HEATING METHOD FOR REFRACTORY MATERIAL AND REFRACTORY

摘要

PURPOSE: To provide a method for uniformly and quickly heating a refractory raw material and to obtain a refractory material having excellent mechanical characteristics and corrosion resistance by using the heating method. ;CONSTITUTION: (1) A green refractory material obtained by compounding refractory raw materials at prescribed ratios and kneading and forming the mixture is heated or baked with microwave having frequency of 20-50GHz. (2) An oxide- based refractory or a carbon-containing refractory is produced by heating or baking with microwave having frequency of 20-50GHz. The heating process for the production of a refractory can be shortened to improve the productivity of refractory and reduce the production cost. The strength and corrosion resistance of refractory can be improved and the operation cost can be reduced by the prolongation of the life of steel-making refractory to reduce the material consumption and unit cost and decrease the mending frequency.;COPYRIGHT: (C)1994,JPO