| 摘要 |
PROBLEM TO BE SOLVED: To provide a completely continuous hot-rolling method of a thin sheet for preventing width shrinkage generated in the end parts in the width direction in the end part in the longitudinal direction of a overlapped part after finish rolling in the completely continuous hot-rolling method of the thin sheet by which the tail end of a preceding bar and the tip of a succeeding bar of materials in rolling between rough rolling and finish rolling are overlapped in the longitudinal direction, the overlapped part is joined by rolling in the finish rolling and the bars are continuously rolled. SOLUTION: In the completely continuous hot-rolling method of the thin sheet by which the tail end of the preceding bar and the tip of the succeeding bar are overlapped in the longitudinal direction between the rough rolling and the finish rolling, the overlapped part is joined by the rolling in the finish rolling and rolling is continuously performed, the planar shape of the tail end of the preceding bar and the planar shape of the tip of the succeeding bar before overlapping are respectively made into a concave shape with a crop shear before finish rolling.
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