ON SHAPE CONTROL FOR 1420 HC STRIP MILL

On the basis of synthetic analysis of shape control on 1420 HC strip mill.M.D.Stone's analytic methods,K.N.Shohet's influence function methods as well as 3 D photoelastic analytic methods were combined to study the influence of the intermediate rolls axial movement on the transverse thickness error and the strip shape on skin pass. The best dragging amount was determined,and the transverse thickness error has been reduced by 50 % ~80 %,strip shape was obviously improved.And furthermore the rolling force of skin pass was reduced by 8 %~10 %.