| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the rolling method of shapes by which the shapes are rolled with high dimensional accuracy. SOLUTION: The rolling method is composed so that, in a rolling stage including at least one or more processes where three passes of universal rolling, edger rolling and universal rolling are continued, rolling load is measured at each rolling pass and roll interval is set based on the measured rolling load. In such a case, based on the measured load of the universal rolling at two passes before that universal rolling and the measured rolling load of the edger rolling at one pass before, the thickness of a material on the inlet side of that universal rolling is predicted and the roll interval between the vertical rolls of that universal rolling pass is set based on the estimated thickness of the material.</p> |
