METHOD FOR CONTROLLING EDGE DROP AND SHAPE IN COLD ROLLING

摘要

PURPOSE: To control edge drop and shape fo a sheet with high accuracy even when roll wear and thermal crown are increased in accordance with the progress of rolling and to remarkably increase the throughput of rolling untill rolls are changed. ;CONSTITUTION: In the cold rolling of a metal plate using a cold tandem mill array in which rolling mills 1 in which a pair of work rolls 4 whose one end part of the roll barrel is tapered by grinding are vertically superposed in alternate arrangement of one end part and incorporated into mill housings so as to be shifted in the roll axis direction are arranged in a row, at least the profiles of work rolls of a 1st stand and the profile of the sheet on the outlet side of the rolling mill array are measured. Based on these measurement, the shift positions of the work rolls 4 of the stands are adjusted so that the profile of the sheet is the target profile.;COPYRIGHT: (C)1996,JPO