SHAPE-CORRECTING AND ROLLING METHOD AND SHAPE-CORRECTING DEVICE FOR HIGH-STRENGTH STEEL

摘要

The present invention provides a shape-correcting and rolling method for high-strength steel, whereby it is possible to effectively achieve shape correction of high-strength steel, and provides a shape-correcting and rolling method for high-strength steel, the method comprising: a hot-rolling skin-pass-mill direct-coupling forwarding step in which a hot-rolled coil is sent to a pay-off reel, or a step in which the coil is forwarded after having been passed through a cooling step; an unwinding step in which the coil is spooled out from the pay-off reel; a shape-correcting step in which a heat-pipe roll is used to correct the shape of the unwound strip; and a re-winding step in which the strip is re-wound into a coil.