METHOD FOR CONTROLLING MEANDERING OF MATERIAL TO BE ROLLED

PROBLEM TO BE SOLVED: To provide a method for controlling the meandering of a material to be rolled, where, at the time of rolling using tandem rolling equipment, the meandering to the tip end of the material to be rolled is suppressed. SOLUTION: The method for controlling the meandering of the material 1 to be rolled is applied as follows. Meandering measuring meters 4, 5, which measure the meandering amount of the material 1 to be rolled by detecting edge positions of the material at the working side and the driving side, are installed on the inlet side and the outlet side of the m-th rolling mill in the tandem rolling equipment provided with n rolling mills. When the tip end of the material 1 to be rolled is positioned on the position of the meandering measuring meter 4 installed in the inlet side or on the upstream therefrom, screw-down positions at the working side and the driving side are corrected based on the measured value of the meandering measuring meter 4 in the inlet side of the rolling mill. When the tip end of the material 1 to be rolled is positioned on the downstream from the meandering measuring meter 4 installed in the inlet side, the screw-down positions in the working side and the driving side of the rolling mill are corrected based on the measured value of the meandering measuring meter 5 in the outlet side. Here, n is an integer of ≥3 and m is an integer of ≥1 and ≤n. COPYRIGHT: (C)2003,JPO