Production and use of cast forsterite concrete blocks

Abstract

The slag crust consisted of 12-17% corundum, 20-23% of glassy and crystalline substances, 7-8% of spinel, 8-12% of gehlenite, 13-151 of calcium hexaaluminate, 28-30~ calcium dialuminate.The slag crust and the covering layer under it contained 2-3% metal.The new high-alumina mass was used to Gunite both high-alumina and silica--clay bucket linings.The average increment on the resistance of the lining of 180-ton steel-casting buckets as a result of using gunniting for 209 bucket campaigns was 2.88 smeltings. CONCLUSIONSThe composition for a high-alumina gunniting mass with an A1203 concentration of~65% was developed on the basis of chamotte obtained by firing the natural raw material.The production of the high-alumina gunniting mass was organized at the Semiluksk Refractory Plant.