Tension control is a very important link in the
cold rolling mill Steel process. By setting tension devices at the entrance and exit of the strip, a certain tension is applied to the strip. The main functions of tension are as follows: First, it helps the strip maintain a stable operating state to prevent deviation and shaking; second, it can reduce the rolling force, because tension can make the strip more prone to plastic deformation during the rolling process, thereby reducing the pressure of the rolls on the strip; third, it can improve the strip shape. By reasonably adjusting the tension distribution, the strip deformation in the width direction can be made more uniform, reducing plate defects such as waves and bends.