Largest Tungsten Crucible Made Sapphire Production

Fujian, China one Chinese company is high-tech manufacturing company which engaged in sapphire crystal growth and its subsidiary products processing. This company last year invested 60 million RMB to introduce 10 sets sapphire growth furnace, and this year formally put into production in batches. It expected to achieve annual output value of 50 million RMB.

Tungsten crucible is an important component in sapphire growth furnace. The quality of tungsten crucible largely affects the quality and application range of sapphire. The following will detail describe crucible tungsten.

Tungsten crucible is one of tungsten products usually using powder metallurgy method to produce. It has a lot of excellent properties, such as high melting point, high boiling point, high strength, corrosion resistance and so on, which are widely used in sapphire growth furnace, quartz glass melting furnace, rare earth smelting furnace, as the core container industry of the furnace. For sapphire single crystal growth, tungsten crucible has a high purity, high density, crack-free, precise size, smooth inner and outer walls and other features is conducive to produce high performance sapphire single crystal. Sapphire has high hardness (Mohs hardness 9), only second to diamond. It has good transparency, high hardness, wear resistance, high temperature resistance properties, good thermal conductivity and electrical insulation and other properties. Currently sapphire as an important new material, which is generally as rosy window materials, LED substrate, laser matrix, optical components, watches and mobile phones’ touch cover and is widely used in science and technology field, military field, electronics industry and other industry. Sapphire has stable chemical and physical property, the applications range of in the industry is gradually expanding. With the growth and development of sapphire industry, tungsten crucible will be developed to a certain extent in the future.

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