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AGC system can improve the plate gauge precision,and damage the plate shape if the shape control loop is left quite open.This damage will cause wave during rolling wide-thin plate.A control strategy named shape lock-on method is afforded for plate shape control.This method requires APC instead of AGC at last one or two passes during rolling wide-thin plate.Approved by theory and on-line application,this method is good for the plate shape and crown control with small effect on gauge control.
AGC system can improve the plate gauge precision, and damage the plate shape if the shape control loop is left quite open. This damage will cause wave during rolling wide-thin plate. A control strategy named shape lock-on method is afforded for plate shape control.This method requires APC instead of AGC at last one or two passes during rolling wide-thin plate. Approved by theory and on-line application, this method is good for the plate shape and crown control with small effect on gauge control.