【Know Tungsten】Sodium Tungstate Hydrothermal Synthesis Tungsten Trioxide

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Sodium tungstate hydrothermal synthesis tungsten trioxide uses sodium tungstate dehydrate solution and sodium chloride as raw material in reaction still to produce tungsten trioxide.

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【Know Tungsten】What is Tungsten Carbide Button

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Tungsten carbide button is an extremely hard alloy made from tungsten carbide and binders that offers high wear resistance as well as good corrosion resistance.

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【Know Tungsten】Tungsten Applications in Lighting Industry

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About 4-5% of annual worldwide tungsten production is consumed by the lighting industry. The largest market is still for incandescent lamps. However, more than 70% of artificial lighting is today generated by fluorescent lamps and this portion is steadily increasing. Modern production units can produce more than 6000 lamps per hour. Tungsten is used in the forms of wires, coils, and coiled coils in incandescent lamps, and as electrode in low-and high-pressure discharge lamps.

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【Know Tungsten】Tungsten Crucible Types

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In accordance with different manufacturing processes, tungsten crucible are mainly pided into forging tungsten crucible, sintering tungsten crucible, spinning tungsten crucible and stamping tungsten crucible. This is attributed to many of advantages of tungsten, such as high melting point, high boiling point, small coefficient of thermal expansion, and so on. 

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【Know Tungsten】Native Tungsten Carbide Powder

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Native tungsten carbide powder refers to WC prepared from native tungsten powder and carbon, black hexagonal crystals with metallic luster, is main raw material for producing hard alloy.

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【Know Tungsten】Measures to Improve Green Strength of Tungsten Carbide

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Traditional means of presintering and the wax infiltration can increase the green strength. Through years of technological innovation, a variety of production processes have been developed, such as warm compaction process, high-speed compaction, etc.

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【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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