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.;COPYRIGHT: (C)1994,JPO&Japio