| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To produce rolled stocks which are excellent in the accuracy of plate thickness and a plate shape on the outlet side of the final stand by accurately controlling the plate thickness on the outlet side of upstream stands in a continuous rolling mill. <P>SOLUTION: The continuous rolling mill 1 includes: a plurality of rolling stands 2 composed of #1-#5 stands; a rolling load meter 3 which is provided on the #5 stand and a rolling load controlling part 10. The rolling load controlling part 10 is provided with a part 17 for calculating the amount for changing reference outlet-side plate thickness for calculating the amount of outlet-side plate thickness to be the reference, parts 11-14 for calculating the amount of change of the outlet-side plate thickness for changing the target value of the plate thickness on the outlet side of #1-#4 stands, low-pass filters 18-20 and a part 15 for input rolling load target value to which the target value of rolling load of the #5 stand is input. On the basis of the rolling load of the #5 stand, the target value of the plate thickness on the outlet side of two or more continuing stands on the upstream side of the #5 stand is changed. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
