Classification of alumina ceramics

High purity type and common type. High-purity alumina ceramics are ceramic materials with Al2O3 content above 99.9%. Due to its sintering temperature as high as 1650 -- 1990℃ and transmission wavelength of 1 -- 6 m, they are generally made of fused glass to replace platinum crucible: using its light transmittance and alkali resistance metal corrosion as sodium lamp tube; In the electronics industry, it can be used as integrated electric subgrade board and high frequency insulation material. Ordinary alumina ceramic system is divided into 99 porcelain, 95 porcelain, 90 porcelain, 85 porcelain and other varieties according to the content of Al2O3, sometimes Al2O3 content in 80% or 75% also classified as ordinary alumina ceramic series. Alumina ceramics widely used in various industries, textiles, photoelectric, semiconductor, automotive, machinery, solar energy and other important applications. Smile has the most complete alumina production line, from raw material preparation to final processing and inspection, all of which are produced by ourselves. It also has the most complete alumina materials, covering various purity grades from 80%, 95%, 99%, 99.5%, 99.99%.