Jul. 10, 2017
Characteristics of DEM series mullite brick:
Mullite bricks characterized with high refractoriness that can reach more than 1790C. Load softening temperature is between 1600 ~ 1700℃. Compressive strength at normal temperature is 70 ~ 260MPa. Good thermal shock resistance.
Classification of DEM series mullite brick:
There are sintered mullite and fused mullite brick. The main raw material of sintered mullite brick is high bauxite clinker by adding a small amount of clay or raw bauxite as binder made through molding and sintering. The main raw material of fused mullite brick is high bauxite, alumina and refractory clay, by adding charcoal or coke fines as a reducing agent. After molding using the reduction method to manufacture.
The crystallization of fused mullite is larger than sintered mullite and thermal shock resistance is better than sintered products. The high temperature performance of CCEWOOL DEM series mullite brick is mainly relying on the amount of alumina content and the distribution uniformity of mullite and glass.