features:
A, refractoriness
High alumina brick than clay refractoriness and half silica brick are high refractoriness, 1750-1750 ℃, belongs to high-grade refractory materials.
B, refractoriness under load
Al2O3 high because of high aluminum products, miscellaneous quality, forming a fusible vitreous less, so the refractoriness under load is higher than clay brick, but not because of mullite crystal form reticular tissue, so the silica refractoriness under load is still not high.
C, slag resistance
Al2O3 more high alumina brick, close to neutral refractory, slag resistance to acid and alkaline slag erosion, due to containing SiO2, so the ability of resistance to basic slag than weak ability to resist acid slag.
usage:
Mainly used in lining of blast furnace, the hot blast stove, electric furnace roof, furnace and reverberatory furnace, rotary kiln lining.In addition, high alumina brick heat type checker brick, the pouring system with plug head, nozzle brick, etc.
