电焊机2018，Vol.48Issue(3)：92-96,5.DOI:10.7512/j.issn.1001-2303.2018.03.16
异种金属Al-Cu电阻钎焊接头微观组织研究
Study on microstructure of Al-Cu dissimilar metal joint by resistance soldering
刘勇 1韩晓辉 1叶结和 1李帅贞 1王素环1
作者信息
- 1. 中车青岛四方机车车辆股份有限公司,山东青岛266111
- 折叠
摘要
Abstract
It is very important for the safe operation of the train to make sound connections between the dissimilar metal joints in the high-speed train manufacturing process.In order to overcome the shortcomings of the current welding of copper and aluminum,this paper introduces a method to connect aluminum plate and copper plate by resistance soldering.Under the parameters of orthogonal test design,it is successful to braze a sample of large area after a series of experiments.At the same time,when observing the microstructure of Al-Cu resistance soldered joint using SEM,it is found that in the appropriate soldering specifications the solder material distributes and joints to the parent metal,atoms of major elements in the solder and the parent metal Al and Cu can mutual diffusion,infiltration and achieve a combination between atoms,the solder microstructure reveals no obvious defects.关键词
电阻钎焊/钎焊接头/扩散/微观组织Key words
resistance soldering/soldered joint/diffusion/microstructure分类
矿业与冶金引用本文复制引用
刘勇,韩晓辉,叶结和,李帅贞,王素环..异种金属Al-Cu电阻钎焊接头微观组织研究[J].电焊机,2018,48(3):92-96,5.
