| 摘要 |
PURPOSE:To prevent an abnormal step difference causing on a rolled stock by commencing a grinding from the respective right and left max. wear step differences and those outside parts among the roll wear step difference located at the position where the succeeding rolled stock passes. CONSTITUTION:After rolling a rolled stock, the plate pass width 3 of the succeeding rolled stock is recognized, the max. wear step difference 2b within the plate pass width 3 of the succeeding rolled stock is judged and the width at the inner side of the max. wear step difference is taken as a nongrinding width 9. The outside (grinding part 16) of the nongrinding width is ground so that the wear step difference thereof may be eliminated as far as possible until the succeeding rolled stock is passed. The a max. wear step difference 2b is thus reduced up to 2c by grinding at the rolling time of succeeding rolled stock and a normal profile 4 in the width direction is efficiently obtd.
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