2180 mm冷连轧机各机架对成品板形的影响

为了分析冷连轧机机架间的相互影响以及各机架对成品板形的影响，基于冷连轧凸度和平坦度模型，采用影响系数法建立了冷连轧机的板形调控功效模型.针对某2 180 mm冷连轧机组，结合其4个典型轧制规程，对不同机架板形调控功效进行了具体分析，可以看出，对于同一轧制规程，各机架对成品板形的影响差别很大，越靠近末机架，影响越大.在冷连轧机的5个机架中，除了末机架即第5机架外，对成品板形影响最大的为第4机架，最大影响接近10 IU（1 IU=10-5），且不同机架各板形调控手段对成品板形的影响系数在机架间相差10-3数量级.最后，对板形数据进行了统计分析及相关轧制试验来分析结论的可靠性. 

Effect of Different Stands of 2 180 mm Tandem Cold Rolling Mill on Shape Control of Product

In order to analyze the mutual influences among different stands of tandem cold rolling mill and the influence of each stand on the final product shape, a control efficacy model was built with the influence coefficient method based on the crown and flatness models of continuous cold rolling. Aiming at a 2 180 mm tandem cold rolling mill, combined with its four typical rolling schedules, the shape control efficacies of different stands were studied, and it was found that, for the same rolling schedule, the ability of each stand to affect the product shape varied a lot, and the closer to the last stand, the greater effect on product shape. Among the five stands of tandem cold rolling mill, except for the last stand, i.e, the fifth stand, the fourth stand had the largest effect on the product shape, the maximum value approached to the 10 IU(1 IU=10^-5). The influence coefficient difference of the shape adjustment means of different stands on final product shape between the stands was about 10^-3 order of magnitude. Finally, the shape data were counted and analyzed and the rolling trial was carried out to prove the reliability of the conclusion.