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Mathematical modelling of roll cooling and roll surface stress

机译:轧辊冷却和轧辊表面应力的数学模型

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摘要

In a hot strip mill, the quality of the rolled products and the productivity of the mill depend on the efficiency of roll cooling to a great extent. To study the influence of the cooling system on roll performance, a good understanding of the thermal aspects of roll cooling is essential. Mathematical models to predict temperature development in the work roll and compute thermal strain induced at the roll surface during rolling were developed and applied to the upper work roll of the 1st stand of the finishing mill of HSM at Tata Steel. The models were used to predict temperatures and thermal stresses/strains in the roll under various cooling conditions, thus examining the efficiency of the existing roll cooling system and exploring the scope of optimizing it.
机译:在热轧机中,轧制产品的质量和轧机的生产率在很大程度上取决于轧机冷却的效率。为了研究冷却系统对轧辊性能的影响,必须对轧辊冷却的热方面有一个很好的了解。开发了预测工作辊温度发展并计算轧制过程中辊表面感应热应变的数学模型,并将其应用于塔塔钢铁公司HSM精轧机第一机架的上部工作辊。该模型用于预测各种冷却条件下辊的温度和热应力/应变,从而检查现有辊冷却系统的效率并探索优化范围。

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