Abstract
A new mathematical model is developed for the state of stress in the deformation zone for plate rolling, including rolling under controlled conditions at a low temperature in the last passes. The stick zone during plate rolling is shown to account for 88–99% of the deformation zone, and the fraction of elastic regions in the deformation zone in the last passes at low temperatures can reach 12%. When the stick zone and elastic regions of the deformation zone are taken into account, the roll-force calculation error is less than 5–6.5%. The model developed can be used to optimize plate-rolling conditions, including the conditions of integrated deformation-thermal production.
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