横向起皱可以认为是一种压曲现象,其原因作如下解释: (1)轧辊咬入出口区,由于幅宽方向的压缩残余应力,使板压曲,产生纵皱纹。 (2)由于幅宽方向上的剪应力,纵纹斜移,产生了斜纹。防止横向起皱的方法有如下几种: (1)使摩擦系数变小,表面的变形抗力随之变小。 Horizontal wrinkling can be considered as a phenomenon of buckling, the reason for the following explanation: (1) Bite into the exit area, due to the width direction of the compressive residual stress, the plate buckling, resulting in longitudinal wrinkles. (2) Due to the shear stress in the width direction, the longitudinal stripes are shifted, resulting in twill. There are several ways to prevent lateral wrinkling: (1) As the friction coefficient becomes smaller, the deformation resistance on the surface becomes smaller.