ZrB2-TiB2和ZrB2-TiB2/Ni涂层对点焊电极焊接窗口的影响  

Effects of ZrB2-TiB2and ZrB2-TiB2/Ni Coatings on Welding Window of Spot Welding Electrodes

作　　者：熊灿 罗平 刘康 官旭 董仕节 XIONG Can;LUO Ping;LIU Kang;GUAN Xu;DONG Shijie(College of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China, 2. Hubei Provincial Key Laboratory of Green Materials for Light Industry, Wuhan 430068, China)

机构地区：[1]湖北工业大学材料与化学工程学院,湖北武汉430068 [2]绿色轻工材料湖北省重点实验室,湖北武汉430068

出　　处：《热加工工艺》2018年第7期185-188,共4页Hot Working Technology

基　　金：国家自然科学基金项目(51375150);博士科研启动基金项目(BSQD2015015)

摘　　要：重点探讨了ZrB_2-TiB_2和ZrB_2-TiB_2/Ni涂层对电极点焊镀锌钢板焊接窗口的影响。通过焊点温度场模拟以及试验验证发现,在点焊0.7 mm厚双面热镀锌钢板时,无涂层电极的焊接窗口最小,ZrB_2-TiB_2涂层电极次之,ZrB_2-TiB_2/Ni涂层电极在三者中具有最大的焊接窗口。The effects of ZrB_2-TiB_2 and ZrB_2-TiB_2/Ni coatings on the welding window of electrode spot welding galvanized steel sheet were emphatically discussed. Through the simulation of solder joint temperature field and experimental verification, the results show that when welding 0.7 mm thick double faced hot-dip galvanized steel sheet, the welding window of uncoated electrode is the smallest, that of ZrB_2-TiB_2 coated electrode is secondary and that of ZrB_2-TiB_2/Ni coated electrode is the largest of the three electrodes.

关 键 词：涂层电极 电阻点焊 焊接窗口 

分 类 号：TG453[金属学及工艺—焊接]