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
牛文勇 1林保森 1郝志强 2孙涛 1李建平1
作者信息
- 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
- 折叠
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.
Abstract
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 ex-pansion during warm rolling,which can affect the control of product dimensional accuracy during pro-cessing.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 in-crease 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％.There-fore,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Key words
Cu-Fe alloys/warm rolling/width spread/reduction rate/mathematical model引用本文复制引用
基金项目
国家自然科学基金面上项目(52175293)
出版年
2024
NETL
NSTL
万方数据