| 摘要 |
PROBLEM TO BE SOLVED: To improve the yield of a cast steel slab by subjecting even both end faces in the width direction of a cast steel slab to a surface melting treatment. SOLUTION: A plasma torch 10 is arranged in the upper part of a cast piece H. On both sides in the width direction B of a position which is irradiated with plasma arc P from the plasma torch 10 in the cast piece H, there are arranged holding members 20, 21. The holding members 20, 21 are horizontally movable by a moving mechanisms 24, 25 and are able to come in contact with both sides in the width direction B of the cast piece H. The holding members 20, 21, in contact with both sides of the cast piece H, are able to hold the molten part M which is fused by the plasma arc P from the plasma torch 10. COPYRIGHT: (C)2010,JPO&INPIT
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