Tungsten crucibles belong to one of metal tungsten products, and are mainly divided into sinter molding (applied to powder metallurgy technology), impact molding and spin molding. Tungsten crucibles are formed by performing corresponding processes on pure tungsten plates, tungsten sheets and pure tungsten bars by turning molding (generally applied to relatively small dimensions) of tungsten bars, welding molding and many other methods. Tungsten crucibles can be used in vacuum inert gases at the temperature of lower than 2,600℃. Tungsten features high melting point and boiling point, good high-temperature strength, wear and corrosion resistance, large thermal conductivity, small thermal expansion coefficient and good hardenability. Tungsten crucibles are widely applied to rear earth metallurgy, quartz glass, electronic spraying, crystal growth and other industries.
Tungsten features high melting point and boiling point, good high-temperature strength, wear and corrosion resistance, large thermal conductivity, small thermal expansion coefficient and good hardenability. Benefiting from such excellent features, tungsten crucibles are widely applied to rear earth metallurgy, quartz glass, electronic spraying, crystal growth and other industries.
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