薄铝带轧制工作辊边部接触的建模与仿真

为研究冷轧机在轧制薄铝带时工作辊边部接触对辊系受力和铝带断面形状的影响,借鉴弹性悬臂梁法和影响函数法的处理思想,建立了适用于实际生产在线控制的铝冷轧机辊系变形模型,并对不同入口铝带厚度、弯辊力、工作辊的接触状态进行仿真研究.仿真结果表明:工作辊边部接触力随入口厚度增加而增加、随弯辊力增加而减小;工作辊边部接触轧制时,轧机出口铝带凸度和横向厚差小于非边部接触轧制,有利于铝带边部减薄控制,但降低了铝轧机边部板型调控能力,在轧制中应尽量避免.

Modeling and Simulation of Thin Aluminum Cold Rolling with Work Roll Edge Contact

A deformation model of roll system in aluminum cold rolling mill applied to online control in the actual production， was established by elastic cantilever beam method and the influence function method processing ideas. The influences of working roll edge contact on the forces acting on the roll system and the cross-sectional shape of aluminum strip in the process of thin aluminum strip rolled by cold rolling mill were studied. The simulation study of different inlet strip thickness， bending force and the contact state of working roll were carried out. The results showed that the contact force of working roll edge increases with the increasing thickness of the entrance， and decreases with the increase of the bending force. When the working roll edge contacts with rolling mill， the difference between outlet strip crown and lateral thickness is less than the non-contact rolling， and this process is useful to reduce edge drop. However， as it reduces the regulatory capacity of the aluminum rolling mill for the edge plate， it should be avoided.