【Know Tungsten】Tungsten Contact Applications

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Tungsten contact is used in the switch to connect or disconnect the circuit. Tungsten contact has a wide range of applications, covering all fields, such as industry, agriculture, science, technology and national defense as tungsten has the advantages of smooth surface, high hardness, high abrasion resistance, excellent resistance to arc erosion, strong ability to interrupt current, small thermal expansion coefficient and low vapor pressure.

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【Know Tungsten】Tungsten Carbide Powder Producing Process

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Tungsten carbide powder producing process includes several major steps, namely ingredients calculation, mixing, carbonizing and milling of materials.

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【Know Tungsten】Tungsten Copper Activated Liquid Phase Sintering

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Tungsten copper activated liquid phase sintering can improve the miscibility between tungsten and copper and promote the sintering process by means of adding a small amount of Co, Ni, Fe, Pd and other activated elements.

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【Know Tungsten】Tungsten Copper Mechanical Alloying

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Tungsten copper mechanical alloying is a kind of sintering method by high-energy ball milling.

Tungsten Powder + Copper Powder → High-energy Ball Milling (100 hours, Ar) → Sieving → Pressing (40% Relative Density, 1000~1300℃, H2, 1 hour) → Sintering.

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【Know Tungsten】Nanometer Tungsten Carbide Powder

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Nanometer tungsten carbide powder can be used as additive materials for high density alloy and tungsten bar and wire, as the combustible agent of explosive industry.

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【Know Tungsten】Tungsten Powder Applications

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Tungsten powder application is very wide, tungsten powder is the main raw materials of tungsten products and tungsten alloys. 

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【Know Tungsten】Tungsten Copper Co-reduction

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Tungsten copper co-reduction process is a kind of method sintering in reductive atmosphere after mixing tungsten and copper oxides powder, pressing and forming.

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【Know Tungsten】Tungsten Powder Producing Method

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Early tungsten powder producing method including hydrogen and carbon reduction method, and new of high-energy ball milling, gas evaporation, plasma ect..

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【Know Tungsten】Tungsten Copper Infiltration

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Tungsten copper infiltration is to manufacture tungsten skeleton with density and strength, then filled in copper liquid under capillary force. And it can be divided into infiltrated Cu after high-temperature sintering skeleton and mix powder infiltration after low-temperature sintering.

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【Know Tungsten】Tungsten Powder National Standard

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Tungsten Powder National Standard GB/T 3458—2006(Instead of GB/T 3458—1982).

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