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答:轧机纵刚度的定义是:使轧机弹跳值发生1mm变化所产生的轧制力变化。用数学表达式为:Ks=△P/△S。式中△P为轧制力变化;△S为弹跳变化量。轧机纵刚度可以反映轧机控制钢板厚度波动的能力。轧机横刚度的定义是:使轧机凸度值发生1mm变化所产生的轧制力变化。用数学表达式为:KC=△P/△C。式中△P为轧制力变化;△C为凸度变化量。轧机横刚度反映了轧机控制钢板凸度的能力。
A: The longitudinal stiffness of a mill is defined as the variation of the rolling force caused by a 1 mm change in the bouncing value of the mill. Using mathematical expressions: Ks = △ P / △ S. △ P is the change of rolling force; △ S is the change of bounce. The longitudinal stiffness of the mill can reflect the ability of the mill to control the thickness fluctuation of the steel plate. The definition of rolling mill transverse stiffness is: rolling mill crown value occurs 1mm change in the rolling force changes. With mathematical expression: KC = △ P / △ C. △ P is the change of rolling force; △ C is the variation of crowning. The mill’s stiffness reflects the ability of the mill to control the crown of the steel.