Then, the expansion nut of cold-formed steel equipment is adjusted to expand the data of four arcuate plates and steel coils, so as to better prevent the data of steel coils from being deformed or damaged during operation. Only in this way can we achieve a foolproof effect and complete the task on time. The main basic principle of cold bending forming technology of cold bending steel equipment is to bend the strip in a straight line along the longitudinal direction.
However, the combination of the pressure generated during bending deformation and the residual stress in the strip often deviates from the cold-formed steel equipment. In order to solve these problems better, straightening mechanism should be adopted at the end of cold-formed steel equipment. As far as the basic principle of straightening mechanism is concerned, the profile with many defects such as lateral bending and warping has ten sufficient pressures in some opposite directions through straightening mechanism, which makes it irreversibly deformed.