包覆焊接-拉拔法铜包铝线冶金结合机理的探讨  

Mechanism Study of Clad-Welding and Drawing Method for Copper Clad Aluminum Wire Metallurgical Bonding

作　　者：戴雅康 王玉凯 刘丕家 赵正树 

机构地区：[1]大连通发新材料开发有限公司,辽宁大连116600 [2]大连通大设备技术开发有限公司,辽宁大连116000

出　　处：《电线电缆》2013年第6期1-6,共6页Wire & Cable

摘　　要：探讨了包覆焊接-拉拔法铜包铝线在拉拔工序中实现"金属键合"和退火加热工序中实现"扩散结合"的机理。研究了界面上脆性氧化膜对金属键合的影响以及脆性化合物中间相对扩散结合的影响。提出了减少金属键合的临界减面率和提高扩散结合强度和力学性能的工艺方法。Study mechanism of copper clad aluminum wire produced by clad-welding and drawing method realize ＂metallic bonding＂ during drawing process and realize ＂diffusion bonding＂ during annealing heating process. Then research on the influence of brittle oxidation film to metallic bonding and the influence of brittle compound intermedi- ate phase to diffusion bonding. Put forward the technical methods for reducing the critical reduction ratio of area of metallic bonding, and the technical methods for improving the diffusion bonding strength and mechanical property.

关 键 词：铜包铝线 冶金结合 金属键合 扩散结合 拉拔临界减面率 

分 类 号：TM244.1[一般工业技术—材料科学与工程]