CALCAREOUS COATING MATERIAL FOR TUNDISH

摘要

PURPOSE:To provide a titled calcareous coating material which prevents the aggravation of environment owing to the generation of gas by oscillating a castable refractory material consisting of basic aggregate added with a powdery resin and anhydrous inorg. metallic salt, packing the material into the spacing between lining refractories and inside frame and curing said material. CONSTITUTION:The calcareous castable refractory material is prepd. by adding 2-8pts.wt. powdery thermosetting resin and 0.5-10pts. >=1 kinds of anhydrous inorg. metallic salts to 100pts. basic aggregate contg. lime clinker. Such refractory material is charged into the spacing between the lining refractories and inside frame and is packed therein under the oscillation applied thereto. The material is then heated and cured from the inside of the inside frame by the hot air from a burner, etc. and thereafter the inside frame is removed and the calcareous coating layer is thus formed on the surface of the lining refractories. The coating material obviates the aggravation of the working environment owing to the generation of gas and permits mechanical coating. The calcareous coating layer having the high effect of cleaning steel is formed.