| 摘要 |
<p>PURPOSE:To efficiently obtain good rolled products having a proper thickness by accurately performing adjustment in accordance with sheet thickness deviations between the inlet and the outlet side of the a one-stand-multipass rolling mill. CONSTITUTION:A rolling mill 1 is provided with a rewinding reel 6 supplying a rolled stock 11 and automatic sheet thickness controllers 3 and 8 controlling speed control means 14, 15, and 17 for work rolls 103-106 and driving motors 4, 5, and 10 by obtaining sheet thickness deviations of the stock 11 from thickness gages 2 and 7 at the inlet and outlet sides of the rolling mill 1. The controller 3 controls an electric current control means 16 of a motor 12 giving the reel 6 rotation and the stock 11 tension and the other controller 8 adjusts a screwdown position of screwdown rolls 101 and 102 using a screwdown device 9 and controls a speed of a roll 106 of the final path, and changes a speed changing ratio. By this constitution, the adjustment for the deviation between plate thicknesses at the inlet and the outlet side of the mill 1 is performed properly and the product quality is improved.</p> |
