Methodology for selecting strip tension during continuous rolling, taking into account process stability

Abstract

The article deals with the development of a methodology for determining the rational tension regime during continuous metal rolling to ensure the longitudinal stability of the strip in the deformation zone. The aim of the study is to create an energy-saving rolling technology that takes into account the stability of the process under different tension conditions. The metal stability is assessed through the average value of the resulting longitudinal forces acting on the plastically deformed strip. The analysis of the results showed that with increasing tension, the longitudinal stability of the strip in the deformation zone decreases, which can lead to unacceptable rolling conditions at high tension values. The authors propose an optimal tension regime that ensures energy saving and process stability. The calculations and experimental data confirm the effectiveness of the proposed methodology for real rolling conditions on the continuous six-stand mill 1400. The results can be useful for improving the technology of cold rolling with high tensions.