straightening machine for rolling mill:
roll forming equipment: One basic rule of the roll forming process is to bend the starting flat strip in a straight line, in the longitudinal direction. However, the stresses create by the forming, compound with the residual stresses in the starting material, frequently force the product to deviate from a straight line. The most frequently use terms to describe the deviations after they exit from the last pass are:
- Camber — in the horizontal direction
- Bow—in the vertical direction
- Twist — shaped in a spiral form
To correct these problems, straighteners use at the exit end of most roll-forming mills.