| 摘要 |
PROBLEM TO BE SOLVED: To provide a method capable of consecutively casting a post-heat without producing a slab having a component different from those of a pre-heat and the post-heat. SOLUTION: In the consecutive continuous casting method for different steel kinds, where a pre-heat molten steel 2a remaining in a tundish 5 is injected with a post-heat molten steel 2b whose component is different from that in the pre-heat molten steel 2a from a ladle 3, thus the steels having different components are continuously cast, when the kinds of the steels to be cast are changed, the feed of the pre-heat molten steel 2a to a mold 6 by the tundish 5 is stopped, the injection of the post-heat molten steel 2a into the pre-heat molten steel 2a remaining in the tundish 5 is started, and, after the component of the mixed molten steel 2c obtained by mixing the pre-heat molten steel 2a and the post-heat molten steel 2b is controlled within the standard value range of the component in the post-heat molten steel 2b, the feed of the molten steel to the mold 6 by the tundish 5 is restarted. COPYRIGHT: (C)2006,JPO&NCIPI
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