论文部分内容阅读
针对HW150mm×150mm极限规格H型钢产品偏心问题,采用有限元方法对粗轧阶段孔型系统进行三维热力耦合数值模拟。基于模拟结果分析金属流动、塑性应变及温度变化,以此为基础,根据变形特点及各孔型轧件尺寸分析偏心产生的原因,优化孔型并进行验证,最后进行现场实践,排除缺陷。结果表明,有限元模拟有助于分析轧制过程中的金属成形,尤其对于型钢轧制过程中的变形规律及缺陷分析具有较高的参考价值和指导意义。
Aimed at the eccentricity of the H-shaped steel with the specification of150mm × 150mm, the finite element method was used to simulate the three-dimensional thermal coupling of the pass system in the rough rolling stage. Based on the simulation results, the metal flow, plastic strain and temperature change were analyzed. Based on this, the eccentricity was analyzed according to the deformation characteristics and the size of each pass. The pass was optimized and validated. Finally, field practice was conducted to eliminate defects. The results show that the finite element simulation is helpful to analyze the metal forming in the rolling process, especially for the deformation rules and defect analysis during the rolling process of section steel, which has high reference value and guiding significance.