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为了解决某等边角钢试轧过程中出现的腿长难以控制的问题,通过对现场工艺条件的采集和分析,采用三维制图软件建立了三维模型,采用有限元数值模拟软件对整个轧制过程进行了三维热力耦合模拟,结果与实际生产情况能够较好地吻合。借助有限元分析软件的后处理模块对孔型系统压下规程和各道次变形区内宽展方向金属流动情况进行了分析和讨论。结果表明,通过合理的分配孔型系统压下规程和优化切分孔内跨圆弧参数和蝶式孔直线段和水平段参数可控制腿过长。
In order to solve the problem that the leg length is difficult to control during the test and rolling process of an equilateral angle bar, the three-dimensional model was established by using the three-dimensional mapping software through the collection and analysis of the site process conditions. The whole rolling process was carried out by using the finite element numerical simulation software The three-dimensional thermodynamic coupling simulation, the results and the actual production can be better consistent. The post-processing module of finite element analysis software is used to analyze and discuss the pass-down rules of the pass-through system and the flow of metal in the direction of widening in each pass deformation zone. The results show that the leg length can be controlled by reasonably distributing the hole system regulation and optimizing the parameters of circular arc in the split hole and the straight and horizontal section of the butterfly hole.