锻压技术

H型钢轧制规程对端部舌形的影响

英文标题：Effect of rolling scheme on the head tongue shape of H-beam

作者：马劲红陶彬姚晓晗张健

分类号：TG335.1

出版年,卷(期):页码：2014,39(8):37-41

摘要：

在轧制过程中，由于H型钢腹板和翼缘的延伸不均匀，出现了“端部舌形”。在目前的实际生产中，端部舌形过大，切损严重，造成了极大的浪费。为了减小H型钢端部舌形长度，结合实验与现场生产的实际情况，建立合理的有限元模型，模拟热轧H型钢的万能轧制变形过程。根据模拟结果，分析端部变形的特点及金属的流动状况，并分析端部舌形的成因。通过优化轧制规程，减小H型钢端部舌形的长度。在万能轧机上进行轧制H型钢的实验。通过实验验证，优化后的轧制规程有效地减小了H型钢端部舌形的长度，因此可以减小H型钢端部的切损量，提高金属所得率。

In the rolling process of H-beam, because of the uneven elongation of flange and web, the head tongue shape is emerged. At present, in the actual product process, head tongue shape is too large, so that cutting loss is severe, which leads to great waste. In order to reduce the length of head tongue of H-beam, combined experiment with the actual site of production, the rational finite element model was established to simulate the universal hot rolling deformation process of H-beam. According to the numerical simulation result, the deformation characteristics of head, metal flow situation and origin of head tongue shape were analyzed. Through optimization of the rolling scheme of H-beam, the length of head tongue shape is reduced. Rolling experiment of H-beam was done on the universal mill. By experimental test, the rolling scheme after optimization effectively leads to the shortened length of head tongue, thus, it can reduce the cutting loss and improve the utilize rate of metal.

基金项目：

唐山市科技发展计划“H型钢端部舌形控制研究”（09110202A-1-4）

马劲红（1973-），女，博士，副教授

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