| 摘要 |
<p>PURPOSE:To suppress the plate thickness fluctuation at accelerating and decelerating and to improve yield by performing a compensating corresponding to the rolling environment and rolling conditions of the last rolling pass. CONSTITUTION:The inlet side plate thickness deflections are tracked from the position of the inlet side plate thickness meter 1 to the position of the outlet side plate thickness meter 2, the difference between the inlet side plate thickness deflection and the outlet side plate thickness deflection at accelerating and decelerating and a signal of the outlet side plate thickness deflection are outputted. Thereby, the change of the outlet side plate thickness at the accelerating and decelerating in the last rolling is extracted, the result is converted to the rolling reduction of the mill to reflect to the next rolling, to add it to the compensating value for the accelerating and decelerating and in the next rolling where the rolling environment remains nearly unchange, it is used for suppressing the plate thickness fluctuation at the accelerating and decelerating. By this method, though the rolling environment and conditions such as the temp., material, friction coefficient, etc., are changed, the compensating error is corrected automatically in the next rolling, the yield effected by the plate thickness fluctuation at the acceletating and decelerating is improved.</p> |
