Development of On-line Model of Forward Slip on Tandem Cold Strip Mill

Compared with the rolling conditions of mild steels, those high tensile strength steels (HTSS) are very different, because their flow stress. Dimensional accuracy thickness at top end industrially rolled HTSS is lower, compared steel. This predicted force for not accurate sufficiently. problem due to only used stress model, but also theory model. If standard Hill’s equation and Bland Ford’s forward slip used, a large discrepancy between two estimated friction coefficients observed in region HTSS. In this study, authors propose new practical equations slip. The takes into account effects non-constant coefficient over roll bite so that applicable conditions. has been modified introduce 2 parameters (C B). Parameter C corresponds change bite, parameter B have installed an actual set-up model steel works. Improvements prediction confirmed.