| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot direct rolling method of a cast slab by which hot direct rolling is performed by controlling so that the temperature difference in the longitudinal direction of a cast slab after continuous casting is made to be approximately constant when the slab is bitten with a rolling mill. SOLUTION: In the hot direct rolling method by which the cast slab 7 cast with a continuous casting machine 1 is immediately conveyed to the rolling mill 3 and rolled, a heat insulating chamber 6 in which the temperature difference in the nose part of the cast slab 7 is reduced by utilizing the holding heat in the rear end part of the cast slab 7 and also the atmosphere temperature in the heat insulating chamber 6 is controlled so that the temperatures at the nose and the rear end of the cast slab 7 on the inlet side of the rolling mill 3 are substantially equal. COPYRIGHT: (C)2006,JPO&NCIPI
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