SCR法生产电工用铜杆的组织转变过程研究  

Study on Microstructure Converting of Copper Rods for Electrical Engineering Produced by SCR

作　　者：江海涛[1] 徐辉 蔡正旭[1] 刘建华[1] 

机构地区：[1]北京科技大学高效轧制国家工程研究中心,北京100083 [2]天津市华北电缆厂,天津300405

出　　处：《热加工工艺》2013年第11期30-32,共3页Hot Working Technology

基　　金：国家"十二五"镁合金支撑项目(2011BAE22B00)

摘　　要：采用金相显微镜、扫描电镜和拉伸试验机分析并研究了SCR4500生产线上铜杆的组织和性能转变。结果表明,铜杆经过多道次的轧制变形,组织发生明显变化。铜杆的晶粒尺寸随着轧制过程的进行,发生了明显的细化,晶粒尺寸达到20μm;SEM组织观察和拉伸断口分析表明,铜杆中存在Cu2O颗粒,对铜杆的性能产生不利的影响。The changes of microstructure and property of copper rods produced by SCR 4500 production line were investigated by optical microscope, scanning electron microscope （SEM） and tensile testing machine. The results show that through multi-pass rolling deformation, the microstructure of copper rods changes significantly. The grain size of the copper rods decreases significantly with rolling process; the grain size of the copper rods is 20 μm. SEM observation and analysis of tensile fracture show that Cu2O particles exist in the copper rod, which has unfavourable effect to property of the copper rod.

关 键 词：铜杆 晶粒尺寸 Cu2O颗粒 SCR4500 

分 类 号：TG335.3[金属学及工艺—金属压力加工]