建立成品规格为200 mm×200 mm×8 mm×12 mm的H型钢连轧模型,利用大型有限元软件ANSYS/LS-DYNA对H型钢的连轧过程进行模拟,分析了H型钢万能轧制过程中腹板和翼缘的延伸不均匀、断面温差等对残余应力的影响。并通过金相观测实验,分析轧件有残余应力时微观组织与无残余应力时的不同。从有限元分析和实验结果可以看出,合理分配腹板和翼缘的压下量及控制冷却速度降低断面温差,可以降低H型钢残余应力。 The H-beam continuous rolling model with finished size of 200 mm × 200 mm × 8 mm × 12 mm was established. The continuous rolling process of H-section steel was simulated by the large-scale finite element software ANSYS / LS-DYNA. The web and the flange of the uneven extension of the cross-section temperature difference on the residual stress. Through the metallographic observation experiment, the difference between the microstructure and the residual stress without the residual stress in the rolling is analyzed. From finite element analysis and experimental results, it can be seen that the reasonable allocation of web and flange reduction and control of cooling rate to reduce the cross-section temperature difference can reduce the H-beam residual stress.