PRODUCTION OF REFRACTORY FOR CASTING

摘要

PURPOSE:To considerably enhance hot mechanical strength and to prevent the propagation of cracks in all directions while maintaining corrosion resistance. CONSTITUTION:Fireproof aggregate is prepd. as a base material and 0.2-8 pts.wt. bundles of carbonaceous or graphitic fibers having 0.05-1.0mm secondary fiber diameter and 0.5-10mm length obtd. by bundling single fibers are added to 100 pts.wt. of the base material. They are then kneaded and molded. The bundles are dispersed in the base material with satisfactory fillability and no directional property.