| 摘要 |
PROBLEM TO BE SOLVED: To perform stable plate thickness control and stable tension control even when the influence coefficient of a rolling mill significantly changes according to an operation state.SOLUTION: A stable control from an extremely low speed to a high speed part is materialized by switching the control output targets of a plate thickness control and a tension control to a front stage stand speed and a rear stage stand reduction according to the change of an influence coefficient, or by changing the control output distribution according to the change of the influence coefficient. The control output targets of the plate thickness control and the tension control are switched in accordance with the front stage stand speed, the rear stage stand reduction and a rolling state and used so that the thickness accuracy and the production efficiency are improved. |
