Tungsten

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Aviation Application of Tungsten Alloy 237

Tungsten Alloy has become one of the essential materials for aviation industry because of its high density, wear resistance and good thermal conductivity. The development of aviation industry represents a country’s economic and scientific development level and is an important criterion for judging a country’s comprehensive national strength. Therefore, the Chinese government strongly supports the development of this industry. With the continuous improvement of China’s comprehensive national strength and the support of a large number of policies, the aviation industry…

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What Is Tungsten Trioxide? 250

Tungsten Trioxide, also known as tungsten anhydride (WO3), is a yellow powder, insoluble in water and alkali, and slightly soluble in acid. Because of its good optical, electrical and gas sensitive properties, it is widely used in life, chemical industry, medical treatment and military affairs. I. Physical Properties Appearance and properties: yellow or yellow-green powder Melting point (°C): 1472 Relative density (moisture = 1): 7.1 Boiling point (°C): 1837 Relative density (water = 1): 7.16 g/cm 3 Molecular formula:WO3 Molecular…

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What are the Uses of Tungsten Alloys? 250

Tungsten Alloy is an alloy produced by powder metallurgy with tungsten powder as main raw material and Fe, Ni, Co as binder. It has excellent properties such as high melting point, high hardness, high strength, high specific gravity, creep resistance, thermal conductivity and electrical conductivity, and is widely used. I. Aerospace Industry Rotor materials of gyroscopes, inertial rotating elements of aircraft, balance weight elements of ailerons, steering rudders, engines, rotating blades of helicopters, etc. II. Military Industry Small arrows bundled…

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Tungsten Alloy Characteristics 255

Tungsten Alloy is an alloy with tungsten as the main element and added with Ni、Cu、Co、Mo、Cr and other elements. It has a series of excellent characteristics: the density is as high as 16.5-19.0 g/cm3; The specific gravity is 16.5-18.75 g/cm3. The tensile strength is 700-1000 MPa. Strong ability to absorb rays, 30-40% higher than lead; The thermal conductivity is 5 times that of die steel. The coefficient of thermal expansion is small, only 1/3-1/2 of iron or steel; Good weld ability…

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Brief History of Tungsten Alloy Development 309

The climax of research on the brief history of tungsten alloy development is mainly divided into the following four stages: The climax of the first research was from the Second World War to the middle and late 1980s. Politically, NATO and Warsaw Pact, led by the United States and the Soviet Union, had a cold war, and the East and the West were confronted with each other, which made the world political situation grim. In science and technology, the third…

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Spherical Tungsten Powder 278

As an important intermediate product of transition metal tungsten, tungsten powder (W) is often used to produce tungsten products such as tungsten oxide, tungstate, tungsten carbide, tungsten rod, and tungsten bar due to its strong reducibility. However, due to the different particle shapes of W powder, the physical and chemical properties and specific uses of tungsten products are also different. According to different particle shapes, W powder can be divided into spherical tungsten powder and irregular tungsten powder. The following…

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The Reason Why Spherical Tungsten Powder Is Processed by 3D Printing 260

As an important raw material for tungsten production, the physical and chemical properties of spherical tungsten powder (W) directly affect the quality and use of tungsten products. Under normal circumstances, the higher the purity of the powder, the lower the oxygen and carbon content, the better the thermodynamic properties of tungsten processing materials. However, the physical and chemical properties of the powder are not the only factor that determines the quality of tungsten products. The performance of tungsten parts is…

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What Is the Use of 3D Printing Tungsten 260

Compared with the powder metallurgy method, the tungsten parts produced by 3D printing technology not only have richer shapes, but also have higher comprehensive properties such as shielding performance and high temperature resistance, which also makes them more useful. The main uses of 3D printing tungsten are as follows: 1) Manufacturing medical collimators. Compared with metallic lead, tungsten alloy is more suitable for the production of collimators, not only because the alloy is environmentally friendly and non-toxic, but also has…

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What Are the Post-treatment Processes for 3D Printed Tungsten Products 283

3D printing technology (additive manufacturing) can not only print organic materials such as nylon, plastic, resin, but also stainless steel, aluminum alloy powder, titanium alloy powder, and tungsten alloy powder. As far as tungsten powder is concerned, although additive manufacturing can effectively make up for the shortcomings of powder metallurgy technology, such as the inability to manufacture complex-shaped parts and general product performance, it does not mean that the products manufactured by this method are flawless. Applications in some areas…

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What’s Tungsten Fine Mud? 203

The content of tungsten trioxide in tungsten fine mud is between 20% and 40%; the particle size is below 74 microns, of which about 10% of the metal content is less than 10 microns; it is associated with molybdenum, bismuth, copper, iron and other sulfide ore and tin Stone, etc.; is known as hard-to-select tungsten materials; it has the characteristics of low tungsten content, fine particle size, large specific surface area, high surface energy, mixed components, and difficult to recycle.…

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