| 摘要 |
PROBLEM TO BE SOLVED: To suitably suppress a fluctuation in board thickness during switching, when control operation ends of tension control and board thickness control switch in a rolling state.SOLUTION: In a rolling machine for rolling a material-to-be-rolled by a roll pair, a control value of control based on a fluctuation in the tension of the material-to-be-rolled is suppressed to get small, when an operation end for controlling the tension of the material-to-be-rolled and an operation end for controlling plate thickness after rolling of the material-to-be-rolled switch depending a rolling state.SELECTED DRAWING: Figure 1 |
