点焊参数对制备电极复合涂层的影响  

Effect of spot welding parameter on preparation of compound coating on electrode

作　　者：于汇泳[1] 周慧琳[1] 刘丹 胡俊华[3] 

机构地区：[1]河南机电高等专科学校材料工程系,新乡市453002 [2]上海汽轮机厂有限公司,200240 [3]郑州大学材料科学与工程学院,450000

出　　处：《焊接》2012年第12期43-46,75,共4页Welding & Joining

基　　金：河南省教育厅重点项目(12A430015)

摘　　要：介绍了点焊参数对制备铝合金点焊电极表面涂层的影响。试验结果表明,利用点焊时产生的电阻热和加压作用,可在电极表面原位合成复合电极涂层。通过对试验现象、复合涂层组织分析得知,在用点焊方法制备电极复合涂层时应采用多次点焊的方法并使点焊电流和通电时间从小逐渐增大来制备,可得到成形较好的复合涂层。The effects of spot welding parameters on the preparation of surface coating on aluminum alloy spot welding electrode were introduced. The tested results show that the compound electrode coating is synthesized in situ at the electrode surface by resistance heat and pressure in spot welding process.Based on the analysis on the experimental phenomena,the structure and component of compound coating,large current and long time welding specification were used to prepare the electrode coating in spot welding method,and the better shape compound coating could be obtained.

关 键 词：点焊电极 点焊参数 组织 成分 

分 类 号：TG453[金属学及工艺—焊接]