SiO2 % ≥
Al2O3 % ≤
Fe2O3 % ≤
Cold crushing strength Mpa ≥
Apparent porosity % ≤
Creep reate 0.2MPa 1500℃ 50h % ≤
Apparent density g/cm3 ≤
Thermal expansion 1000℃ % ≤
Residual quartz % ≤
Refractoriness under load T0.6 ℃ ≥
Silica bricks are made from silica≥ 96%, adding mineralizers and binders, and going through processes such as mixing, molding, drying, and sintering.
Silica brick is an acid refractory material with strong resistance to acid or erosion.
The high soft temperature is an excellent characteristic of silica brick, generally 1640~1680℃.
Silica bricks are mainly used to build the carbonization chamber, combustion chamber and partition walls of coke ovens (about 73% of the refractory materials used in a coke oven are silica bricks), the kiln roof, pool walls, and high temperature load-bearing parts of hot blast stoves. , carbon roasting furnace and other thermal kilns