| 摘要 |
PURPOSE:To stabilize an operation by determining so that the final stand rolling reduction becomes a rolling load for maintaining satisfactorily a shape of a finish plate, and determining other draft schedule so that a distribution of each driving motor current becomes a prescribed ratio. CONSTITUTION:In a continuous cold rolling mill consisting of plural stands, a draft schedule is determined by determining so that a forecasting rolling load of the final stand in plural stands coincides with a target rolling load, and determining a target value of a plate thickness between the stands so that a distribution of each driving motor current of other stands than the final stand in said stands. In this way, a shape of a finish plate in the final stand can be held satisfactorily, also in other stand, generation of a heat scratch to the surface of a roll can be prevented, and a stable operation can be executed. |
