| 摘要 |
<p>PURPOSE:To control the sheet width of a rolled stock with high precision by correcting width strain caused by the tension distributed in a width direction acting on the rolled stock and controlling the tension corresponding to a corrected targeted sheet width. CONSTITUTION:When the rolled stock passes between stands i-1, i, it receives plastic deformation and is deformed in width near the inlet side of the rolling mill. A tension distribution generated at this time is estimated and operated, a quantity of width strain caused by it is calculated by an arithmetic processing unit 3 and its gradient is controlled by a tension-controlling louver 2 through a motor M. A quantity of local strain on the inlet side of a roll bite is modified and the tension corresponding to a targeted sheet width is corrected to set the targeted sheet width. In this way, the sheet width of the rolled stock can be controlled.</p> |
