REFRACTORY LINING FOR FURNACE

摘要

PURPOSE:To provide a refractory lining of long life in a furnace where a large volume of gas or the like is blown in. CONSTITUTION:For the lining of a furnace where gas of the volume of >=20Nm<3>/H for each ton of molten iron or molten steel is blown in from the furnace bottom, (1) magnesia-carbon brick whose elastic modulus is <=140000kg/cm<2> and whose bending strength at 1400 deg.C is >=100kg/cm<2> or (2) alumina-spinel-silicon carbide-carbon brick whose elastic modulus is <=200000kg/cm<2> and whose bending strength at 1400 deg.C is >=100kg/cm<2> is used. This brick realizes the lining of high durability by which the heat shock resistance and the wear resistance are well balanced.