| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot-rolling method and a hot-rolling line for still more refining crystal grains within the range of practical conditions. SOLUTION: This method is a hot-rolling method by which a metallic strip is made by applying rolling to a metallic piece in the state where the upper and lower work rolls of the final stand of a cross rolling mill are crossed at the cross angle of <1 deg. in finish rolling, bending work is repeatedly applied to the metallic strip after the finish rolling and, after that, cooling is performed. On the hot-rolling line used for the rolling, a cross mechanism which is constituted so that the upper and lower work rolls can be crossed at a prescribed cross angle is provided on at least one rolling stand of the finishing mill and furthermore a leveler and a cooling system are arranged in this order from the upstream side toward the downstream side on the downstream side of the final rolling stand of the finishing mill.
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