Tungsten carbide seal is made from high-hardness refractory metal micron tungsten carbide powder as the main component and the binder of cobalt or nickel. Tungsten carbide seal is hard-surfaced materials with a large amount of friction material in the mechanical seal with good abrasion resistance, high flexural strength, high thermal conductivity and small expansion coefficient.

Many people want to know which weight of dart barrel is the most common one, and what's its average weight. Actually，there is no clear answer.

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

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.

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.

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. 

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.

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.

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