Cu-Fe合金薄带温轧过程中的宽展模型研究  

Research of Cu-Fe alloys strip spread model during warm rolling process

作　　者：牛文勇[1] 林保森 郝志强 孙涛[1] 李建平[1] NIU Wenyong;LIN Baosen;HAO Zhiqiang;SUN Tao;LI Jianping(State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819,China;Ansteel Iron&Steel Research Institutes,Anshan 114009,China)

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110819 [2]鞍钢集团钢铁研究院,辽宁鞍山114009

出　　处：《冶金自动化》2024年第5期73-79,共7页Metallurgical Industry Automation

基　　金：国家自然科学基金面上项目(52175293)。

摘　　要：Cu-Fe合金具有优良的性能,且Fe含量的升高还能降低成本,但高Fe含量的Cu-Fe合金在常温下属于难变形材料,利用温轧可以提高其可加工性。与冷轧不同的是,温轧时合金会发生一定宽展,这会影响加工时产品尺寸精度的控制。因此,本研究针对Cu-Fe合金,通过实验研究在不同温轧工艺下,张力、压下率和温度等因素对一定尺寸的Cu-Fe合金板材宽展的影响,开发出适用于Cu-Fe合金薄带温轧过程的宽展数学模型。结果表明,温轧过程中张力对宽展影响很小,压下率和温度的增加都会导致宽展增大,但温度的作用要大于压下率;在巴赫契诺夫宽展公式基础上进行了优化,获得了应用于Cu-Fe合金板材试样温轧的宽展模型。通过在液压张力温轧机上进行试验验证,模型误差很小,精度范围在±10%以内,因此宽展模型可以用于温轧过程Cu-Fe合金板带宽展的预测。Cu-Fe alloys has excellent properties,and the increase in Fe content can also reduce costs.However,high-Fe-content Cu-Fe alloys are difficult to deform at room temperature,and the use of warm rolling can improve their machinability.Unlike cold rolling,the alloy will have a width expansion during warm rolling,which can affect the control of product dimensional accuracy during processing.Therefore,this study aims to investigate the effects of tension,reduction rate,and temperature on the width spread of Cu-Fe alloys sheets of a certain size under different warm rolling processes through experimental research,and develop a width spread mathematical model suitable for the warm rolling process of Cu-Fe alloys thin strips.The results show that tension has a small effect on width spread during warm rolling,and the increase in reduction rate and temperature can lead to an increase in width spread,but the effect of temperature is greater than that of reduction rate.Based on the Bakhchinov width spread formula,an optimization was performed to obtain a width spread model for the warm rolling of Cu-Fe alloys sheet samples.Through experimental verification on a hydraulic tension warm rolling mill,the model error is very small,with an accuracy range of±10%.Therefore,the width spread model can be used to predict the width spread of Cu-Fe alloys sheets during the warm rolling process.

关 键 词：CU-FE合金 温轧 宽展 压下率 数学模型 

分 类 号：TG339[金属学及工艺—金属压力加工]