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针对某冷连轧机边降控制存在的问题,采用显示动力学有限元方法建立了四辊轧机辊系与轧件一体化有限元仿真模型,分析了影响带钢边降的主要因素带钢厚度和带钢变形抗力对带钢边降的影响。基于边降控制机理和自主设计的EDW边降控制工作辊辊形特点,用边降控制等效面积法建立了冷连轧机边降控制窜辊数学模型,通过有限元仿真数据分析和工业轧制试验确定了模型参数。1700四辊冷连轧机应用本窜辊模型投入自主研制的EDW边降控制工作辊和配套的VCR变接触支持辊,取得了电工钢板边降平均值≤7μm的比率达到98.22%且同板差≤10μm的比率达到97.25%的显著生产实绩。
Aiming at the existing problems of edge control of a tandem cold rolling mill, a finite element simulation model of rolling system and rolling stock of a four-high mill was established by using the finite element method of display dynamics. The main factors influencing the strip edge reduction were analyzed, such as strip thickness Influence of strip deformation resistance on strip edge drop. Based on the side-drop control mechanism and self-designed EDW side-drop control of work roll shape characteristics, the mathematical model of roll-shift control of cold tandem mill side-drop control was set up by the side-drop control equivalent area method. Through finite element simulation data analysis and industrial rolling The experiment determined the model parameters. 1700 four-roller tandem cold rolling mill, the self-developed EDW edge drop control work roll and the matching VCR variable contact backup roll were put into use in the shift-roll model, and the ratio of edge drop ≤7μm reached 98.22% Significant production performance of 97.25% at a ratio of 10 μm.