Tungsten crucible is one of the products of tungsten, which is mainly divided into sintering forming, stamping forming and spinning forming. It is formed by turning molybdenum bar and welding forming. It is made of pure tungsten plate, tungsten slice and pure tungsten bar through corresponding processing. Can be used in vacuum inert gas below 2600 degrees. Tungsten is widely used in rare earth smelting, quartz glass, electronic spraying, crystal growth and other industries due to its high melting point and boiling point, good high temperature strength, anti-friction and corrosion resistance, high thermal conductivity, small thermal expansion coefficient and good hardenability.