Abstract: The sheet piling (/% ： 0. 12 ~0. 22C, 0. 15 ~ 0. 55Si, 0. 80 ~ 1. 50Mn) is rolled by two-high reversing mills and universal tandem reversing mills. The stress-strain curves of the steel of sheet piling with strain rate 0. 5 ~5. 0 s^-1 at 980 ~ 1 030 °C are obtained by thermal simulation test, and the three-dimensional thermo-mechanical coupling simulation on sheet piling in rolling process has been carried out by using elastic-plasticity finite element method and software ABAQUS. In view of occurring mill overload situation in rolling process, the rolling load in each pass in rolling process is analyzed, and the groove filling improves, and the rolling load decreases by changing relative passes roll gap.

摘要： 采用二辊可逆式轧机和万能轧机组轧制钢板桩(/%:0.12～0.22C、0.15～0.55Si、0.80～1,50Mn)。通过热模拟试验得出该钢在980～1 030℃、变形速率0.5～5.0-1 时的应力-应变曲线。借助ABAQUS软件,采用弹塑性有限元法对钢板桩轧制过程进行了三维热力耦合模拟。针对生产中出现的轧机过载问题,分析了轧制过程各道次的轧制力,通过改变相关道次孔型辊缝改善了充型和降低轧制力。

关键词: 钢板桩, 弹塑性, 轧机过载, 热力耦合, 有限元法