热轧定宽压力机板坯侧弯形成规律有限元仿真

Finite element study on the formation regularity of slab cambering at a slab sizing press of hot rolling

摘要: 某些现场热连轧生产线定宽压力机出口普遍存在板坯侧弯现象.采用有限元软件LS-DYNA建立了定宽压力机板坯定宽的有限元模型,对不同板坯中心线偏移量和锤头非对称倾斜角度下的板坯侧弯情况进行分析.造成减宽过程侧弯的原因是板坯中心线偏移,并给出其定量影响的关系式.

Abstract: The purpose of this article is how to eliminate slab cambering at a slab sizing press in the hot rolling steel production line in some Chinese steel plants. A finite element:model of slab sizing pressing was established with the finite element software LS-DYNA. Slab cambering was analyzed aL different slab center-line offsets and asymmetrical hammerhead inclination angles. It is found that slab center-line offset is the main influence factor of slab cambering during slab sizing pressing, and then a quantitative expression of influence was gained.