High Strength Tungsten Alloy Crucible For Quartz Glass Melting Furnace

Since the melting point of tungsten is as high as 3410 ° C, tungsten crucible is widely used in the core container of sapphire single crystal growth furnace, quartz glass melting furnace, rare earth smelting furnace and other industrial furnaces, and its working temperature environment is generally above 2000 ° C. Especially for sapphire single crystal growth furnace, tungsten crucible with high purity, high density, no internal cracks, accurate size, smooth inner and outer walls, etc., plays a key role in the growth process of sapphire crystal seed success rate, crystal pulling quality control, decrystallization sticking pot and service life.

As a kind of tungsten metal products, tungsten crucible has some very excellent properties, such as a high melting point, a high boiling point, a strong anti-friction resistance and the coefficient of thermal expansion is very small. Nowadays, tungsten crucible is widely used in rare earth smelting, quartz glass, electronic spraying and other industries. The purity of its tungsten is above 99.95% , its density is above 18.5g / cm3 and the maximum application temperature environment is 2400 ℃.

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