Causes and remedies for peeling off the edges of Mill rolls

Excessive pressure at the end of the roll body, forced bending and stiffening of the work roll, little release of the end of the support roll, thick side (dog bone) or wrong starting process, including local overload that exceeds the shear strength of the work roll material , The end of the roller body that produces the initial cracks causes local overload and long-term operation, resulting in excessive wear and tear. Continuous rolling spreads the cracks, produces cracks at super heights, and then malfunctions. This is a failure of the rolling mill.

Solution:

Make sure that the support roller has the correct roller body and release.

Avoid high pressure concentrated on the end of the work roll body to ensure good roll bending control.

Pay attention to the correct alignment and the shape of the work roll and support roll.