| 摘要 |
<p>PURPOSE:To obtain a plate product satisfying crown shape and excellent in quality by composing the stand roll bending force using a linear programming so that a preset value of each stand roll bending force is determined. CONSTITUTION:The preset value of a work roll bending force is computed by a preset value arithmetic unit 8 through the linear programming. This preset value is outputted to a roll bending force setting device 4 to control the work roll bending force. This controlling operation is executed at a preset, namely, before a plate material 1 is rolled, and, when the plate material 1 is passed, the shape of the plate material and the actual values of the crown by a shape detector 5 and a crown detector 6 are sent to a correction arithmetic unit 7. The deviation between the desired crown and the shape is computed, and a corrected roll bending force is computed by the controlling operation similar to that at the preset time. The computed result is outputted to a setting device 4 of roll bending force to control the work roll bending force.</p> |
