| 摘要 |
<p>PURPOSE:To set the initial roll curve with which stable sheet passing is enabled in a wide range of sheet width in a continuous rolling mill. CONSTITUTION:Target uniform load crown CAIMi which makes an object stand request for achieving the target of product crown and simultaneously, for satisfying interstand flatness is set and, next, the max. (CMax), the min. (CMin) and the reference value (Co) of crown control capacity are determind for every stand. At the time of setting the optimum roll curve, on the edge side beyond the min. width, the difference between the reference target crown (CAIM) and the reference value is taken as the roll curve. Parallel rigidity is checked in this roll curve and, when this value is in a range in which the stability of sheet passing at the time of rolling is assurable, continuous rolling is executed in that state. If the correction of the roll curve is necessitated, on the midway between the roll edge and the reference width, correction for interpolating the curve by portioning out the length between the Co and the CMin corresponding to a distance with the roll edge.</p> |
