以国内某2230 mm冷连轧机组六辊CVC轧机为研究对象，利用非线性有限元方法，模拟分析了弯辊和窜辊综合调控下工作辊初始凸度对承载辊缝形状、辊间接触压力分布的影响规律。结果表明，当工作辊采用凸度为0~75μm的抛物线辊型时，轧机承载辊缝凸度调控域发生平移而面积基本不变，但随着工作辊初始凸度增加，辊间接触压力峰值和不均匀度均有所改善，有利于降低轧辊磨损和辊耗。对比分析了不同板宽条件下的辊缝凸度调节域，结果表明，CVC轧机对宽带钢的板形调控能力要明显高于窄带钢，且对二次、四次板形具有较好的抑制作用，为宽薄带钢冷轧机型选择提供了理论依据。
Aiming at the 6-h CVC mill of a 2 230 mm cold continuous rolling mill in some domestic plant, the influences of initial crown of work roll on loaded roll gap profile and contact pressure distribution between rolls under the roll bend-ing and shifting were investigated with three-dimensional nonlinear finite element method. The numerical simulation re-sults show that when the work roll profile is parabolic type with initial crown of 0-75μm, the adjusting range of roll crown shifts but its area remains unchanged. And the peak value and unevenness of the contact pressure between rolls are a little improved with increasing the initial crown of work roll, which is beneficial for reducing the roll abrasion. In addition, the adjusting range of roll crown under different strip widths was investigated, and the results show that 6-h CVC has a higher performance in strip shape adjusting for width strip than for narrow strip. It also provides theoretical foundation for the rolling mill type selection in wide thin strip cold rolling.
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