在现场试验与理论分析的基础上，针对现有摩擦模型对冷连轧高速轧制过程中摩擦因数的预报精度不高、通用性不强等问题，首先对润滑油膜厚度计算模型与摩擦因数返算方法进行了推导，然后定量研究了辊缝中润滑油膜厚度与摩擦因数之间的关系，最终建立起一套适合冷连轧高速轧制的摩擦因数机理模型，并将其应用于宝钢冷轧薄板厂1220五机架冷连轧机与宝钢冷轧厂2030五机架冷连轧机的生产实践。应用结果表明：提高了轧制的稳定性与带材的控制精度，减小了相关模型的自学习与自适应系数波动，取得了良好的使用效果。
On the base of field experiments and theoretical analysis, in order to solve the problems of existing friction models sech as low prediction precision and less commoness for highspeed cold rolling process,a calculation model for lubricating oil film thickness and roundcalculation method for friction coefficient were deduced firstly, and then the relationship between the oil film thickness in roll gap and friction coefficient was analyzed. Finally a friction coefficient mechanism model for highspeed cold rolling was created. The model has been used in production on 1220 fivestand cold tandem mill and 2030 fivestand cold tandem mill at Baosteel.The stability and control of rolling procese were improved greatly, the fluctuation of selfstudy and selfadaptation coefficient of the related models was reduced.
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