| 摘要 |
<p>PURPOSE:To expand the degree of freedom of rolling sequence and achieve the improvement in working efficiency by polishing the work rolls of the respective stands in such a manner that the serrations between the pass parts and non-pass parts of the work rolls are erased each time when the material to be rolled is rolled. CONSTITUTION:Each time when the rolling of the material to be rolled ends, the non-pass parts of the material to be rolled of the upper and lower work rolls 1a thru 6a, 1b thru 6b of each stand are operated by a width gauge 15 and a forecast polishing operator 16 and are subjected to forecast polishing by grindstones 7, 8 by way of a control unit 18. On the other hand, the plate crown waveform and crown amounts of the hoop 10 having been rolled are operated by the on-line crown meter 9 disposed at the outlet of No. 6 stand and the correction polishing amounts of the pass parts of the material to be rolled of the rolls 1a thru 6a, 1b thru 6b of each stand are operated by a correction polishing operator 17, thence said parts are correction-polished by the grindstones 7, 8 by way of the control unit 18.</p> |
