薄带钢轧制过程有限元仿真分析  

Finite Element Simulation Analysis of Thin Strip Rolling Process

作　　者：李韶岗[1] 贾大朋[1] 毛召芝 Li Shaogang;Jia Dapeng;Mao Zhaozhi(MCC Capital Engineering&Research In Corporation Limited,Beijing 100176)

机构地区：[1]中冶京诚工程技术有限公司,北京100176

出　　处：《冶金设备》2022年第3期44-49,102,共7页Metallurgical Equipment

摘　　要：传统的解析计算方法很难准确地表达薄带钢轧制时板形的变化,运用有限元模型可以分析各种工况对板形的影响。本文介绍了显式动力学基础理论、材料弹塑性特性和双线性各向同性强化模型。验证了有限元分析时质量缩放技术的有效性。通过轧制过程材料特性的分析,阐述了有限元模拟时选择双线性等向强化模型符合实际情况。基于有限元分析软件建立了六辊轧机和十八辊轧机的有限元模型。通过模拟轧制过程,详细分析了六辊轧机轧制时不同工艺参数对薄带钢板形的影响。对比了六辊轧机和十八辊轧机轧制相同屈服强度带钢时板形的差异。在分析的基础上,提出了生产工艺规程的调整策略和设计时应遵循的原则。Traditional analytical calculation methods are difficult to accurately describe the change of strip shape during strip rolling. The influence of various operating conditions on strip flatness can be analyzed by using finite element model. The explicit dynamics theory, material elastic-plastic property and bilinear isotropic hardening model are introduced. The effectiveness of mass scaling technology in modeling is verified. Through analysis of material properties during rolling process, it is stated that the bilinear isotropic hardening model selected for finite element simulation conforms to the actual situation. Finite element models of six-high rolling mill and eighteen-high rolling mill were established based on finite software. By simulating the rolling process, the influence of different process parameters on strip flatness during rolling of six-high rolling mill is analyzed in detail. The strip flatness differences of strips with the same yield strength are compared between six-high rolling mill and eighteen-high rolling mill. On the basis of analysis, the adjustment strategy of production process and the principles to be followed in design are put forward.

关 键 词：显式动力学 冷轧 六辊轧机 十八辊轧机 

分 类 号：TG334.9[金属学及工艺—金属压力加工] TG335.12