| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To suppress thickness variation by preventing overcontrol generated from interfere of mill-rigidity control with AGC control. <P>SOLUTION: This apparatus is provided with a limit value-deriving means 91 for deriving a limit range of a tuning rate by which the amount of thickness variation is fell within the allowable range on the basis of the mount of variation of a predicted load, a load limit-deriving means 92 for deriving the limit value of load on the basis of the manipulated variable of a roll gap on the basis of the mill-rigidity control and AGC control and the limit range, and an operation control means 93 for controlling the roll gap so that the value of the rolling load on the basis of the mill-rigidity control and the AGC control does not exceed the limit value of load. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
