PRODUCTION OF TUNDISH GATE

摘要

PURPOSE:To obtain a tundish gate without the aggravation of working environment owing to the generation of gas by applying oscillation to a cartable refractory material consisting of a calcareous refractory material added with a powdery resin and anhydrous inorg. binder thereby packing the material into a flask and curing the 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. binders to 100pts. calcareous refractory material contg. >=10wt% CaO, CaCO3. The refractory material is charged into the metallic frame and is packed therein under the oscillation applied thereto. The frame is then put into a holding chamber, etc. and is heated to cure; thereafter the flask is removed and the desired tundish gate is obtd. The amt. of the org. resin to be used is decreased, the generation of smoke and malodor is decreased and the good working environment is maintained with the above-mentioned method. The formation of a large-sized block on site is easy.