| 摘要 |
<p>PURPOSE:To raise the stability of a control, and to obtain a width size of a rolling material with a high accuracy by controlling a width of the material of a hot rolling mill control system without receiving an interference from a plate thickness control system and a looper angle control system. CONSTITUTION:Plate width compensating operators 32, 42 for operating in advance an interference portion exerted on a plate width control system from a manipulated variable of each control system of the plate thickness control system and a looper angle control system are provided on a control system for controlling a rolling mill by giving a target value of a plate thickness, a plate width and a looper angle of the delivery of a hot rolling mill. Also, this system is constituted so that in case a plate thickness variation or a looper angle variation is generated, not only the plate thickness control system and the looper angle control system but also the plate width control system are driven by the interference portion. Accordingly, the stability of the control can be improved by eliminating an interference of other control system to the plate width control system.</p> |
