Applications of Silicon Carbide in Ceramics and Enamel Industry

Silicon carbide as refractory material is not only used in the field of ferrous metallurgy and powder metallurgy, but also applied effectively in ceramics and fine porcelain process because of its high thermal stability, high temperature, high strength, high thermal conductivity and other characteristics.

According to introduction, the fine porcelain industry is a major user of silicon carbide refractories, which is used to make tunnel kiln pillar and panel, the lining top and saggar.

The thickness and different sizes of panel and pillar depend on the size and type of burning products. Changing the size of the scaffolding parts reasonably, can improve the capacity of the kiln car. The thickness of SiC plate used for hollow porcelain products is 25 to 30 mm, and the thickness of SiC plate used for small abrasive products is 450 * 240 mm length, 22 mm thickness; When sintering heavy abrasive products, the thickness should be 40 mm.

Because SiC refractories are much more expensive than clay brick, only when its service life is higher than clay brick, its use effect can be economically reasonable. The service life depends greatly on the rationality of silicon carbide refractories production process, the suitable size of scaffolding components architecture, and its performance whether it is suitable to the condition and extreme temperatures.

For example, when sintering sanitary ceramics, high voltage electrical porcelain and abrasive products, the canopy frame of kiln car stands great load. Therefore, the strength of silicon carbide products is of great significance. The thermal stress is not big when sintering products, so people can use silicon carbide refractories with strong oxidation resistance. Sintering art fine porcelain products, daily-use porcelain, low voltage electric porcelain and high frequency porcelain, people should firstly consider whether silicon carbide refractories have high thermal stability.

To view more information about silicon carbide, please make contacts with the following two silicon carbide manufacturers: Qinyang Sanhui Refractory Material Co.,Ltd. and Yichuan Dongfeng Abrasives Co.,Ltd.