고알루미나 내화벽돌의 미네랄 성분과 특성은 무엇입니까??

High alumina fire brick is a refractory material with excellent performance. 내화성이 높다, good wear resistance, 화학적 안정성. It is suitable for the construction and repair of various high-temperature industrial furnaces.

Mineral composition of high alumina fire brick

High-alumina fire brick is mainly composed of high-alumina bauxite containing hydrous alumina minerals (monophane, gibbsite, 등.): sillimanite group minerals (including kyanite, 홍주암, 규암, 등.); Artificial synthetic raw materials, such as industrial alumina, synthetic mullite, fused corundum, 등.

Characteristics of high alumina refractory bricks

1. 내화성
   The refractory resistance of 고알루미나 벽돌 is higher than that of clay bricks and semi-silica bricks, reaching 1750~1790℃, a high-grade refractory material.

2. Load softening temperature
   Because high-aluminum products have high AI203, low impurities, and less fusible glass, the load-softening temperature is higher than that of clay bricks. 하지만, because the mullite crystals do not form a network structure, the load-softening temperature is still not as high as that of silica bricks.
3. 슬래그 저항성
   High alumina bricks contain more AI203, which is close to neutral refractory materials and can resist acidic and alkaline slag erosion. Because it contains Si02, its ability to resist alkaline slag is weaker than that of acidic slag.