| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the strength of a worked body by drying for short time, and also, the operating ratio of a tundish by solving such problem as to the pick-up of carbon caused by the shortage of the strength and the increase of adding amount of a binder in the conventional dry-type coating applied to the tundish. <P>SOLUTION: In the subject dry-type coating material containing a refractory raw material and a silicate and/or a phenol resin, and also, added with an organic hardening agent having 50-120°C melting point at 0.05-5 pts.mass to 100 pts.mass of the refractory raw material, a core is inserted into the tundish and the coating material is filled up into a gap arranged between a lining refractory and the core, and successively, the coating material is heated and hardened through the core to obtain the coating. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
