| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve the problem that it is difficult to manufacture a thick plate having the excellent sheet crown and flatness of the plate. SOLUTION: A pass schedule is preset using a 1st estimated value of roll crown which is determined respectively about the whole pass of rolling. After performing the rolling of one or more passes according to this pass schedule, a 2nd estimated value of roll crown which is different from the 1st estimated value of roll crown is determined about at least one pass of the rolling on and after that rolling and the setting of the pass schedule is changed using the 2nd estimated value of roll crown. By performing the rolling according to the pass schedule whose setting is changed, the thick plate having the target sheet crown is manufactured.</p> |
