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支承辊倒角是板带轧制过程中常用于板形控制的一种方法,目前关于这方面研究的报道很少。通过简支梁模型以及有限元模型分析研究了宽度为400 mm的铜带轧制生产中支承辊倒角对轧制板带板形控制的影响。简支梁模型分析显示,若倒角后支承辊辊面长度大于板带宽度,则其长度越小,对板形控制越有利;有限元模型结果显示,倒角后支承辊辊面长度小于460 mm时,轧板肋部将产生应力集中,易出现肋浪缺陷。因此,倒角后支承辊辊面长度的设定应综合考虑支承辊倒角对板形控制的有利作用及倒角后支承辊辊面长度过小时造成轧板肋部出现应力集中的问题,取最优值。
Supporting roller chamfering is a method commonly used for strip shape control in the strip rolling process. At present, there are few reports on this aspect. The effect of support chamfering on strip shape control of rolled strip was studied by simple beam model and finite element model analysis. The analysis of the simply supported beam model shows that the longer the length of the chamfering backup roll is, the better the shape control is. The length of chamfering backup roll is less than 460 mm, the rolled plate rib will have stress concentration, prone to rib wave defect. Therefore, the length of chamfering roller surface after setting should be taken into account the chamfering of the supporting roller shape control of the beneficial effects of chamfering and supporting the roller surface length is too small, resulting in the stress concentration of rib plate, take The optimal value.