WINDING METHOD FOR HOT ROLLED METAL STRIP, WINDING CONTROL DEVICE, AND HOT ROLLING METHOD FOR METAL STRIP USING THE SAME WINDING METHOD AND WINDING CONTROL DEVICE

摘要

PROBLEM TO BE SOLVED: To restrain generation of drawing and fracture caused by pinch rolls at an inlet side of a winding machine so that a tail end of the metal strip meanders or jumps up by sharply reducing tension immediately after the tail end of the metal strip pulls out from a finish rolling mill in the case of hot-rolling and winding the metal strip; and to maintain a high yield as well as securing surface quality of a metal strip product. SOLUTION: In a winding method for a hot rolled metal strip, when sheet thickness is a designated value or less judging from data of sheet thickness after completing hot rolling of a metal strip, after the tail end of the metal strip pulls out the finish rolling mill, the metal strip is accelerated by accelerating a rolling speed of the pinch rolls sandwiching the metal strip at both upper and lower sides at a winding machine and an inlet side of the winding machine to the speed higher than the speed of the winding machine and the pinch rolls when the tail end of the metal strip pulls out from the finish rolling mill. Then, the metal strip is wound up by the winding machine. COPYRIGHT: (C)2005,JPO&NCIPI