The production process of fused mullite brick is similar to that of fused zirconium corundum brick. It is made by melting raw materials, casting and molding, heat treatment and machining. Fused mullite brick can be used more and more because it has the following remarkable characteristics
1. The content of mullite phase in the structure is high, more than 70%, which is uniform fibrous and has good thermal shock resistance and stability
2. High density, low porosity, 2-4%, much lower than zirconium mullite brick and chromium oxide brick, with excellent corrosion resistance
3. The compressive strength is extremely high, greater than 350Mpa, the load softening temperature is greater than 1700 ℃, the compactness is very good, and the erosion performance of naimo box is excellent
4. The change rate of reheating line is low, which ensures the good integrity of masonry structure
