| 摘要 |
<p>PURPOSE:To enable titled control without a time lag, by controlling the controlling means of the final stand by feed-forward control after obtaining a well sheet shape at the exit of the fianl stand by feedback control, in a fixed speed rolling. CONSTITUTION:This continuous rolling mill has the 1st stand 11 to which an automatic sheet thickness controlling device is provided, the 2nd-4th stands 12- 14, and the final stand 15 to which a sheet shape controlling means consisting of a bender 26 and a press-down device 28 is provided. Then in a fixed speed rolling, after when a sheet shape discriminating device 30 discriminates, according to the output of a shape detector 20, that a well sheet shape at the exit of the final stand is once obtained by feedback control, the successive controlling is performed as follows. That is, the controllig of the shape controlling means of the stand 15, is performed by a feed-forward controlling device 44 in accordance with the change of sheet shape at the exit side of the stand 11 detected from the change of rolling load of the stand 11 obtained by detection of a load cell 32.</p> |
