| 摘要 |
<p>PURPOSE:To control the thickness of a rolled material with high accuracy by correcting the correction term for the gaugemeter method by a specific method in the stage of calculating the rolling down position for controlling the thickness to a target thickness in accordance with the predicted rolling load during rolling down to the target thickness, the elastic constant of a rolling mill, the correction term for the thickness of an oil film and the correction term for the gaugemeter method. CONSTITUTION:The rolling down position S0 where the thickness of a rolled material is controlled to a target thickness (ha) is calculated by the equation in accordance with the predicted rolling load F0 during rolling down to the thickness (ha), the elastic constant M of a rolling mill, the correction term delta0 for the thickness of the oil film and the correction term E for the gaugemeter method, and the thickness is controlled in accordance with the calculated position. The equiv. thickness Hi+1 in the succeeding pass is calculated by the rule of mass flow from the plate length L1 in the preceding pass, a gaugemeter thickness H1, and the plate length Li+1 in the succeeding pass and the correction term E is corrected in accordance with the deviation between the thickness Hi+1 and the thickness Hi+1 in the succeeding pass.</p> |
