ABSTRACT
For a given strip width, the ideal solution to this problem is the use of a stepped backup roll (Fig. 23.2a) that has a contact length with the work roll that is equal to the strip width. This solution, however, is impractical when products of various widths are being rolled. This problem can be solved in the HC mill by implementing bi-directional shifting rolls (Fig. 23.2b) that can accommodate each strip width to be rolled.
