| 摘要 |
<p>PURPOSE:To control edge drops without sacrifice of a shape by adjusting a displacement amount of a set position of a work roll taper starting point on the basis of a sheet edge in respective rolling stands. CONSTITUTION:As for >=2 rolling stands of a tandem mill provided with work rolls 2, a roll end part of which is formed into a taper down shape toward a roll body end and movable in the direction of a roll axis, cold rolling is performed by setting a taper starting point of the rolls 2 to an inside point from an edge of a rolled stock 1. In that time, edge drops are controlled by adjusting a displacement amount of a set point a work roll taper starting point on the basis of an edge of the stock 1 in respective rolling stands. Therefore, edge drops are effectively reduced and the stand performing tapered work roll shift rolling is specified, so that a cold rolled sheet having very small deviations in sheet thickness distribution and a good shape is obtained without interference with shape control.</p> |
