the factors of cold rolled steel shape affected analysis

 

1.the original plate affected,including the thickness,fluctions,hardness,fluctuations,the original plate shape

2 cold rolling itself: Influence factors have roll cold rolling itself crown (including thermal crown), roll wear, rolling force, rolling temperature, rolling lubrication.

Generally, roll crown is convex roll diameter value that is the difference between the middle and the end of the representation. Rolling overall crown means mechanical crown early, thermal crown, rolling force and bending machine with bending rolls to give the crown together.

Shape defects

Mainly due to the poor operation of rolling and roll caused by poorly designed, in addition, improper strip itself of poor quality, acid and heat treatment will have a plate-shaped defects, a common plate-shaped defects