Sapphire Dan Changjing Furnace Vacuum System

In particular to a Sapphire Dan Changjing furnace vacuum system, belonging sapphire technology.That AL2O3 sapphire single crystal, with a high melting point, high hardness, good thermal conductivity, wide band through optical, electrical insulation, resistance to acid and alkali corrosion, etc., so as an important technical crystalline material, is widely used in defense, military, scientific research and a series of high technology fields, while in civilian industry also has a large number of applications, such as light emitting diodes, microelectronic circuits, optical transmission emotional, optical waveguide devices and LED energy saving.

Sapphire crystal has a variety of production methods: Czochralski method (Czochralski crystal pulling), Kyropoulos (long grain Kjeldahl method) and temperature gradient method and other methods. But no matter of what kind of growth method, crystal growth needs to be net pumping air furnace body, a certain degree of vacuum only after the furnace is heated, the crystal raw material in the furnace after the temperature reached 2050 ° C begins to melt, and other raw materials is completely melted, there is a row of mixed melt process, before it would be crystal growth, crystal growth after the end, the need to gradually cooled until it cools completely finished. In this series of process, the furnace insulation materials, the melt crystals emit a large amount of impurities and gases exhaust the furnace if not, it will affect the quality of the crystal, which requires Sapphire Dan Changjing vacuum furnace systems by These impurities and the vacuum system of the furnace exhaust gases. The quality of the vacuum system to a stable relationship Sapphire Dan Changjing the safe operation of the furnace and the production of the crystal quality. The original design of the vacuum system used in pull-out flapper valve and metal oil diffusion pump. Metal oil diffusion pump works by heating the plate on the bottom of the vacuum oil diffusion pump for heating, vacuum oil into a heated oil vapor, oil vapor ejector use role will be within the vacuum pipe to expel air molecules and impurities outside. Heating plate damage often occur due to the interruption caused by the heating furnace Dan Changjing Sapphire crystal growth process is stopped, causing great loss. While the vacuum oil vapor will contaminate Sapphire Dan Changjing furnace furnace. This requires a secure and reliable vacuum system structure, to ensure the stability of the entire crystal growth process.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

• < Prev
• Next >