In order to improve the quality of cold rolling,a feedforward control method for the shape of cold tandem rolling mill for ultra-high strength steel was designed.The target shape is set according to the differ-ent passes of ultra-high strength steel,and the whole shape is decomposed and calculated.The condition that the exit profile is similar to the target profile is taken as the control target,the profile uniformity and edge drop performance are analyzed comprehensively,and the profile feedforward control model is designed to opti-mize the roll bending,roll shifting and roll tilting of the frame.Experimental analysis was carried out,and the results showed that:compared with the application of this technology,the plate shape was improved by 13%,a more uniform thickness was formed,and the edge fall defect was significantly reduced.This research is helpful to improve the precision of plate thickness control and lay a theoretical foundation for the subse-quent optimization of frame parameters.
Five rackCold rolling millPlate-shapedFeedforward control
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