silicon carbide brick

Silicon Carbide Brick

Silicon Brick belongs to acid refractory materials with properties of good acid erosion resistance, good thermal conductivity and high refractoriness under load. Silicon Bricks can service in the high temperature of over 1620℃. Its thermal conductivity can rise with the rising of service temperature. There is no linear after contraction. Silicon Brick’s bulk can rise with the temperature rising in the process of baking oven. Silicon bricks are the better refractory products for coke oven. Silicon Bricks can be used to build the combustor, chute and regenerative chamber of coke oven.

Description for Silicon Brick for sales

In the process of baking oven, the maximum expand of silicon bricks happen between 100~300℃. The expansion quantity under the 300℃ account for 70%~75% of total expansion quantity. Because there are four crystal form transition points of 117℃, 163℃, 180~270℃ and 573℃ for SiO2. Of which, the bulk expand caused by cristobalite between 180~270℃ is maximum.

The true density decides the thermal conductivity of silicon bricks. And it is the one of most important mark for deciding silicon bricks’ quartz transform. Its true density is lower, its lime transform is more complete. The linear after-expansion is lower in the process of baking oven.

In the silicon bricks, the true density of quartz crystal is lowest, linear expansivity is low, its thermal stability is better than quartz, high slag erosion resistance, good thermal conductivity, high temperature refractoriness under load, better bulk stability.