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The materials of tungsten alloy with high specific gravity can be divided into tungsten nickel iron alloy, tungsten nickel copper alloy and tungsten molybdenum nickel iron alloy.
The main grades of tungsten nickel-iron alloy are: W90NiFe, W93NiFe, W95NiFe
Tungsten nickel-iron alloy is an alloy composed of a small amount of nickel, iron and other alloying elements added to tungsten as the matrix, which has the characteristics of high density (and adjustable, strong ability to absorb high-energy rays (1 3 higher than the ray absorption coefficient of lead), low thermal expansion coefficient (4 6 10-6), good plasticity, high strength and elastic modulus, machinability, and weldability. It is widely used in radiation protection and guidance (hyperlink), industrial counterweight parts (hyperlink), safety and defense parts (hyperlink), etc.
It is mainly used in the radiation protection and guidance industry, industrial counterweight parts, safety and defense parts, nuclear power and energy parts.
The main grades of tungsten-nickel-copper alloy are: W90NICU, WU93NICU, and WU95NICU
Tungsten-nickel-copper alloy is an alloy composed of a small amount of nickel, copper and other alloying elements added to tungsten as the matrix, which has the characteristics of non-magnetic, high density (and adjustable, strong ability to absorb high-energy rays (1 3 higher than the ray absorption coefficient of lead), low thermal expansion coefficient (4 6 10-6), machinability, and weldability. It is widely used in the field of radiation shielding and protection that is sensitive to the magnetic environment.
The main grades of tungsten-molybdenum-nickel-iron alloy are: 90wmonife
Tungsten-molybdenum-nickel-iron alloy is an alloy composed of a small amount of nickel, iron, molybdenum and other alloying elements added to tungsten as the matrix, which is produced by powder metallurgy.
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Tungsten alloy material is a kind of alloy with tungsten as the matrix (W content 85-99%) and added Ni, Cu, Co, Mo, Cr and other elements. According to the composition characteristics and uses of the alloy, it is divided into W-NI-FE, W-NI-CU, W-CO, W-WC-CU, W-AG and other main series, with a density of up to 16It is known as a high specific gravity alloy by the world, and it also has a series of excellent characteristics
Generally, the specific gravity is , the strength is high: the tensile strength is 700-1000MPa, the ability to absorb rays is strong: its ability is 30-40% higher than that of lead, and the thermal conductivity is large
5 times that of mold steel; The coefficient of thermal expansion is small: only 1 2-1 3 of iron or steel, good conductivity; It has good weldability and processability. In view of the above-mentioned excellent functions of high specific gravity alloys, it is widely used in aerospace, aviation, military, oil drilling, electrical instruments, medicine and other industries.
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Cemented carbide is the most common and main form of tungsten alloy, which is different from the previous tungsten alloys in that it is tungsten and carbon and cobalt, so it is also often called tungsten cobalt alloy. At present, the most widely used tools in the industrial field are basically tungsten carbide tools, so tungsten carbide, which is also known as "industrial teeth".
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High-specific gravity tungsten alloy is an alloy material composed of tungsten as the matrix material (of which the tungsten content is 85% and 99%) and a small amount of nickel (Ni), copper (Cu), iron (Fe), cobalt (Co), molybdenum (Mo), chromium (Cr) and other metal binders, also known as high-density tungsten alloy or heavy alloy [1]. The density of tungsten alloys with high specific gravity can be reached. The most commonly used ones are:
W-NI-CU and W-NI-FE series. This material has significant characteristics in physical properties such as density, strength, hardness, ductility, electrical and thermal conductivity, etc., so it has been widely used in the national defense industry, aerospace industry, medical industry, electrical industry and other industries.
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Tungsten alloy is a difficult deformable material, which has greater deformation resistance than single-phase alloy, but in terms of comprehensive strength properties, tungsten alloy is much better than single-phase alloy.
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Refractory metal materials
The alloy formed by adding other elements based on tungsten is an important class of refractory metal materials. In 1913, thorium-tungsten alloy was developed.
In 1922, anti-sagging tungsten wire was invented, high-density tungsten alloy was developed in 1935, and tungsten-rhenium alloy was developed in the 50s of the 20th century. Tungsten alloy material is widely used in electronics, electric light source, aerospace, military industry, machinery and metallurgy.
Tungsten steel (cemented carbide) has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance, especially its high hardness and wear resistance, even at a temperature of 500, it remains basically unchanged, and it still has a high hardness at 1000. >>>More
Tungsten carbide is an alloy material made by powder metallurgy process of hard compounds of refractory metals and bonded metals. Cemented carbide has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance, especially its high hardness and wear resistance, which basically remains unchanged even at a temperature of 500, and still has a high hardness at 1000. Tungsten carbide is widely used as tool materials, such as turning tools, milling cutters, planer cutters, drills, boring cutters, etc., for cutting cast iron, non-ferrous metals, plastics, chemical fibers, graphite, glass, stone and ordinary steel, and can also be used to cut heat-resistant steel, stainless steel, high manganese steel, tool steel and other difficult-to-machine materials.
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High-strength and high-conductivity copper alloys have three main advantages: >>>More
For NM500 wear-resistant steel plate, the chemical composition is more worthy of analysis. In fact, the traditional wear-resistant steel used in construction machinery is generally high manganese steel, although high manganese steel has the performance of work hardening, but it has a strong hardening ability after being subjected to impact stress during its use. Due to such a reason, it can only play its role under a large impact load, and the wear resistance of its hardness can not be improved for the working condition that the impact load is not large, in this case, the yield strength of high manganese steel is not high after work hardening, and the workpiece sometimes cracks when under the action of a large force, and it is difficult to achieve the expected service life, which is a fatal defect for machinery. >>>More