The shape and gauge control model of cold strip rolling is the kernel model of the process control.The quality of the finished strip is affected by the precision of control model.Regarding six-high mill,the modified mill rigidity equation,spring equation and crown equation are achieved,and the transverse and vertical rigidity of six-high mill is calculated by using the finite element model of six-high mill.According to the mentioned equations,the influences of the roll gap,the work roll bending force,the mi...