| 摘要 |
<p>PURPOSE:To make the improvement in the quality of a product and stable operation possible by executing shape control with a specific key stand in accordance with the target plate crown ratio determined by calculation from rolling conditions such as plate thickness, width and rolling load. CONSTITUTION:The rolling conditions are inputted 1 and a model parameter is calculated 2. The max. plate crown ratio and min. plate crown ratio are calculated 3 from the model parameter, the rolling conditions and further the permissible range of the manipulated variable for the shape control and the permissible range of flatness. The target crown ratio is then determined 11 and in which stand or subsequent stands the specified plate crown ratio is possible is discriminated. The set value of the manipulated variable for the shape control is determined via such means. The skew angle, etc. of, for example, a skew roll rolling mill are used as the manipulated variable for the shape control Since the initial set value is automatically and easily determined in the above-mentioned manner, the improvement in the quality of the product an the stabilization of the operation are made possible.</p> |
