| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a dry coating material that can prevent a collapse and missing of a work body before receiving a molten steel of a tundish for continuous casting, and can reduce contamination of the molten steel due to hydrogen pick up as much as possible. <P>SOLUTION: The dry coating material is produced by compounding an aggregate containing a magnesia-based aggregate as the principal component, 0.5-5 mass% of phenol resin powder, and 0.5-5 mass% of one or more selected from a group consisting of a boron oxide, a boric acid and an alkali metal borate, with each other. <P>COPYRIGHT: (C)2013,JPO&INPIT |
