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冷轧时,为了显著的提高生产率和强化工艺流程,要求考虑轧辊的工作温度情况。因此,轧辊内温度应力的计算具有特殊意义,它有助于选择工艺流程的极限参数和采用合理的冷却制度,以保证轧辊的正常工作和具有较高的寿命。所以在工作辊的强定计算中应该对温度应力进行验算。轧辊温度的测定和某些理论上的研究证实,冷轧时,由于变形程度、冷却条件、轧制速度等因素的不同,轧辊辊身表面可发热至80～200°。P.吉尔席费里德尔用特殊仪表从输出端测量了四辊式带材轧机用水冷却的上工作辊的温度。发现轧制时工作辊发热至100～120°,而在停歇时轧辊冷却到40°,同时,在轧辊工作停歇的第一分钟内温度降
Cold rolling, in order to significantly improve productivity and strengthen the process, requiring consideration of roll temperature conditions. Therefore, the calculation of the temperature stress in the roll is of special significance. It helps to select the limit parameters of the process flow and adopts a reasonable cooling system to ensure the normal operation of the roll and has a higher life span. Therefore, the calculation of the work roll should be calculated on the thermal stress. The measurement of the temperature of the roll and some theoretical studies confirm that the surface of the roll body of the roll can be heated to 80-200 ° due to the different degrees of deformation, cooling conditions and rolling speed during cold rolling. P. Gilchrist Felice measured the temperature of the water-cooled upper work roll of a four-roll strip mill from the output with a special gauge. It was found that the work roll was heated to 100-120 ° during rolling, while the roll was cooled to 40 ° during the rest period. At the same time, the temperature drop during the first minute of roll stoppage