Used in polycrystalline silicon reduction furnace electrode insulating rings instead of alumina ceramic; with resistance to higher temperatures and bigger strength, far better stability of thermal shock resistance than alumina ceramic, the service life is more than ten times extended, so the production cost is largely reduced, the operation time is saved and the labor intensity is reduced accordingly.  

　　Sinoma Advanced Nitride Ceramics Co., Ltd. is a national-level high and new technology enterprise affiliated to China National Building Materials Group Co., Ltd. Ever since the 1970s, we have been committed to the research and production of advanced technical ceramics. We can meet the demands of different industrial fields and provide best solutions to customers.

　　Relying on the research findings and superior resources inherited from the original Shandong Industrial Ceramics Research & Design Institute Co., Ltd. and SINOMA Synthetic Crystals Co., Ltd., we have successively undertaken over 30 projects related to the national key scientific and technological research, the “863” high-tech program, military products, etc. and have obtained over 10 awards including a second prize for scientific and technological progress granted by China Building Material Federation, a total of 32 invention patents under application or authorized, and 1 American invention patent. So far, we have always followed the idea of “Creating Prosperity with Materials, Serve the Society with Science” and have been supplying the most suitable products and supporting services for customers in the fields like aviation, aerospace, high-end equipment manufacturing, solar energy, wind energy, chemicals and electronics.