| 摘要 |
PURPOSE:To improve productivity of casting slab by inserting a core, which is penetrated through combined mold connected with an intermediate vessel, keeping a molten metal to pour in the intermediate vessel and also drawing the casting slab together with the core in a body, while vibrating the mold. CONSTITUTION:The intermediate vessel 2 is arranged at above the mold 1 and an insulating ring 3 is inserted between both. A positioning guide 6 is arranged in the vessel 2, and the core 5 is penetrated through the guide 6, and a core enclosing ring 7 is arranged at near the molten metal surface position in the vessel 2. Non-active gas is blowed on a boundary surface between the core 5 and the molten metal from a pipe 8, while pouring the molten metal, so as to keep the molten metal surface at a position of the core enclosing ring 7. Next, a casting is executed by drawing the slab 9 and the core 5 at the same time, while vibrating the mold 1 and the vessel 2 at vertical direction. As friction between the slab 9 and the mold 1 is reduced, casting speed is quickened. Therefore, productivity of the slab 9 is improved.
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