METHOD FOR CONTROLLING THICKNESS IN COLD TANDEM ROLLING

摘要

PROBLEM TO BE SOLVED: To provide a thickness control method in a cold tandem rolling by which the maximum effect is obtained by the minimum investment in not only a steady part but an unsteady part.;SOLUTION: In the thickness controlling method in the cold tandem rolling by which bending force is imparted to a work roll at a first stand, at least rolling load and roll bending force are measured at the first stand, the absolute value of the thickness on the outlet side of the first stand is estimated by a gage-meter formula on the basis of those measured values and the thickness is controlled by changing a screw-down position on the basis of the deviation of the estimated value from the target value of the thickness on the outlet side of the first stand.;COPYRIGHT: (C)2007,JPO&INPIT