| 摘要 |
A flatness control apparatus for controlling the flatness of a strip in a hot rolling mill, wherein a strip width meter measures center line error values of the strip. The center line error values are the offsets of the center of the strip from the center of the hot rolling mill line and are positive if the center of the strip is offset toward a drive side of the mill. A flatness meter, installed on the delivery side of the mill, measures flatness of the strip at positions specified by the flatness control apparatus. Based on the center line error values and the flatness measurements, the flatness control apparatus calculates adjustments to be made to a work roll bending apparatus on a final stand in the mill in order to control strip flatness.
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