| 摘要 |
PURPOSE:To prevent breakout and roughness or cracking of cast strip surface by coating the molten metal surface poured in a casting space by plate-like or granular-like heat-insulating material. CONSTITUTION:Preceding the supplying of molten steel from pouring nozzle 8, beforehand after setting the heat-insulating material 12 composing of refractory board by wire 11 near the meniscus, the molten steel is poured into the casting space through the pouring nozzle 8. As the heat-insulating material 12 is brought into contact with the molten steel near the meniscus, the surface is prevented from contacting with the air, to execute the heatinsulation of molten steel surface. In this way, the development of oxidizing molten surface is prevented and the continuous casting is smoothly executed. |
