16% to 30%..
(2) Microcrystalline cemented carbide grades
Such grades usually contain 6% to 15% cobalt.During liquid phase sintering, the added vanadium carbide and/or chromium carbide can control the growth of grains, thereby obtaining a fine grain structure with a grain size of less than 1m.This fine grain grade has very high hardness and 3.Transverse breaking strength above 45MPa (500ksi).The combination of high strength and sufficient toughness enables such brands of tools to adopt a larger positive rake angle, which can reduce cutting force and produce thinner chips by cutting rather than pushing metal materials.
Through strict quality identification of various raw materials in the production of grade cemented carbide powder, and strict control of sintering process conditions to prevent the formation of abnormal large grains in the microstructure of the material, appropriate Material properties.In order to keep the grain size small and uniform, the recycled recycled powder can only be used when the raw materials and recycling process can be fully controlled, and extensive quality inspections are implemented..
Microcrystalline grades can be classified according to the M grade series in the ISO grade system. In addition, the other classification methods in the C grade system and the ISO grade system are the same as the simple grades..Microcrystalline grades can be used to manufacture tools for cutting softer workpiece materials, because the surface of this tool can be processed very smoothly and can maintain extremely sharp cutting edges.
Microcrystalline tools can also be used to process nickel-based super alloys, because this tool can withstand cutting temperatures as high as 1200C.For the processing of high-temperature alloys and other special materials, the use of microcrystalline brand tools and ruthenium-containing pure brand tools can simultaneously improve its wear resistance, deformation resistance and toughness.Microcrystalline grades are trapped and combined to manufacture rotating tools (such as drills) that generate shear stress.There is a drill bit made of composite grades of cemented carbide. The cobalt content in the material is different in a specific part of the same drill bits, so that the hardness and toughness of the drill bit are optimized according to the processing needs..
(3) Alloy type cemented carbide grades
This type of grade is mainly used for cutting steel parts, and its cobalt content is usually 5% to 10%, and the grain size range is 0.8-2m .By adding 4% to 25% of titanium carbide (TiC), the tendency of tungsten carbide (WC) to diffuse to the surface of steel chips can be reduced.By adding no more than 25% of tantalum carbide (TaC) and nickel carbide (NbC), the strength, crater resistance and thermal shock resistance of the tool can be improved.Adding such cubic carbides can also improve the red hardness of the tool, and help avoid thermal deformation of the tool in heavy cutting or other machining where the cutting edge will generate high temperatures..In addition, titanium carbide can provide nucleation sites during the sintering process to improve the uniformity of cubic carbide distribution in the workpiece.
Generally speaking, the hardness range of alloy type cemented carbide grades is 91-94HRA, and the transverse fracture strength is 1-2KPa (150-300ksi).Compared with simple grades, alloy grades have poorer wear resistance and lower strength, but they have better bond wear resistance..Alloy type grades can be classified into C5-C8 in the C grade system, and can be classified according to the P and M grade series in the ISO grade system.Alloy grades with intermediate characteristics can be classified as general grades (such as C6 or P30), which can be used for turning, tapping, planing and milling.The grades with the highest hardness can be classified as finishing grades (such as C8 and P01) for finishing turning and key cutting.These grades usually have smaller grain size and lower cobalt content to obtain the required hardness and wear resistance.However, similar material properties can be obtained by adding more cubic carbides.The toughest grades can be classified as roughing grades (such as C5 or P50).These grades usually have a medium particle size and a high cobalt content, and the addition of cubic carbides is also small, in order to obtain the required toughness by suppressing crack propagation.In intermittent turning, the cutting performance can be further improved by using the cobalt-rich grades with higher cobalt content on the tool surface..
Alloy grades with lower tungsten carbide rods content are used for cutting stainless steel and malleable cast iron, but can also be used for processing non-ferrous metals (such as nickel-based super alloys).The grain size of these grades is usually less than 1m, and the cobalt content is 8%-12%.Grades with higher hardness (such as M10) can be used for turning and machining malleable cast iron; grades with better toughness (such as M40) can be used for milling and planing steel, or for turning stainless steel or super alloys.
Alloy-type cemented carbide grades can also be used for non-metal cutting purposes, mainly for the manufacture of wear-resistant parts.The grain size of these grades is usually 1.2-2m, cobalt content is 7%-10%.In the production of these grades, a large proportion of recycled raw materials are usually added to obtain higher cost-effectiveness in the application of wear-resistant parts.Wear-resistant parts need to have high corrosion resistance and high hardness. When producing such grades, these properties can be obtained by adding nickel and chromium carbide.
In order to meet the dual requirements of tool manufacturers in terms of technology and economy, cemented carbide powder is a key element.The powder material designed for the processing equipment and process parameters of the tool manufacturer can ensure the performance of the finished workpiece and lead to the appearance of hundreds of cemented carbide grades.The recyclable characteristics of cemented carbide materials and the ability to directly cooperate with powder suppliers enable tool manufacturers to effectively control their product quality and material costs.
Can copper tungsten alloy rods be used as touch solder pins [CNC Carbide Inserts]
What touch solder pin?Are you talking about resistance spot welding electrodes?It is best to use chromium-zirconium-copper, a high-temperature resistant alloy, which does not soften at high temperatures and is resistant to wear
Tungsten copper alloy is an alloy composed of tungsten and copper.The copper content of common alloys is 10%-50%.The alloy is prepared by powder metallurgy, which has good electrical and thermal conductivity, good high temperature strength and certain plasticity.At very high temperatures, such as above 3000C, the copper in the alloy is liquefied and evaporated, absorbing a large amount of heat, and reducing the surface temperature of the material.So this kind of material is also called metal sweating material.
Tungsten copper composite material is a two-phase structure pseudo alloy mainly composed of tungsten and copper elements, and is a metal matrix composite material.Because the physical properties of copper and tungsten carbide rods are quite different, they cannot be produced by the fusion casting method, and are generally produced by powder alloy technology..
Tungsten copper alloy has a wide range of uses, most of which are used in aerospace, aviation, electronics, electric power, metallurgy, machinery, sports equipment and other industries.Secondly, it is also used to manufacture high-temperature components such as the contacts of high-voltage electrical switches that are resistant to arc ablation, rocket nozzle throat linings, and tail rudders, as well as electrodes for electrical machining, high-temperature molds, and other applications that require electrical and thermal conductivity and high-temperature use. occasion.
Tungsten copper alloy is an alloy composed of tungsten and copper.The copper content of common alloys is 10%-50%.The alloy is prepared by powder metallurgy, which has good electrical and thermal conductivity, good high temperature strength and certain plasticity.At very high temperatures, such as above 3000C, the copper in the alloy is liquefied and evaporated, absorbing a large amount of heat, and reducing the surface temperature of the material.So this kind of material is also called metal sweating material.
Tungsten copper composite material is a two-phase structure pseudo alloy mainly composed of tungsten and copper elements, and is a metal matrix composite material.Because the physical properties of copper and tungsten carbide rods are quite different, they cannot be produced by the fusion casting method, and are generally produced by powder alloy technology..
Tungsten copper alloy has a wide range of uses, most of which are used in aerospace, aviation, electronics, electric power, metallurgy, machinery, sports equipment and other industries.Secondly, it is also used to manufacture high-temperature components such as the contacts of high-voltage electrical switches that are resistant to arc ablation, rocket nozzle throat linings, and tail rudders, as well as electrodes for electrical machining, high-temperature molds, and other applications that require electrical and thermal conductivity and high-temperature use. occasion.
Characteristics and uses of cemented carbide single hole round bars [CNC Carbide Inserts]
Characteristics and uses of cemented carbide single hole round bars
Carbide round bar, also known as cemented carbide bar, is a kind of hard alloy (WC) as the main raw material, plus other precious metals and paste phase by powder metallurgy method for pressing and sintering. Intensive alloy materials are widely used in the field of national production and processing, such as tungsten steel drill bits.
Cemented carbide round bar production process
Carbide round bar material performance characteristics
1. High-quality ultra-fine tungsten carbide and imported cobalt powder are taper drill bits used as raw materials.
2, using the world's advanced low-pressure sintering preparation technology for standardized production.
3. It has high strength and high hardness.
4, has excellent red hardness, good wear resistance, high modulus of elasticity, high bending strength, good chemical stability (acid, alkali, high temperature oxidation), good impact toughness, low expansion coefficient, thermal conductivity, electrical conductivity and Similar characteristics of iron and its alloys.
5, high-tech precision advanced equipment: Germany imported 10MPa low-pressure sintering furnace sintering.
6, a unique new process: vacuum high temperature and high pressure sintering. The product is pressure sintered in the final stage, which greatly reduces the porosity, improves the compactness, dth drill bits and greatly improves the mechanical properties of the product.
7, product features: material grades, can be applied to different needs of use; complete specifications, accurate blank size (reduced processing, improve production efficiency).
8, the service is thoughtful and quick response: the order is fast, and the delivery is fast and punctual.
Use of carbide rods
Carbide round bar has a wide range of applications, suitable for making tungsten steel drill bits, micro drill bits in the PCB industry, electrode rods in the optoelectronic communication industry, carbide drill bits in the machining industry, drill shanks, top tips, push rods, wear-resistant precision parts, It is the preferred high-quality material for the whole CNC milling cutter and the hole-cutting tool.
Carbide round bar, also known as cemented carbide bar, is a kind of hard alloy (WC) as the main raw material, plus other precious metals and paste phase by powder metallurgy method for pressing and sintering. Intensive alloy materials are widely used in the field of national production and processing, such as tungsten steel drill bits.
Cemented carbide round bar production process
Carbide round bar material performance characteristics
1. High-quality ultra-fine tungsten carbide and imported cobalt powder are taper drill bits used as raw materials.
2, using the world's advanced low-pressure sintering preparation technology for standardized production.
3. It has high strength and high hardness.
4, has excellent red hardness, good wear resistance, high modulus of elasticity, high bending strength, good chemical stability (acid, alkali, high temperature oxidation), good impact toughness, low expansion coefficient, thermal conductivity, electrical conductivity and Similar characteristics of iron and its alloys.
5, high-tech precision advanced equipment: Germany imported 10MPa low-pressure sintering furnace sintering.
6, a unique new process: vacuum high temperature and high pressure sintering. The product is pressure sintered in the final stage, which greatly reduces the porosity, improves the compactness, dth drill bits and greatly improves the mechanical properties of the product.
7, product features: material grades, can be applied to different needs of use; complete specifications, accurate blank size (reduced processing, improve production efficiency).
8, the service is thoughtful and quick response: the order is fast, and the delivery is fast and punctual.
Use of carbide rods
Carbide round bar has a wide range of applications, suitable for making tungsten steel drill bits, micro drill bits in the PCB industry, electrode rods in the optoelectronic communication industry, carbide drill bits in the machining industry, drill shanks, top tips, push rods, wear-resistant precision parts, It is the preferred high-quality material for the whole CNC milling cutter and the hole-cutting tool.
Hunan tungsten mud use, tungsten alloy weight bar [CNC Carbide Inserts]
Jingzuan new tungsten alloy material Hebei tungsten mud use, plate rolling tungsten plate rolling can be divided into hot rolling, warm rolling and cold rolling.Because of the large deformation resistance of tungsten, ordinary rolls cannot completely meet the requirements of tungsten sheet rolling. Rolls made of special raw materials should be used..During rolling, the rolls should be preheated. According to different rolling conditions, the preheating temperature 100-350.It can be processed only when the relative density of the blank (the ratio of the practical density to the theoretical density) is greater than 90%, and the processing function is excellent when the blank density is 92-94%.
The diameter of the filament can be measured by the gravimetric method or the vacuum standard current method.In the process of drawing, as the diameter decreases, the deformation resistance increases (such as diameter 0.1.The breaking strength of 3 mm tungsten wire can be as high as 350 kgf/mm, and its plasticity is correspondingly reduced.In order to improve the reprocessing performance, it is generally necessary to perform stress relief intermediate annealing.In addition, electrolytic corrosion can be used to process the wire to a diameter less than 0.01mm filament.
Jingzuan new tungsten alloy material tungsten alloy weight rod, tungsten alloy fishing sinker for sea fishing is made of tungsten alloy, which has the characteristics of large density, small size, high hardness, corrosion resistance, wear resistance and long service life, and it is non-toxic and pollution-free. It is the choice of fish sinkers for sea fishing.Sea fishing is completely different from river fishing. Sea fishing is more difficult. You must have a set of self-contained sea fishing equipment, so not all fishing sinkers can be used for sea fishing..It has good corrosion resistance, is non-toxic and environmentally friendly, will not cause harm to humans and fish, and will not pollute the environment..The tungsten alloy fishing sinker for sea fishing has excellent performance, can dive deeper, and can have more opportunities to catch big fish, so that the angler can get more fishing pleasure.
Golf is more and more favored by high consumers. In order to meet the needs of various groups of people without increasing the cost too much, tungsten screws began to develop under this background..The key part of the golf club is on the head. The weight, hardness, elasticity and flatness of the head will affect the movement of the ball..According to the survey of people's usage, everyone has different physiological needs for club weight.In order for everyone to maintain a good sense of comfort during use.Use the increase or decrease of tungsten screws to change the weight of the ball head to meet this demand.
In order to save energy and purify the environment, using scheelite or molybdenum oxide to replace tungsten, tungsten carbide rods,liron, molybdenum and iron as additives for direct steelmaking has achieved significant economic benefits since the early 1980s..In addition to low-alloy steel, it can also be used on high-alloy steels such as high-speed tool steel, die steel, wear-resistant steel, etc..
Hao Carbide With Alloy Bar [CNC Carbide Inserts]
Monel alloy, mainly composed of nickel (up to 67%) and copper, has a certain amount of iron and other trace elements. Monel is a binary alloy with the same ratio of nickel and copper, naturally found in the nickel mine from the *Bury (Ontario) mine by David H.Brown, metallurgist International Nickel Company Monel 401 was created. Monel was appointed president of the company after Monel, and obtained a patent in 1906. [2] Among them, L was dropped because the surname was not allowed as a trademark at the time.
Attributes:
Compared to steel, Monel is a very difficult machine because it hardens very quickly.. It needs to be opened and worked at low speed and low feed rate. It is resistant to corrosion and acid, and certain alloys can withstand fire in pure oxygen. It is usually used in applications with high corrosive conditions. Adding a small amount of aluminum and titanium to form an alloy (K-500) has the same corrosion resistance, but has greater strength, due to the formation of aging phase. Monel is usually more expensive than stainless steel .
Monel 401 has 8.83 specific gravity, about 34% conductivity IACS, and (in annealed state) 65 Rockwell B hardness
Aerospace applications:
In the 1960s, Monel alloy was found to be widely used in aircraft structures, especially in the production of frames and skin test rocket aircraft, such as the X-15 in North America, to resist the huge heat generated during aerodynamic friction. The temperature is very high. Speed flying. Monel retains its strength at very high temperatures, allowing it to maintain its shape and flying speed in a high-temperature atmosphere, adding a trade-off density to the weight of components due to Monel's high .
Marine applications:
The corrosion resistance of Monel alloy makes it very suitable for offshore applications such as piping systems, pump shafts, sea valves, drag wires, and filter baskets. These alloys are completely non-magnetic and are used for minesweeping on anchor ships. [4] For shell magnetic field measurement equipment. In recreational boats, Monel wire is used to hold the anchor rod, Monel alloy, used in water and fuel tanks, and used in underwater applications. It can also be used for propeller shafts and keel bolts.
However, due to the problem of electrolytic salt water (also known as action galvanic corrosion), in shipbuilding Monel must be carefully insulated from other metals such as steel. On August 12, 1915, he published an article about a 215-foot-long yacht, "That was once the first ship built with a complete Monel alloy hull" in just six weeks.Tungsten Carbide Rods had to be abandoned, "is considering the disintegration of her bottom by electric action.The steel frame of the yacht deteriorated due to the interaction with Monel electrolysis. [5]
Especially in seabird research and bird banding or ringing, Monel alloy has been used to make many species of bird bands or rings such as albatross live in corrosive seawater environments.
Monel alloy is also used in AVIC wiring safety to ensure that fasteners cannot be undone.
Corrosion rate is less than 0.025MM/A.High temperature corrosion: The maximum temperature of MONEL400 continuous working in air is generally around 600 , in high temperature steam, the corrosion rate is less than 0.026MM/A.Ammonia: Due to the high nickel content of MONEL400 alloy, it can withstand corrosion under anhydrous ammonia and ammoniating conditions below 585.MONEL400 alloy is a multi-purpose material, seamless water pipes and steam pipes in power plants.Sea water exchanger and evaporator.And environment.Crude oil distillation.Pump shaft and propeller of equipment used in deep sea water.Equipment for making uranium extraction and isotopic separation.Monel alloy, mainly composed of nickel (up to 67%) and copper, has a certain amount of iron and other trace elements.Monel is a binary alloy with the same ratio of nickel and copper, naturally found in the nickel mine from Bury (Ontario) by DavidH.Brown, metallurgist International Nickel Company Monel 400 was created.There are two types: processing-enhanced type, such as MonelR405, and precipitation hardening type, such as MonelK.The mechanical properties of commonly used Monel401 and K-MonelK-500 are better than Monel401, but the corrosion resistance is slightly worse.MONEL alloy is a nickel-copper corrosion-resistant alloy with excellent physical properties of high strength, high corrosion resistance and wear resistance.Belongs to the patented product of SMC Super Alloy Group.There are two types: processing-enhanced type, such as MonelR405, and precipitation hardening type, such as MonelK.The mechanical properties of commonly used Monel401 and K-MonelK-500 are better than Monel401, but the corrosion resistance is slightly worse.Monel401 plate can be called Monel401 stainless steel plate, Monel401 steel plate, Monel401 coil, Monel401 open plate, Monel401 strip steel, Monel401 cold rolled plate, Monel401 hot rolled plate, Monel401 thin plate, Monel401 medium plate, Monel401 thick plate, Monel401 extra thick plate Wait.The chemical composition of the alloy is roughly the same as Monel 400, the biggest difference is that it contains 2.3-3.15% AL and 0.30-1.00% Ti.The structural characteristics of this alloy are in addition to the diffused NI3 (AL.TI) Same as Monel 400 alloy except for precipitation phase.Generally, the corrosion resistance of Monel 500 in solid solution is basically the same as that of Monel 400 alloy. Therefore, the corrosion resistance data of Monel 400 can be used for Monel 500 alloy because of its low corrosion rate in flowing seawater. And the high strength of the alloy, therefore, the alloy is particularly suitable for manufacturing seawater corrosion-resistant centrifugal pump shafts.MONEL500 This alloy is mainly used in pump shafts, valve stems, conveyor scrapers, oil well drill rings, elastic parts, valve pads, etc., and is suitable for petroleum, chemical, shipbuilding, and electronic sectors..Seamless water pipes and steam pipes in power plants.Sea water exchanger and evaporator.
Hunan aluminum alloy bar-how much [CNC Carbide Inserts]
Hunan aluminum alloy bar-how much is it, the difference is that 63 aluminum plate has silicon and Si in addition to magnesium and Mg.Slightly better than 52 in strength.The same point is the aluminum alloy with magnesium Mg as the main alloying element.Now the 52 aluminum plates and 63 aluminum plates on the market are very popular and widely used. So, what is the difference between 52 aluminum plates and 63 aluminum platesThe technician will help you.
Supply of overcapacity in large areas of aluminum plate material-supply of aluminum plate material, ceramic aluminum plate, punched aluminum plate, aluminum ceiling, mesh, aluminum plate, carved aluminum plate, shaped tile, aluminum plate, and other large areas of overcapacity. "From 100 million tons to 800 million tons now, Still talking about overcapacity," the deputy secretary-general of China Iron and Steel Association said in an interview with "China".Recently, the China Iron and Steel Association announced that China's steel production capacity had reached 800 million tons at that time, but in practice, the compliant steel production capacity was only 400 million tons, and 400 million tons of production capacity had not been approved by the state..Demand status edit annealing temperature is 345.Elastic modulus (E) 63-70.7Gpa condition yield strength 0.2(MPa65 Tensile strength 170 3MPa Aluminum Al allowance; Silicon Si0.25; Copper Cu0.10; Magnesium Mg 2 8; Zinc Zn0.10; Manganese Mn0.10; chromium Cr0.15-0.35; Iron Fe0.40.Chemical composition and performance.
This mirror surface is produced by mechanical polishing, and there is no electroplated coating on the surface. Before the sandblasting anode processing, there is no need to remove the anode or electroplating film. It can be directly sandblasted and anode processed. The sandblasted rough grain size can reach 240# or more without pretreatment , Can be directly printed, stamped and processed, with high reflectivity.The mirror surface features pure material, suitable for high-demand and stable anodized surface treatment, such as chemical polishing, atomization, chemical sanding, electro-polishing, dyeing and sealing.Surface treatment.
In order to solve the thermal stress and deformation of the aluminum plate surface, some enterprise production equipment manufacturers, especially when using aluminum-plastic composite panels through panel data, safely add a circle of side ribs to the periphery of the unit teaching plate. From the production technology process, it is The panel is grooved and folded into a box shape on the groover according to the hemming size of the plate.The other line is to cut and assemble the side rib profile into a side rib frame according to the development of the plate..
Fan Shunke, vice chairman of the Party Committee of China Nonferrous Metals Industry Association, pointed out at the 8th Guangdong Aluminum Processing Technology (International) Seminar that in recent years, with the joint efforts of the entire industry, China's aluminum processing industry has achieved World-renowned achievements, production and consumption have ranked in the world for 11 consecutive years. In 2016, the output of aluminum processing materials reached 35.2 million tons. From the perspective of industrial scale, industrial standard, quality, technology and equipment, China is already a veritable aluminum processing power, and to a certain extent Shanghai has become a powerful country.In the future, my country's aluminum processing industry should focus on increasing investment in research and development and improving independent innovation capabilities. At the same time, environmental protection and recycling are still important development directions for the industry.Independent innovation and green environmental protection are still important development directions of China's aluminum processing industry.tungsten carbide.
But the actual consumption in the past reached 700 million tons.The China Iron and Steel Association estimates that the consumption of crude steel will reach 800 million tons, while the steel capacity agreed by the state at that time is only 400 million tons. There are still 400 million tons of illegal capacity in the market that will compensate for the demand gap..In fact, in the past 10 years of micro-control of the aluminum plate data, China's steel, cement, non-ferrous metals and other industries have been continuously defined as "overcapacity" industries, and have been applied to relatively serious construction sites, such as the approval of fiscal and taxation projects. policy.
3A21 aluminum plate.Aircraft fuel tank oil pipe rivet wire, etc.; construction materials and food and other industrial equipment, etc. 31 aluminum plates.Room partition baffle, movable house slab gutter and downpipe, thin plate forming processing parts, bottle caps and corks, etc. 30 aluminum plates.The body of all-aluminum cans requires higher strength parts than 3003 alloy. Chemical products are producedTungsten WeightProduction and storage equipment, sheet processing parts, construction processing parts, construction tools, various lamps and lanterns.
Inferior aluminum alloy profiles will greatly reduce the sealing time, and at the same time reduce the loss of chemical reagents and cost, but the corrosion resistance of the profiles will also be greatly reduced..Unqualified chemical composition, the cost of aluminum alloy profiles doped with a large amount of miscellaneous aluminum and scrap aluminum in the product will be greatly reduced, but it will cause the chemical composition of the architectural aluminum alloy profiles to be unqualified, and severely endanger Construction safety.
Most of the industrial aluminum alloys are developed according to the existing needs of users. Some industries have strong development capabilities, such as rail vehicle manufacturing and automobile manufacturing, but some small industries lack their own development capabilities, or have not realized that they can be replaced by industrial aluminum alloys. Current materials require manufacturers to assist users in developing alternative industrial aluminum alloys. To do this, they need to go out and conduct detailed investigations of materials used in various industries to find out which ones are suitable to be replaced by aluminum alloys. Materials used, through these developments, can expand the market for industrial aluminum alloy demand, especially the development of large-scale industries.rock drill bits Increasing market demand can alleviate the fierce competition faced by the large and extra-large extrusion lines under construction after completion.Improve the overall production technology of industrial aluminum alloy.Most of the industrial aluminum types have strict requirements on material performance, size tolerances, etc. Although the profit of industrial aluminum alloys is higher than that of architectural aluminum alloys, its production is also relatively difficult and the technical requirements are higher, especially for complex flats. The production technology of large-scale industrial aluminum alloys with wide and thin walls is still far behind foreign countries..Further efforts are needed to improve the technical level. Only when the overall technical level is improved, can my country's industrial aluminum alloy be in a favorable position in international competition and create conditions for opening up foreign markets and participating in international competition..With the continuous development of the industrial aluminum alloy industry, more and more enterprises have applied to the industrial aluminum alloy industry. Among them, the rapid development of a number of enterprises has attracted wide attention. For example, the industrial aluminum alloy enterprises in Tianjin and Shanghai are domestic production. Key areas of industrial aluminum alloy.Equipped with mold design and development of aluminum extrusion production industrial frame and assembly line conveyor line equipment development and installation of aluminum products deep processing and other non-standard industrial aluminum alloy products.After years of development, we have a complete aluminum alloy structure installation accessories.The design of various accessories is reasonable, which can greatly improve the assembly efficiency of the aluminum alloy frame and reduce the cost of customers. Various precision machining equipment can provide a one-stop service area for the design, processing and assembly of aluminum alloy structural frames..In recent years, China's aluminum processing industry has closely combined with the needs of the market and scientific development, so that traditional aluminum processing materials have gradually completed the transformation to modern aluminum processing materials. Therefore, China's aluminum processing materials have undergone tremendous changes..The important feature of China's aluminum processing materials is the development of high performance, high precision, energy saving and environmental protection. Many products have become well-known brands at home and abroad, and enjoy a high reputation in the domestic and foreign markets; product quality has been steadily improved, and product standards have been in the international ranks. In addition to producing according to standards, aluminum manufacturers can directly accept orders according to some key standards.This shows that the production of aluminum processing materials in my country has been further internationalized, and in order to meet the various needs of the national economy and science and technology for high-precision aluminum materials, major aluminum processing companies have also formulated many internal supply technology standards. The status of industrial aluminum alloys What?
Supply of overcapacity in large areas of aluminum plate material-supply of aluminum plate material, ceramic aluminum plate, punched aluminum plate, aluminum ceiling, mesh, aluminum plate, carved aluminum plate, shaped tile, aluminum plate, and other large areas of overcapacity. "From 100 million tons to 800 million tons now, Still talking about overcapacity," the deputy secretary-general of China Iron and Steel Association said in an interview with "China".Recently, the China Iron and Steel Association announced that China's steel production capacity had reached 800 million tons at that time, but in practice, the compliant steel production capacity was only 400 million tons, and 400 million tons of production capacity had not been approved by the state..Demand status edit annealing temperature is 345.Elastic modulus (E) 63-70.7Gpa condition yield strength 0.2(MPa65 Tensile strength 170 3MPa Aluminum Al allowance; Silicon Si0.25; Copper Cu0.10; Magnesium Mg 2 8; Zinc Zn0.10; Manganese Mn0.10; chromium Cr0.15-0.35; Iron Fe0.40.Chemical composition and performance.
This mirror surface is produced by mechanical polishing, and there is no electroplated coating on the surface. Before the sandblasting anode processing, there is no need to remove the anode or electroplating film. It can be directly sandblasted and anode processed. The sandblasted rough grain size can reach 240# or more without pretreatment , Can be directly printed, stamped and processed, with high reflectivity.The mirror surface features pure material, suitable for high-demand and stable anodized surface treatment, such as chemical polishing, atomization, chemical sanding, electro-polishing, dyeing and sealing.Surface treatment.
In order to solve the thermal stress and deformation of the aluminum plate surface, some enterprise production equipment manufacturers, especially when using aluminum-plastic composite panels through panel data, safely add a circle of side ribs to the periphery of the unit teaching plate. From the production technology process, it is The panel is grooved and folded into a box shape on the groover according to the hemming size of the plate.The other line is to cut and assemble the side rib profile into a side rib frame according to the development of the plate..
Fan Shunke, vice chairman of the Party Committee of China Nonferrous Metals Industry Association, pointed out at the 8th Guangdong Aluminum Processing Technology (International) Seminar that in recent years, with the joint efforts of the entire industry, China's aluminum processing industry has achieved World-renowned achievements, production and consumption have ranked in the world for 11 consecutive years. In 2016, the output of aluminum processing materials reached 35.2 million tons. From the perspective of industrial scale, industrial standard, quality, technology and equipment, China is already a veritable aluminum processing power, and to a certain extent Shanghai has become a powerful country.In the future, my country's aluminum processing industry should focus on increasing investment in research and development and improving independent innovation capabilities. At the same time, environmental protection and recycling are still important development directions for the industry.Independent innovation and green environmental protection are still important development directions of China's aluminum processing industry.tungsten carbide.
But the actual consumption in the past reached 700 million tons.The China Iron and Steel Association estimates that the consumption of crude steel will reach 800 million tons, while the steel capacity agreed by the state at that time is only 400 million tons. There are still 400 million tons of illegal capacity in the market that will compensate for the demand gap..In fact, in the past 10 years of micro-control of the aluminum plate data, China's steel, cement, non-ferrous metals and other industries have been continuously defined as "overcapacity" industries, and have been applied to relatively serious construction sites, such as the approval of fiscal and taxation projects. policy.
3A21 aluminum plate.Aircraft fuel tank oil pipe rivet wire, etc.; construction materials and food and other industrial equipment, etc. 31 aluminum plates.Room partition baffle, movable house slab gutter and downpipe, thin plate forming processing parts, bottle caps and corks, etc. 30 aluminum plates.The body of all-aluminum cans requires higher strength parts than 3003 alloy. Chemical products are producedTungsten WeightProduction and storage equipment, sheet processing parts, construction processing parts, construction tools, various lamps and lanterns.
Inferior aluminum alloy profiles will greatly reduce the sealing time, and at the same time reduce the loss of chemical reagents and cost, but the corrosion resistance of the profiles will also be greatly reduced..Unqualified chemical composition, the cost of aluminum alloy profiles doped with a large amount of miscellaneous aluminum and scrap aluminum in the product will be greatly reduced, but it will cause the chemical composition of the architectural aluminum alloy profiles to be unqualified, and severely endanger Construction safety.
Most of the industrial aluminum alloys are developed according to the existing needs of users. Some industries have strong development capabilities, such as rail vehicle manufacturing and automobile manufacturing, but some small industries lack their own development capabilities, or have not realized that they can be replaced by industrial aluminum alloys. Current materials require manufacturers to assist users in developing alternative industrial aluminum alloys. To do this, they need to go out and conduct detailed investigations of materials used in various industries to find out which ones are suitable to be replaced by aluminum alloys. Materials used, through these developments, can expand the market for industrial aluminum alloy demand, especially the development of large-scale industries.rock drill bits Increasing market demand can alleviate the fierce competition faced by the large and extra-large extrusion lines under construction after completion.Improve the overall production technology of industrial aluminum alloy.Most of the industrial aluminum types have strict requirements on material performance, size tolerances, etc. Although the profit of industrial aluminum alloys is higher than that of architectural aluminum alloys, its production is also relatively difficult and the technical requirements are higher, especially for complex flats. The production technology of large-scale industrial aluminum alloys with wide and thin walls is still far behind foreign countries..Further efforts are needed to improve the technical level. Only when the overall technical level is improved, can my country's industrial aluminum alloy be in a favorable position in international competition and create conditions for opening up foreign markets and participating in international competition..With the continuous development of the industrial aluminum alloy industry, more and more enterprises have applied to the industrial aluminum alloy industry. Among them, the rapid development of a number of enterprises has attracted wide attention. For example, the industrial aluminum alloy enterprises in Tianjin and Shanghai are domestic production. Key areas of industrial aluminum alloy.Equipped with mold design and development of aluminum extrusion production industrial frame and assembly line conveyor line equipment development and installation of aluminum products deep processing and other non-standard industrial aluminum alloy products.After years of development, we have a complete aluminum alloy structure installation accessories.The design of various accessories is reasonable, which can greatly improve the assembly efficiency of the aluminum alloy frame and reduce the cost of customers. Various precision machining equipment can provide a one-stop service area for the design, processing and assembly of aluminum alloy structural frames..In recent years, China's aluminum processing industry has closely combined with the needs of the market and scientific development, so that traditional aluminum processing materials have gradually completed the transformation to modern aluminum processing materials. Therefore, China's aluminum processing materials have undergone tremendous changes..The important feature of China's aluminum processing materials is the development of high performance, high precision, energy saving and environmental protection. Many products have become well-known brands at home and abroad, and enjoy a high reputation in the domestic and foreign markets; product quality has been steadily improved, and product standards have been in the international ranks. In addition to producing according to standards, aluminum manufacturers can directly accept orders according to some key standards.This shows that the production of aluminum processing materials in my country has been further internationalized, and in order to meet the various needs of the national economy and science and technology for high-precision aluminum materials, major aluminum processing companies have also formulated many internal supply technology standards. The status of industrial aluminum alloys What?
Hunan aluminum alloy bar-how much [CNC Carbide Inserts]
Hunan aluminum alloy bar-how much is it, the difference is that 63 aluminum plate has silicon and Si in addition to magnesium and Mg.Slightly better than 52 in strength.The same point is the aluminum alloy with magnesium Mg as the main alloying element.Now the 52 aluminum plates and 63 aluminum plates on the market are very popular and widely used. So, what is the difference between 52 aluminum plates and 63 aluminum platesThe technician will help you.
Supply of overcapacity in large areas of aluminum plate material-supply of aluminum plate material, ceramic aluminum plate, punched aluminum plate, aluminum ceiling, mesh, aluminum plate, carved aluminum plate, shaped tile, aluminum plate, and other large areas of overcapacity. "From 100 million tons to 800 million tons now, Still talking about overcapacity," the deputy secretary-general of China Iron and Steel Association said in an interview with "China".Recently, the China Iron and Steel Association announced that China's steel production capacity had reached 800 million tons at that time, but in practice, the compliant steel production capacity was only 400 million tons, and 400 million tons of production capacity had not been approved by the state..Demand status edit annealing temperature is 345.Elastic modulus (E) 63-70.7Gpa condition yield strength 0.2(MPa65 Tensile strength 170 3MPa Aluminum Al allowance; Silicon Si0.25; Copper Cu0.10; Magnesium Mg 2 8; Zinc Zn0.10; Manganese Mn0.10; chromium Cr0.15-0.35; Iron Fe0.40.Chemical composition and performance.
This mirror surface is produced by mechanical polishing, and there is no electroplated coating on the surface. Before the sandblasting anode processing, there is no need to remove the anode or electroplating film. It can be directly sandblasted and anode processed. The sandblasted rough grain size can reach 240# or more without pretreatment , Can be directly printed, stamped and processed, with high reflectivity.The mirror surface features pure material, suitable for high-demand and stable anodized surface treatment, such as chemical polishing, atomization, chemical sanding, electro-polishing, dyeing and sealing.Surface treatment.
In order to solve the thermal stress and deformation of the aluminum plate surface, some enterprise production equipment manufacturers, especially when using aluminum-plastic composite panels through panel data, safely add a circle of side ribs to the periphery of the unit teaching plate. From the production technology process, it is The panel is grooved and folded into a box shape on the groover according to the hemming size of the plate.The other line is to cut and assemble the side rib profile into a side rib frame according to the development of the plate..
Fan Shunke, vice chairman of the Party Committee of China Nonferrous Metals Industry Association, pointed out at the 8th Guangdong Aluminum Processing Technology (International) Seminar that in recent years, with the joint efforts of the entire industry, China's aluminum processing industry has achieved World-renowned achievements, production and consumption have ranked in the world for 11 consecutive years. In 2016, the output of aluminum processing materials reached 35.2 million tons. From the perspective of industrial scale, industrial standard, quality, technology and equipment, China is already a veritable aluminum processing power, and to a certain extent Shanghai has become a powerful country.In the future, my country's aluminum processing industry should focus on increasing investment in research and development and improving independent innovation capabilities. At the same time, environmental protection and recycling are still important development directions for the industry.Independent innovation and green environmental protection are still important development directions of China's aluminum processing industry.tungsten carbide.
But the actual consumption in the past reached 700 million tons.The China Iron and Steel Association estimates that the consumption of crude steel will reach 800 million tons, while the steel capacity agreed by the state at that time is only 400 million tons. There are still 400 million tons of illegal capacity in the market that will compensate for the demand gap..In fact, in the past 10 years of micro-control of the aluminum plate data, China's steel, cement, non-ferrous metals and other industries have been continuously defined as "overcapacity" industries, and have been applied to relatively serious construction sites, such as the approval of fiscal and taxation projects. policy.
3A21 aluminum plate.Aircraft fuel tank oil pipe rivet wire, etc.; construction materials and food and other industrial equipment, etc. 31 aluminum plates.Room partition baffle, movable house slab gutter and downpipe, thin plate forming processing parts, bottle caps and corks, etc. 30 aluminum plates.The body of all-aluminum cans requires higher strength parts than 3003 alloy. Chemical products are producedTungsten WeightProduction and storage equipment, sheet processing parts, construction processing parts, construction tools, various lamps and lanterns.
Inferior aluminum alloy profiles will greatly reduce the sealing time, and at the same time reduce the loss of chemical reagents and cost, but the corrosion resistance of the profiles will also be greatly reduced..Unqualified chemical composition, the cost of aluminum alloy profiles doped with a large amount of miscellaneous aluminum and scrap aluminum in the product will be greatly reduced, but it will cause the chemical composition of the architectural aluminum alloy profiles to be unqualified, and severely endanger Construction safety.
Most of the industrial aluminum alloys are developed according to the existing needs of users. Some industries have strong development capabilities, such as rail vehicle manufacturing and automobile manufacturing, but some small industries lack their own development capabilities, or have not realized that they can be replaced by industrial aluminum alloys. Current materials require manufacturers to assist users in developing alternative industrial aluminum alloys. To do this, they need to go out and conduct detailed investigations of materials used in various industries to find out which ones are suitable to be replaced by aluminum alloys. Materials used, through these developments, can expand the market for industrial aluminum alloy demand, especially the development of large-scale industries. Increasing market demand can alleviate the fierce competition faced by the large and extra-large extrusion lines under construction after completion.Improve the overall production technology of industrial aluminum alloy.Most of the industrial aluminum types have strict requirements on material performance, size tolerances, etc. Although the profit of industrial aluminum alloys is higher than that of architectural aluminum alloys, its production is also relatively difficult and the technical requirements are higher, especially for complex flats. The production technology of large-scale industrial aluminum alloys with wide and thin walls is still far behind foreign countries..Further efforts are needed to improve the technical level. Only when the overall technical level is improved, can my country's industrial aluminum alloy be in a favorable position in international competition and create conditions for opening up foreign markets and participating in international competition..With the continuous development of the industrial aluminum alloy industry, more and more enterprises have applied to the industrial aluminum alloy industry. Among them, the rapid development of a number of enterprises has attracted wide attention. For example, the industrial aluminum alloy enterprises in Tianjin and Shanghai are domestic production. Key areas of industrial aluminum alloy.Equipped with mold design and development of aluminum extrusion production industrial frame and assembly line conveyor line equipment development and installation of aluminum products deep processing and other non-standard industrial aluminum alloy products.After years of development, we have a complete aluminum alloy structure installation accessories.The design of various accessories is reasonable, which can greatly improve the assembly efficiency of the aluminum alloy frame and reduce the cost of customers. Various precision machining equipment can provide a one-stop service area for the design, processing and assembly of aluminum alloy structural frames..In recent years, China's aluminum processing industry has closely combined with the needs of the market and scientific development, so that traditional aluminum processing materials have gradually completed the transformation to modern aluminum processing materials. Therefore, China's aluminum processing materials have undergone tremendous changes..The important feature of China's aluminum processing materials is the development of high performance, high precision, energy saving and environmental protection. Many products have become well-known brands at home and abroad, and enjoy a high reputation in the domestic and foreign markets; product quality has been steadily improved, and product standards have been in the international ranks. In addition to producing according to standards, aluminum manufacturers can directly accept orders according to some key standards.This shows that the production of aluminum processing materials in my country has been further internationalized, and in order to meet the various needs of the national economy and science and technology for high-precision aluminum materials, major aluminum processing companies have also formulated many internal supply technology standards. The status of industrial aluminum alloys What?
Supply of overcapacity in large areas of aluminum plate material-supply of aluminum plate material, ceramic aluminum plate, punched aluminum plate, aluminum ceiling, mesh, aluminum plate, carved aluminum plate, shaped tile, aluminum plate, and other large areas of overcapacity. "From 100 million tons to 800 million tons now, Still talking about overcapacity," the deputy secretary-general of China Iron and Steel Association said in an interview with "China".Recently, the China Iron and Steel Association announced that China's steel production capacity had reached 800 million tons at that time, but in practice, the compliant steel production capacity was only 400 million tons, and 400 million tons of production capacity had not been approved by the state..Demand status edit annealing temperature is 345.Elastic modulus (E) 63-70.7Gpa condition yield strength 0.2(MPa65 Tensile strength 170 3MPa Aluminum Al allowance; Silicon Si0.25; Copper Cu0.10; Magnesium Mg 2 8; Zinc Zn0.10; Manganese Mn0.10; chromium Cr0.15-0.35; Iron Fe0.40.Chemical composition and performance.
This mirror surface is produced by mechanical polishing, and there is no electroplated coating on the surface. Before the sandblasting anode processing, there is no need to remove the anode or electroplating film. It can be directly sandblasted and anode processed. The sandblasted rough grain size can reach 240# or more without pretreatment , Can be directly printed, stamped and processed, with high reflectivity.The mirror surface features pure material, suitable for high-demand and stable anodized surface treatment, such as chemical polishing, atomization, chemical sanding, electro-polishing, dyeing and sealing.Surface treatment.
In order to solve the thermal stress and deformation of the aluminum plate surface, some enterprise production equipment manufacturers, especially when using aluminum-plastic composite panels through panel data, safely add a circle of side ribs to the periphery of the unit teaching plate. From the production technology process, it is The panel is grooved and folded into a box shape on the groover according to the hemming size of the plate.The other line is to cut and assemble the side rib profile into a side rib frame according to the development of the plate..
Fan Shunke, vice chairman of the Party Committee of China Nonferrous Metals Industry Association, pointed out at the 8th Guangdong Aluminum Processing Technology (International) Seminar that in recent years, with the joint efforts of the entire industry, China's aluminum processing industry has achieved World-renowned achievements, production and consumption have ranked in the world for 11 consecutive years. In 2016, the output of aluminum processing materials reached 35.2 million tons. From the perspective of industrial scale, industrial standard, quality, technology and equipment, China is already a veritable aluminum processing power, and to a certain extent Shanghai has become a powerful country.In the future, my country's aluminum processing industry should focus on increasing investment in research and development and improving independent innovation capabilities. At the same time, environmental protection and recycling are still important development directions for the industry.Independent innovation and green environmental protection are still important development directions of China's aluminum processing industry.tungsten carbide.
But the actual consumption in the past reached 700 million tons.The China Iron and Steel Association estimates that the consumption of crude steel will reach 800 million tons, while the steel capacity agreed by the state at that time is only 400 million tons. There are still 400 million tons of illegal capacity in the market that will compensate for the demand gap..In fact, in the past 10 years of micro-control of the aluminum plate data, China's steel, cement, non-ferrous metals and other industries have been continuously defined as "overcapacity" industries, and have been applied to relatively serious construction sites, such as the approval of fiscal and taxation projects. policy.
3A21 aluminum plate.Aircraft fuel tank oil pipe rivet wire, etc.; construction materials and food and other industrial equipment, etc. 31 aluminum plates.Room partition baffle, movable house slab gutter and downpipe, thin plate forming processing parts, bottle caps and corks, etc. 30 aluminum plates.The body of all-aluminum cans requires higher strength parts than 3003 alloy. Chemical products are producedTungsten WeightProduction and storage equipment, sheet processing parts, construction processing parts, construction tools, various lamps and lanterns.
Inferior aluminum alloy profiles will greatly reduce the sealing time, and at the same time reduce the loss of chemical reagents and cost, but the corrosion resistance of the profiles will also be greatly reduced..Unqualified chemical composition, the cost of aluminum alloy profiles doped with a large amount of miscellaneous aluminum and scrap aluminum in the product will be greatly reduced, but it will cause the chemical composition of the architectural aluminum alloy profiles to be unqualified, and severely endanger Construction safety.
Most of the industrial aluminum alloys are developed according to the existing needs of users. Some industries have strong development capabilities, such as rail vehicle manufacturing and automobile manufacturing, but some small industries lack their own development capabilities, or have not realized that they can be replaced by industrial aluminum alloys. Current materials require manufacturers to assist users in developing alternative industrial aluminum alloys. To do this, they need to go out and conduct detailed investigations of materials used in various industries to find out which ones are suitable to be replaced by aluminum alloys. Materials used, through these developments, can expand the market for industrial aluminum alloy demand, especially the development of large-scale industries. Increasing market demand can alleviate the fierce competition faced by the large and extra-large extrusion lines under construction after completion.Improve the overall production technology of industrial aluminum alloy.Most of the industrial aluminum types have strict requirements on material performance, size tolerances, etc. Although the profit of industrial aluminum alloys is higher than that of architectural aluminum alloys, its production is also relatively difficult and the technical requirements are higher, especially for complex flats. The production technology of large-scale industrial aluminum alloys with wide and thin walls is still far behind foreign countries..Further efforts are needed to improve the technical level. Only when the overall technical level is improved, can my country's industrial aluminum alloy be in a favorable position in international competition and create conditions for opening up foreign markets and participating in international competition..With the continuous development of the industrial aluminum alloy industry, more and more enterprises have applied to the industrial aluminum alloy industry. Among them, the rapid development of a number of enterprises has attracted wide attention. For example, the industrial aluminum alloy enterprises in Tianjin and Shanghai are domestic production. Key areas of industrial aluminum alloy.Equipped with mold design and development of aluminum extrusion production industrial frame and assembly line conveyor line equipment development and installation of aluminum products deep processing and other non-standard industrial aluminum alloy products.After years of development, we have a complete aluminum alloy structure installation accessories.The design of various accessories is reasonable, which can greatly improve the assembly efficiency of the aluminum alloy frame and reduce the cost of customers. Various precision machining equipment can provide a one-stop service area for the design, processing and assembly of aluminum alloy structural frames..In recent years, China's aluminum processing industry has closely combined with the needs of the market and scientific development, so that traditional aluminum processing materials have gradually completed the transformation to modern aluminum processing materials. Therefore, China's aluminum processing materials have undergone tremendous changes..The important feature of China's aluminum processing materials is the development of high performance, high precision, energy saving and environmental protection. Many products have become well-known brands at home and abroad, and enjoy a high reputation in the domestic and foreign markets; product quality has been steadily improved, and product standards have been in the international ranks. In addition to producing according to standards, aluminum manufacturers can directly accept orders according to some key standards.This shows that the production of aluminum processing materials in my country has been further internationalized, and in order to meet the various needs of the national economy and science and technology for high-precision aluminum materials, major aluminum processing companies have also formulated many internal supply technology standards. The status of industrial aluminum alloys What?
Where can Jiangsu professional aluminum alloy bars have full service [CNC Carbide Inserts]
Where can Jiangsu professional aluminum alloy bars have a full range of services? The anti-collision beams generally use steel plates and steel rolling parts.But now the anti-collision beam also uses automotive aluminum, because aluminum alloy has good energy absorption effect, it has been widely used in the bumper anti-collision beam assembly of joint venture brand models..However, domestic self-owned brand models are limited to cost and other reasons, and are less used.Jinyu Aluminum has done related research on aluminum alloy anti-collision beam assembly. The research shows that the weight of aluminum anti-collision beam is reduced by 25% compared with the original steel anti-collision beam, which has higher bending strength and low-speed crash test. Under the conditions, the energy absorption effect of aluminum alloy front anti-collision beam is 45% higher than that of steel parts system.
In 1915, Alcoa invented the 2017 alloy and in 1933 invented the 2024 alloy, which enabled the rapid expansion of the application of aluminum in aircraft.In 1933, Alcoa invented 61 alloy, and then created the extruder quenching process, which significantly expanded the application range of extruded profiles.In 19, Alcoa invented the electrical aluminum alloy 10 and made it into a steel core aluminum stranded wire, creating a pioneer in high-voltage remote power transmission.
Aluminum alloy is the aluminum material with different cross-sectional shapes through hot melt extrusion of aluminum rods.Its frame characteristics have the following 4 characteristics of industrial aluminum alloy frames. 16 After the wire drawing work piece undergoes alkali etching, it is possible to have a negative and positive surface (that is, when the work piece is illuminated at a certain angle, the surface has different shades of mottling). This is mainly caused by the material. The use of alkaline etching or acid etching before drawing can reduce or prevent this kind of phenomenon..
Hoof and casters as shown in the figure. Other accessories Industrial aluminum alloy. Other accessories include hinge end cover, movable hook, flat seal groove strip, U-shaped groove strip handle and lifting eyes, etc..Hinge is used for active connection between profile and profile or profile and plate.The end cover is installed on the end face of the profile, which is both beautiful and safe.The movable hook can be inserted into the groove of the profile to slide back and forth.
5182 thin plate for easy processingtungsten carbide rods Pull can cover, car body panel control panel reinforcement bracket and other components 5154 welded structure storage tank pressure vessel ship structure and offshore facility transportation tank 56 used in occasions that require high corrosion resistance, good weldability and medium strength , Such as ships, automobiles, airplanes, cryogenic equipment, television tower, drilling equipment, transportation equipment parts and decks.
Most of the industrial aluminum alloys are developed according to the existing needs of users. Some industries have strong development capabilities, such as rail vehicle manufacturing and automobile manufacturing, but some small industries lack their own development capabilities, or have not realized that they can be replaced by industrial aluminum alloys. Current materials require manufacturers to assist users in developing alternative industrial aluminum alloys. To do this, they need to go out and conduct detailed investigations of materials used in various industries to find out which ones are suitable to be replaced by aluminum alloys. Materials used, through these developments, can expand the market for industrial aluminum alloy demand, especially the development of large-scale industries. Increasing market demand can alleviate the fierce competition faced by the large and extra-large extrusion lines under construction after completion.Improve the overall production technology of industrial aluminum alloy.Most of the industrial aluminum types have strict requirements on material performance, size tolerances, etc. Although the profit of industrial aluminum alloys is higher than that of architectural aluminum alloys, its production is also relatively difficult and the technical requirements are higher, especially for complex flats. The production technology of large-scale industrial aluminum alloys with wide and thin walls is still far behind foreign countries..Further efforts are needed to improve the technical level. Only when the overall technical level is improved, can my country's industrial aluminum alloy be in a favorable position in international competition and create conditions for opening up foreign markets and participating in international competition..With the continuous development of the industrial aluminum alloy industry, more and more enterprises have applied to the industrial aluminum alloy industry. Among them, the rapid development of a number of enterprises has attracted wide attention. For example, the industrial aluminum alloy enterprises in Tianjin and Shanghai are domestic professionals. Key areas for the production of industrial aluminum alloys.Equipped with mold design and development of aluminum extrusion production industrial frame and assembly line conveyor line equipment development and installation of aluminum products deep processing and other non-standard industrial aluminum alloy products.After years of development, we have a complete aluminum alloy structure installation accessories.The design of various accessories is reasonable, which can greatly improve the assembly efficiency of the aluminum alloy frame and reduce the cost of customers. Various precision machining equipment can provide a one-stop service area for the design, processing and assembly of aluminum alloy structural frames..In recent years, China's aluminum processing industry has closely combined with the needs of the market and scientific development, so that traditional aluminum processing materials have gradually completed the transformation to modern aluminum processing materials. Therefore, China's aluminum processing materials have undergone tremendous changes..The important feature of China's aluminum processing materials is the development of high performance, high precision, energy saving and environmental protection. Many products have become well-known brands at home and abroad, and enjoy a high reputation in the domestic and foreign markets; product quality has been steadily improved, and product standards have been in the international ranks. In addition to producing according to standards, aluminum manufacturers can directly accept orders according to some key standards.This shows that the production of aluminum processing materials in my country has been further internationalized, and in order to meet the various needs of the national economy and science and technology for high-precision aluminum materials, major aluminum processing companies have also formulated many internal supply technology standards. The status of industrial aluminum alloys What?1.
In 1915, Alcoa invented the 2017 alloy and in 1933 invented the 2024 alloy, which enabled the rapid expansion of the application of aluminum in aircraft.In 1933, Alcoa invented 61 alloy, and then created the extruder quenching process, which significantly expanded the application range of extruded profiles.In 19, Alcoa invented the electrical aluminum alloy 10 and made it into a steel core aluminum stranded wire, creating a pioneer in high-voltage remote power transmission.
Where can Jiangsu professional aluminum alloy bars provide full service? In 1915, Alcoa invented 2017 alloy and in 1933 invented 2024 alloy, which enabled the rapid expansion of aluminum applications in aircraft.In 1933, Alcoa invented 61 alloy, and then created the extruder quenching process, which significantly expanded the application range of extruded profiles.In 19, Alcoa invented the electrical aluminum alloy 10 and made it into a steel core aluminum stranded wire, creating a pioneer in high-voltage remote power transmission.
Well-known manufacturer of Taiwan hard alloy bars and gaskets [CNC Carbide Inserts]
HAO Carbide Co., Ltd is a production enterprise integrating R&D, production and sales of cemented carbide.HAO Carbide Co., Ltd has a group of experienced professional technical and management talents, and is dedicated to providing customers with high-quality cemented carbide products and non-magnetic products.
HAO Carbide Co., Ltd adopts advanced production technology and has domestic leading manufacturing equipment, with stable and reliable product quality.
Taiwan hard alloy bar
The cutting speed and cutting depth are reduced, but the width of the cut seam of the tungsten steel plate is increased, that is, the amount of material damage per unit time is increased.Under the same pressure condition, the diameter of comparison is 0.1mm and 0.The cutting quality of the material processed by the 4mm nozzle is stillTungsten WeightIt is found that as the nozzle diameter increases, the slit becomes wider, the chip size becomes larger, and the slit quality (roughness) also significantly deteriorates.In order to better reduce costs, engineers and manufacturers continue to explore, and now Anhui impact resistant waterjet can effectively reduce costs to create greater profits.
The requirement is to work under high pressure conditions, but inlay ceramics or high alloys.The nozzle for cleaning the net cage cloth is generally a fan nozzle or a self-cleaning nozzle.2. Electronics.The large space of the large electronic factory is to be humidified and cooled, and the spray nozzle is used..The cleaning carbide bushing of electronic board has fan-shaped and wide-angle.The rosin nozzle after the circuit board is formed is to protect the circuit board very well, and the nozzle of Saigang can also be used..3. Thermal power plant.Large-flow nozzles such as silicon carbide nozzles and spiral nozzles are used for desulfurization and dust removal.
For customers' personalized orders, there are corresponding engineers to formulate more suitable product plans for you, so as to be considerate and professional..HAO Carbide Co., Ltd adheres to the concept of "Being dedication to work and treating others sincerely", and sincerely look forward to working with you for a win-win.
Well-known gasket manufacturers
But if the power is too small, it will cause the workpiece to be oxidized, so we must pay attention to the use of power when using this method for welding.When the fighter plane reaches the sky above the target, it launches quickly.The modern hard alloy cold heading die is different from before. It used to put a heavy fire. For example, the Tomahawk bullet can carry 450 kg of TN and high explosive..Modern fighters can't carry much. It has changed a new concept of striking the target. Instead of using the traditional one, it puts a metal rod made of metal tungsten. This is the tungsten rod..
2. Flip type.The clamp has a supporting surface in the price direction. During processing, you can flip it by hand to each need to be drilled with confidence.This style of cemented carbide bushing is suitable for drilling small workpieces, not suitable for large or large-scale workpieces.If you want to drill, you need to consider which style to choose.3. Cover type.Free drilling template without clamping concrete. When using, install the drilling template directly on the positioning reference surface of the workpiece, which is suitable for drilling small holes on larger workpieces..
We firmly believe that cooperating with "HAO Carbide Co., Ltd " is your no regrets choice.The company insists on creating high-quality cemented carbide products with high-precision talents and high-precision technical equipment, and is determined to establish my country's cemented carbide national brand and make Zhuzhou manufacturing famous all over the world.
The company insists on innovation and development, develops new products with new technology and high rate, especially in the field of non-standard, special-shaped and cemented carbide materials, and establishes an influence, with strong supply capacity, fast delivery guarantee, and stable product quality. Global customer demand
Taiwan hard alloy bar
The grille should be replaced according to the actual cutting accuracy requirements. A grille that is too badly damaged will easily affect the cutting accuracy..Moving and flipping the workbench grid can extend its service life and reduce usage costs.Tungsten steel plate manufacturers summarize the daily problems encountered in waterjet cutting, which is also a good habit of using equipment, and can further reduce the cost of use.3Does waterjet cutting require fixtures?From a mechanical point of view, the material only bears the force in the vertical direction during the waterjet cutting process, and the force in the horizontal direction is very small..
If the damage is caused by the tissue stress, then the external environment and conditions of the processing equipment should be controlled first to reduce the possibility of damage; if it is caused by the mechanical stress, the use of the material itself should be considered As well as the possible external processing environment, etc., these are all good things to pay attention to.In order to prevent the roll from breaking, attention should be paid to reducing residual stress, organizational force and thermal stress during processing and use, and different planning considerations should be made in consideration of the needs of different processing environments..This is the matter to be considered when using cemented carbide bushings. You can also have a basic consideration when using it to see if it can meet your actual processing needs and reduce the possibility of fracture..
HAO Carbide Co., Ltd adopts advanced production technology and has domestic leading manufacturing equipment, with stable and reliable product quality.
Taiwan hard alloy bar
The cutting speed and cutting depth are reduced, but the width of the cut seam of the tungsten steel plate is increased, that is, the amount of material damage per unit time is increased.Under the same pressure condition, the diameter of comparison is 0.1mm and 0.The cutting quality of the material processed by the 4mm nozzle is stillTungsten WeightIt is found that as the nozzle diameter increases, the slit becomes wider, the chip size becomes larger, and the slit quality (roughness) also significantly deteriorates.In order to better reduce costs, engineers and manufacturers continue to explore, and now Anhui impact resistant waterjet can effectively reduce costs to create greater profits.
The requirement is to work under high pressure conditions, but inlay ceramics or high alloys.The nozzle for cleaning the net cage cloth is generally a fan nozzle or a self-cleaning nozzle.2. Electronics.The large space of the large electronic factory is to be humidified and cooled, and the spray nozzle is used..The cleaning carbide bushing of electronic board has fan-shaped and wide-angle.The rosin nozzle after the circuit board is formed is to protect the circuit board very well, and the nozzle of Saigang can also be used..3. Thermal power plant.Large-flow nozzles such as silicon carbide nozzles and spiral nozzles are used for desulfurization and dust removal.
For customers' personalized orders, there are corresponding engineers to formulate more suitable product plans for you, so as to be considerate and professional..HAO Carbide Co., Ltd adheres to the concept of "Being dedication to work and treating others sincerely", and sincerely look forward to working with you for a win-win.
Well-known gasket manufacturers
But if the power is too small, it will cause the workpiece to be oxidized, so we must pay attention to the use of power when using this method for welding.When the fighter plane reaches the sky above the target, it launches quickly.The modern hard alloy cold heading die is different from before. It used to put a heavy fire. For example, the Tomahawk bullet can carry 450 kg of TN and high explosive..Modern fighters can't carry much. It has changed a new concept of striking the target. Instead of using the traditional one, it puts a metal rod made of metal tungsten. This is the tungsten rod..
2. Flip type.The clamp has a supporting surface in the price direction. During processing, you can flip it by hand to each need to be drilled with confidence.This style of cemented carbide bushing is suitable for drilling small workpieces, not suitable for large or large-scale workpieces.If you want to drill, you need to consider which style to choose.3. Cover type.Free drilling template without clamping concrete. When using, install the drilling template directly on the positioning reference surface of the workpiece, which is suitable for drilling small holes on larger workpieces..
We firmly believe that cooperating with "HAO Carbide Co., Ltd " is your no regrets choice.The company insists on creating high-quality cemented carbide products with high-precision talents and high-precision technical equipment, and is determined to establish my country's cemented carbide national brand and make Zhuzhou manufacturing famous all over the world.
The company insists on innovation and development, develops new products with new technology and high rate, especially in the field of non-standard, special-shaped and cemented carbide materials, and establishes an influence, with strong supply capacity, fast delivery guarantee, and stable product quality. Global customer demand
Taiwan hard alloy bar
The grille should be replaced according to the actual cutting accuracy requirements. A grille that is too badly damaged will easily affect the cutting accuracy..Moving and flipping the workbench grid can extend its service life and reduce usage costs.Tungsten steel plate manufacturers summarize the daily problems encountered in waterjet cutting, which is also a good habit of using equipment, and can further reduce the cost of use.3Does waterjet cutting require fixtures?From a mechanical point of view, the material only bears the force in the vertical direction during the waterjet cutting process, and the force in the horizontal direction is very small..
If the damage is caused by the tissue stress, then the external environment and conditions of the processing equipment should be controlled first to reduce the possibility of damage; if it is caused by the mechanical stress, the use of the material itself should be considered As well as the possible external processing environment, etc., these are all good things to pay attention to.In order to prevent the roll from breaking, attention should be paid to reducing residual stress, organizational force and thermal stress during processing and use, and different planning considerations should be made in consideration of the needs of different processing environments..This is the matter to be considered when using cemented carbide bushings. You can also have a basic consideration when using it to see if it can meet your actual processing needs and reduce the possibility of fracture..
Method and process for eliminating shrinkage and porosity of vacuum smelting master alloy bars [CNC Carbide Inserts]
The invention belongs to the technical field of smelting, and specifically relates to a method for eliminating shrinkage and porosity of a vacuum smelting master alloy bar.
Background technique:
During the casting and solidification of the master alloy, when the molten metal is poured into the ingot mold, since the temperature of the ingot mold where the master alloy is poured is significantly lower than the temperature of the molten metal, the temperature of the molten metal is quickly transferred to the ingot mold, which is close to the inner surface of the master alloy steel ingot mold. The molten metal solidifies rapidly, and the way the ingot solidifies is from the outside to the inside.The volume of the alloy shrinks during the solidification process, and shrinkage and porosity often appear at the last solidified part (center) of the master alloy.
When the master alloy is solidified, there is no continuous replenishment of molten metal above, and an open shrinkage cavity is formed in the head of the master alloy, which is a primary shrinkage cavity.The primary shrinkage cavity is usually through the use of an insulation riser to heat the solidified molten steel on the head to reduce the depth of the shrinkage cavity. After the ingot is cooled, the cap mouth is removed, which does not affect the internal quality of the alloy, but reduces the alloy yield rate. In the middle, the holes formed by the shrinkage of the final solidified part cannot be supplemented by the surrounding molten metal. A closed shrinkage cavity is formed inside the master alloy ingot, which is a secondary shrinkage cavity..Conventional casting method cannot eliminate secondary shrinkage.After the vacuum smelting master alloy is poured, there are often two problems in the ingot: one is that the primary shrinkage cavity is located at the uppermost end of the master alloy ingot and the shrinkage cavity is deep, and sometimes the depth of the shrinkage cavity even reaches 1/3 of the height of the master alloy. 1/2.The second is that the secondary shrinkage cavity exists inside the alloy ingot, which is continuous or discontinuous and cannot be removed.
Technical realization elements:
In view of the above-mentioned problems and deficiencies in the prior art, the present invention provides a method for eliminating shrinkage and porosity in vacuum smelting master alloy bars.
In order to achieve the above objectives, the present invention provides the following technical solutions:
A method for eliminating shrinkage and porosity in vacuum smelting master alloy bars. The method is carried out according to the following steps:
Step 1: Prepare the alloy raw materials according to the calculated batching list and load them into the melting crucible;
Step 2: Melt Tungsten Carbide Rods Crucible smelting for baking process and furnace washing process, the furnace washing process uses pure nickel or the same steel return material to wash the furnace;
Step 3: Baking and degassing the alloy raw materials;
Step 4: Bake the funnel brick and the shunt brick for 2 hours at 400C respectively;
Step 5: Use an annular heating furnace to heat the mold in the ingot chamber of the vacuum induction furnace;
Step 6: Smelt the alloy raw materials in the melting crucible under the condition of vacuum degree <4Pa to obtain alloy liquid;
Step 7: Pour the alloy liquid in step 6 into the mold;
Step 8: The mold is cooled and released. After the alloy liquid in the mold is fully solidified, the mold is demolded.
Further, in step 1, the melting crucible used is a magnesia or aluminum molding crucible.
Further, in step 5, the heating temperature of the casting mold is 600-650C.
Furthermore, in step 6, the process of smelting the alloy is divided into a melting period, a refining period and an alloying period. The melting period is to start with low power transmission, then gradually increase the power, increase the temperature in stages, and finally send the high power to the point The alloy raw materials are melted; the refining period is when the molten pool liquid level should remain calm, not bubbling, and the liquid level shall not turn over after the alloy raw materials are melted; the alloying period is when other required alloy elements are added to the alloy raw materials to be melted. Stir the molten pool to homogenize the alloy composition in the molten pool.
Further, in step 7, the superheating temperature of the alloy liquid is 100C-120C.
Further, in step 8, the cooling time of the mold is 10-15 minutes.
Compared with the prior art, the beneficial effects of the present invention are:
The invention is in vacuum inductionTungsten WeightThe ring heating furnace is used in the furnace to heat the mold. Because the mold is heated, when the alloy liquid is poured into the mold, the cooling and solidification rate of the alloy liquid in the mold is reduced, the fluidity of the molten metal is increased, and the surface of the ingot is smooth. The interior solidifies uniformly. During the solidification process, the casting speed is controlled according to the working conditions, so that the alloy liquid inside the mold solidifies from bottom to top, and the upper unsolidified alloy liquid supplements the lower solidification shrinkage, so that the solidified part of the master alloy is fully supplemented by the surrounding alloy liquid , The internal structure of the produced master alloy is dense, without holes, shrinkage and looseness.
Description of the drawings
Figure 1 is a schematic diagram of a longitudinal section of a master alloy with secondary shrinkage cavity without mold heating;
Figure 2 is a schematic diagram of the longitudinal section structure of the master alloy without secondary shrinkage after the mold is heated;
Figure 3 is a schematic diagram of the transverse macrostructure of the master alloy with secondary shrinkage cavity without mold heating;
Figure 4 is a schematic diagram of the transverse macrostructure of the master alloy without secondary shrinkage after the mold is heated.
Detailed ways
The present invention will be described in detail below through specific embodiments.
A method for eliminating shrinkage and porosity in vacuum smelting master alloy bars. The method is carried out according to the following steps:
Step 1: Prepare the alloy raw materials according to the calculated ingredient list and put them into the melting crucible, the melting crucible is magnesium or aluminum forming crucible;
Step 2: Smelt the crucible for the baking process and the furnace washing process. The furnace washing process uses pure nickel or the same steel return material to wash the furnace;
Step 3: Baking and degassing the alloy raw materials;
Step 4: Bake the funnel brick and the shunt brick for 2 hours at 400C respectively;
Step 5: Use an annular heating furnace to heat the mold in the ingot chamber of the vacuum induction furnace, and the heating temperature of the mold is 600-650C;
Step 6: Melt the alloy raw materials in the melting crucible under the condition of vacuum degree <4Pa to obtain the alloy liquid. The process of melting the alloy is divided into the melting period, the refining period and the alloying period. The melting period starts with low power transmission, and then Gradually increase the power, increase the temperature and melt in stages, and finally send the high power to the alloy raw materials to melt; the refining period is when the alloy raw materials are melted, the molten pool should remain calm, not bubbling, and the liquid surface should not turn over; alloying The expectation is that after adding other required alloying elements to the alloy raw materials, stirring the molten pool makes the alloy composition in the molten pool uniform;
Step 7: Pour the alloy liquid in step 6 into the mold, and the superheat temperature of the alloy liquid is 100��C-120��C;
Step 8: After the mold is cooled for 10-15 minutes, it is released. After the alloy liquid in the mold is fully solidified, the mold is demolded to obtain the master alloy.
Example 1
(1) Name of smelted alloy: K418.
(2) Ingredients: do ingredients and charge according to the calculated ingredients list.
(3) Preparation for smelting: 1) The smelting crucible adopts magnesia or aluminum molding crucible;
2) The crucible is baked and the furnace is washed, and the furnace washing process uses pure nickel or the same steel return material to wash the furnace;
3) Baking of raw materials: Baking and degassing the above raw materials of Ni, Co, Cr, W and Mo respectively;
4) Baking of refractory materials: hopper bricks and shunt bricks are respectively baked at 400C for 2 hours;
5) The ring heating furnace is used to heat the mold in the ingot chamber of the vacuum induction furnace, and the heating temperature of the mold is 600
(4) Vacuum smelting: smelt the alloy raw materials in the smelting crucible under the condition of vacuum degree<4Pa to obtain the alloy liquid. The process of smelting the alloy is divided into the melting period, the refining period and the alloying period. The melting period starts with low power delivery Then, the power is gradually increased, the temperature is increased in stages, and finally the high power is sent to the alloy raw materials to melt; the refining period is when the alloy raw materials are melted, the molten pool should be kept calm, not bubbling, and the liquid surface should not turn over. ; The alloying period is after adding other required alloying elements to the alloy raw materials, stirring the molten pool to homogenize the alloy composition in the molten pool.
(5) Pouring: When the temperature of the molten pool is appropriate, the molten pool can be charged after stirring. When the alloy liquid temperature is overheated by 100, turn the crucible to pour the alloy liquid into the funnel and pour into the mold according to the shunt plate.
(6) After the mold is cooled for 10 minutes, it is released. After the alloy liquid in the mold is fully solidified, the mold is demolded to obtain the master alloy.
Example 2
(1) Name of smelted alloy: K418.
(2) Ingredients: do ingredients and charge according to the calculated ingredients list.
(3) Preparation for smelting: 1) The smelting crucible adopts magnesia or aluminum molding crucible;
2) The crucible is baked and the furnace is washed, and the furnace washing process uses pure nickel or the same steel return material to wash the furnace;
3) Raw material baking: the above raw materials Ni, Co, Cr, W and Mo are baked and degassed;
4) Baking of refractory materials: hopper bricks and shunt bricks are respectively baked at 400C for 2 hours;
5) The ring heating furnace is used to heat the mold in the ingot chamber of the vacuum induction furnace, and the heating temperature of the mold is 620.
(4) Vacuum smelting: smelt the alloy raw materials in the smelting crucible under the condition of vacuum degree<4Pa to obtain the alloy liquid. The process of smelting the alloy is divided into the melting period, the refining period and the alloying period. The melting period starts with low power delivery Then, the power is gradually increased, the temperature is raised and melted in stages, and finally the high power is sent to the alloy raw materials to melt; the refining period is when the alloy raw materials are melted, the molten pool should remain calm, not bubbling, and the liquid surface should not turn over. ; The alloying period is after adding other required alloying elements to the alloy raw materials, stirring the molten pool to homogenize the alloy composition in the molten pool.
(5) Pouring: When the temperature of the molten pool is appropriate, the molten pool can be charged after stirring. When the alloy liquid temperature is over 110 turn the crucible to pour the alloy liquid into the funnel, and then pour into the mold according to the shunt plate..
(6) After the mold is cooled for 13 minutes, it is released. After the alloy liquid in the mold is fully solidified, the mold is demolded to obtain the master alloy.
Example 3
(1) Name of smelted alloy: K418.
(2) Ingredients: do ingredients and charge according to the calculated ingredients list.
(3) Preparation for smelting: 1) The smelting crucible adopts magnesia or aluminum molding crucible;
2) The crucible is baked and the furnace is washed, and the furnace washing process uses pure nickel or the same steel return material to wash the furnace;
3) Baking of raw materials: Baking and degassing the above raw materials of Ni, Co, Cr, W and Mo respectively;
4) Baking of refractory materials: hopper bricks and shunt bricks are respectively baked at 400C for 2 hours;
5) The ring heating furnace is used to heat the mold in the ingot chamber of the vacuum induction furnace, and the heating temperature of the mold is 650.
(4) Vacuum smelting: smelt the alloy raw materials in the smelting crucible under the condition of vacuum degree<4Pa to obtain the alloy liquid. The process of smelting the alloy is divided into the melting period, the refining period and the alloying period. The melting period starts with low power delivery Then, the power is gradually increased, the temperature is increased in stages, and finally the high power is sent to the alloy raw materials to melt; the refining period is when the alloy raw materials are melted, the molten pool should be kept calm, not bubbling, and the liquid surface should not turn over. ; The alloying period is after adding other required alloying elements to the alloy raw materials, stirring the molten pool to homogenize the alloy composition in the molten pool.
(5) Pouring: When the temperature of the molten pool is appropriate, the molten pool can be charged after stirring. When the alloy liquid temperature is overheated by 120, turn the crucible, pour the alloy liquid into the funnel, and pour into the mold according to the splitter plate..
(6) The mold is released after cooling for 15 minutes. After the alloy liquid in the mold is fully solidified, the mold is demolded to obtain the master alloy.
The improvement effect comparison diagram of the improved master alloy shrinkage cavity is shown in Figure 1 to Figure 4, and the production effect comparison of the improved master alloy is shown in Table 1..
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