| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a sheet rolling mill capable of obtaining a sheet with an excellent shape by inhibiting a defective shape such as warpage in a width direction after rolling, and to provide a control method for the sheet rolling mill. <P>SOLUTION: When operating an intellectual rolling mill, the target value of control for a lower work-roll deflection adjusting device 8 is calculated to realize the target value of deflection of the lower work-roll in accordance with rolling conditions, and the lower work-roll deflection adjusting device 8 is controlled based on the calculated result. Further, the load distribution in the width direction between a rolling material and the work roll and/or the sheet thickness distribution in the width direction on the outlet side of the rolling mill is estimated from the value of load detected by a load detecting device 4 of upper divided reinforcing rolls 1-1, the target value of control for an upper reinforcing-roll reduction point controller 14 is calculated to achieve the desired load distribution in the width direction or the desired sheet thickness distribution in the width direction, and the upper reinforcing-roll reduction point controller 14 is controlled based on the calculated result. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
