Physical Modelling of the Influence of Technological Parameters of the Hot Rolling Process on the Transverse Flow of Material

Abstract

The article discusses the impact of technological parameters on the degree of material widening in the hot rolling process. Physical simulation studies were conducted for S235JR steel and Grade 2 titanium. The result of the experiments was the determination of dependencies that allow the degree of material widening in the hot rolling process to be calculated. A heating furnace was used for the physical modelling studies to heat the samples in the temperature range of 750 to 1200°C, and a single-stand reversing duo/quarto rolling mill equipped with small-size sample feeding equipment (Fig. 1). The study results indicate considerable discrepancies in the calculations of expansion magnitude based on the widely applied formulas found in rolling literature. The computed values substantially deviate from those obtained through physical simulation.