|
Material Name |
Tungsten |
|
Molecular Formula |
W |
|
CAS.No |
7440-33-7 |
|
Molecular Weight |
183.84 |
|
Density |
19.3 g/cm3 |
|
Fusing Point |
3410 ℃ |
|
Boiling Point |
5660 ℃ |
|
Solubility (water) |
Mixed acid soluble in nitric acid and hydrofluoric acid. Fused with a mixture of sodium hydroxide and sodium carbonate. Slightly soluble in nitric acid, sulfuric acid, aqua regia; Insoluble in water, hydrofluoric acid, potassium hydroxide. Soluble in nitric acid, hydrofluoric acid. |
Because tungsten particles have many unique properties and uses, it is widely used in the industrial field.
1, the manufacture of superalloys and cemented carbide: tungsten particles are one of the important raw materials for the manufacture of superalloys and cemented carbide, which can enhance the hardness and corrosion resistance of the alloy.
2, manufacturing filament: Because tungsten particle has a high melting point and good electrical conductivity, it is used as a filament for manufacturing light bulbs, can withstand high temperatures and high currents.
3, the manufacture of electronic tubes: tungsten particles can also be used to manufacture electronic tubes as cathode materials.
4, manufacturing tools: Because tungsten particles have high hardness and corrosion resistance, it is used as a tool head for manufacturing drills, milling cutters and turning tools.
