PRODUCTION OF SPINEL-ALUMINA FIRED BRICK

摘要

PURPOSE:To provide a brick material free from carbon and chromium and excellent in spalling and corrosion resistance. CONSTITUTION:A blend based on 10-60wt.% alumina having <1mm diameter and 40-90wt.% MgO-Al2O3 type spinel in which granules having >=1mm diameter account for >=60% is kneaded, press-molded and fired. The resulting spinel- alumina fired brick contributes toward making high-grade steel because it is free from carbon and environmental problem is solved because the brick is free from chromium.