| 摘要 |
<p>PURPOSE:To attain the high accuracy of the sheet width by controlling the sheet width of the rolled stock with combination of the feed forward control and the feed back control. CONSTITUTION:On the control of the sheet width of the rolled stock, the sheet width and the temperature at the entrance side of he vertical roll E4 are measured with the width measurer 1 and the thermometer 2, the width enlarged amount with the horizontal roll R4 is calculated based on these measured values and the sheet width at the exist side of the vertical roll E4 based on this width enlarged amount and the target sheet width of the horizontal roll R4 of the down stream. And the load of the vertical roll R4 of the down stream. And the load of the vertical roll E4 is detected and is executed to feed back, the opening degree of the vertical roll E4 is adjusted so that the target sheet width at the exit side of this vertical roll E4 can be obtained. Therefore, the sheet width of the rolled stock for hot rolling having the vertical roll can be controlled with high accuracy.</p> |
