| 摘要 |
<p>PURPOSE:To execute with a high accuracy a camber control by correction of a draft position, by estimating a rolling material bitten position by a shape measuring device installed at a distance from a mill, and utilizing its information and a rolling load difference signal of the right and left of a rolling mill. CONSTITUTION:A cambering quantity delta of a rolling material T is derived by an operating device 5 by using shape measuring devices 4, 4' and 4'', and a rolling load difference DELTAP1 is derived from the cambering quantity delta by an operator 8, and a wedge quantity DELTAh1 is derived by an operator 9. In an operator 11, a proportional constant K is derived from a rolling load difference DELTAP2 by a disturbance from a rolling load difference DELTAP and a rolling load difference DELTAP1 of the right and left derived by an operator 6, and the sum DELTAh of the wedge quantities derived by the operators 9, 10. On the other hand, in an operator 10', a corrected wedge quantity DELTAhs is calculated from a wedge quantity DELTAh1 and a target wedge quantity DELTAhdf*, and a rolling reduction correcting quantity DELTAS* is outputted to a rolling reduction control device 7 of a rolling mill. The rolling reduction control is executed by utilizing this correcting quantity DELTAS* during a period in which the cambering quantity delta can be measured by the shape measuring devices 4, 4' and 4'', and the camber correcting control is executed.</p> |
