| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling method using a reversible rolling mill, capable of performing highly efficient rolling by increasing a front end biting speed and decreasing the total number of rolling passes, and to provide a manufacturing method for a hot-rolled steel strip. SOLUTION: The rolling method using a reversible rolling mill is a rolling method decreasing the thickness of a hot slab to a prescribed one through a plurality of rolling passes in a reversible rolling mill. Rolling reduction is performed at the tail end of a rolling material successively in each rolling pass while narrowing the roll gaps between the rolling rolls, so that the thickness of the tail end of the rolling material in each pass is made thinner than the thickness of the regular part thereof. COPYRIGHT: (C)2009,JPO&INPIT
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