| 摘要 |
<p>PURPOSE:To eliminate the deviation of web throughout the whole length of a material to be rolled, by detecting the deviation of web of the material at the inlet or outlet side of a mill, and continuously controlling the deviation of web by changing a biting angle of the material to the mill in accordance with the detected results. CONSTITUTION:An offset of center is detected by a center-offset detector 11, and the detecting signal 14 is inputted to a host arithmetic device 10. The device 10 calculates an adjusting quantity DELTAH of the height to be adjusted by a restricting device 9 according to the equation, and this signal 13 is added to the device 9. In this equation, respective items are represented by the following symbols, K: constant, S: a changing quantity of the offset of the center, L: the distance between the center of a universal mill 1 and the device 9. The device 9 opens pinch rolls till immediately before the material is bitten, without restricting a material and the restriction is started immediately after the biting, then the height is continuously adjusted during rolling to remove the offset of the center throughout the whole length of the material.</p> |
