Shape Control Simulation on 4-High CVC Mill

The computation model of shape and crown on 4-high CVC mill was established by combining the stream surface strip element method for analyzing three-dimensional plastic deformation of strip and the influence coefficient method for elastic deformation of rolls, and the simulation of the shape and crown control on 4-high CVC hot strip mill was conducted. The simulated results indicate that the influence of the shifting of CVC work roll on shape and crown is very large, and the shifting of work roll can be used to preset shape and crown. The influence of the bending force of work roll on shape and crown is smaller, and it is suitable to use the bending force of work roll for shape and crown adjustment on line. With the increase of strip width, the exit crown of strip increases firstly and decreases then, and the roll gap becomes smoother increasingly. Meanwhile, the transverse difference of front tension stress decreases firstly and increases then.

板宽对4辊CVC热轧机板形控制能力的影响

采用流面条元法分析带材的三维塑性变形 ,影响系数法分析辊系的弹性变形 ,并将二者耦合 ,建立了 4辊轧机板形和板凸度的分析计算模型 ,并针对板宽对 4辊 CVC热带钢轧机板形控制能力的影响进行了仿真研究。仿真结果表明 ,随着板宽的增加 ,出口板凸度先增大后减小 ,辊缝变得越来越平缓 ;单位宽度辊间压力增大 ,且沿横向的变化比较均匀 ;板带的宽展减小。对热带钢轧制 ,乃至厚板轧制具有重要的意义。