| 摘要 |
PROBLEM TO BE SOLVED: To obtain a refractory for hot repair of kiln which has a good flow property, less emitting smoke and gas and contributes to shortening the firing time and repair time. SOLUTION: A phenolic resin which is a binder and pitch powder are added alone or in combination at 2 to 20 pts.wt. of the former and 5 to 30 pts.wt. of the latter to 100 pts.wt. of refractory material and further, the refractories are compounded with a prescribed ratio of a flow property imparting agent in some cases. This flowability imparting agent may be composed of 2 to 20 pts.wt. wax powder and 1 to 10 pts.wt. synthetic terpene resin or may be composed of 2 to 20 pts.wt. paraffin and 1 to 10 pts.wt. synthetic terpene resin or may be composed of 2 to 20 pts.wt. wax, 2 to 20 pts.wt. paraffin and 1 to 10 pts.wt. synthetic terpene resin. |
