| 摘要 |
<p>PURPOSE:To provide a means for optimizing width shape and crop shape at the tip and rear end of a steel sheet after rolling. CONSTITUTION:At the time of executing rolling for thick plate by using a horizontal roll mill 2 and edger 1 jointly, edging is executed to the vicinity of the tip and rear end of product so that the vicinities of biting end and running-out end of the edger 1 are at a draft less than the reference rolling reduction in the middle part before, after, or in the process of cross rolling. In this way width drop in the vicinity of the tip and rear end of steel sheet after rolling can be prevented and also width shape and crop shape can be simultaneously optimized. The rectangular product with extremely small cut- down part and high yield can be manufactured.</p> |
