| 摘要 |
1. Refractory, insulating gunning mix free of asbestos, on the base of basic, refractory material, particularly for tundishes in continuous casting, characterized in that it is composed of 75 to 95% by weight of magnesia, magnesia-chrome, chrome-magnesia or olivine or forsterite respectively as refractory material, 3 to 20% by weight, preferably 3 to 12% weight, of expanded perlite, 0.5 to 5% by weight of binding agent and 0.1 to 5% by weight of plastifying agent. |
