| 摘要 |
<p>PURPOSE:To eliminate the variation in the run-out side sheet breadth, and to improve the yield of product, by detecting the rolling load, the feed-in side sheet breadth and the run-out side sheet breadth, by making the modulus of plasticity of a rolled material variable, and by setting an optimum control gain every moment. CONSTITUTION:The output of a breadth meter 3, and the output of a speed meter TG9 connected with a motor 8, are inputted to a delay circuit 4 whose output is then taken as the sheet breadth W1 on the feed-in side of an edging mill 2. The output of a rolling load detector 10 is sent to a run-out side breadth arithmetic device 12 and to a gain arithmetic device 13. The roll gap SE detected by an edging roll gap detector 11 is sent to the device 12. The arithmetic device 12 operates the run- out side sheet breadth W2 by using the rolling load PE and the roll gap SE, and sends the operated breadth W2 to the device 13. The arithmetic device 13 operates the modulus of plasticity of the rolled material by using inputted signals W1, W2, PE, and besides, operates the conversion gain (g1) and inputs it to a multiplier 15. A subtracter 14 operates the difference DELTAW1 between the feed-in side reference breadth W10 and the actual breadth W1 and sends the signal DELTAW1 to the multiplier 15 which then sends a roll gap correcting signal DELTASE=-g1.DELTAW1 to a roll gap controller 6 for thereby correcting the roll gap by DELTASE.</p> |
