| 摘要 |
PURPOSE:To prevent the generation of insufficient acid cleaning such as overpick or underpick by controlling the grinding current to be supplied to the grinding device in accordance with the correlation function of the necessary grinding rate and the grinding current. CONSTITUTION:When the kind of the steel grade and the winding temperature are given to the function generator 11 by the on-line computer 10, the grinding rate is indicated by the recurrence formula of the winding temperature and the grinding rate of the specified steel memorized at the function generator 11, and the output signal is given to the operator 12. The grinding rate converted into the value per bath at the operator 12 is applied to the function generator 13 to be converted into the grinding current, and the output signal is sent to the current control device 14. The current control device 14 on-off controls the backup roll pressing down motor 9 on the basis of the input signal to conicide the grinding current consumed at the grinding motor 8 with the target value determined by the output signal from the function generator 13. |
