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通过对线材热连轧过程传热关系进行分析,利用热力耦合弹塑性有限元方法建立了线材与轧辊的三维数值计算模型,结合热轧生产线的实际情况,对高速线材轧制生产线预精轧区六道次轧制过程中的温度场、轧制力与轧制力矩进行了模拟计算。分析了变形区内温度场的分布和变化规律,探讨了轧制过程中所涉及的几何、材料和边界条件等多重强非线性问题,计算结果为生产工艺制度的改进、工艺参数的优化以及微观组织变化规律的研究提供了理论依据,对现场生产也有重要的参考价值。
Based on the analysis of the heat transfer in the process of hot strip rolling, a three-dimensional numerical model of the wire and roll was established by means of the thermomechanically coupled elastic-plastic finite element method. Combined with the actual situation of the hot strip rolling line, The temperature field, the rolling force and the rolling torque in six-pass rolling process were simulated. The distribution and variation regularity of temperature field in the deformation zone are analyzed. The multi-nonlinear problems such as geometry, material and boundary conditions involved in the rolling process are discussed. The calculation results are the improvement of the production process system, the optimization of the process parameters and the microscopic Organizational changes in the study provides a theoretical basis for on-site production also has important reference value.