化学镀锡层对BAg35CuZnSn钎料润湿性的影响  

Effect of electroless tin coating on wettability of BAg35CuZnSn brazing filler metal

作　　者：王星星[1] 龙伟民[1] 朱坤[1] 吕登峰[1] 董博文[1] 

机构地区：[1]郑州机械研究所新型钎焊材料与技术国家重点实验室,450001

出　　处：《焊接》2014年第9期32-35,74,共4页Welding & Joining

基　　金：国家重点基本研究发展计划(973计划)项目(2012CB723902);国家高技术研究发展计划(863计划)项目(2012AA040208)

摘　　要：将化学镀技术用于钎焊材料领域,以BAg35CuZnSn钎料为研究对象,在其表面化学镀覆金属锡层,研究化学镀施镀时间、加热温度、保温时间对BAg35CuZnSn钎料润湿性的影响。结果表明,微米锡化学镀层可改善AgCuZnSn钎料的润湿铺展性能;随着施镀时间延长,钎料的润湿铺展面积逐渐增大;随着加热温度升高,保温时间增加,BAg35CuZnSn钎料的润湿铺展面积先增大后减小。在施镀时间为10 min、加热温度为820℃、保温时间为35s时,BAg35CuZnSn钎料的润湿性较好,此时其润湿铺展面积为460mm^2。The electroless plating technology was used in brazing filler metal field.Tin coating was plated on BAg35 CuZnSn brazing filler metal.The effect of plating time,heating temperature and holding time on wettability of brazing filler metals were analyzed.The results show that the wetting area of brazing filler metal increases with the plating time being prolonged.With the increase of heating temperature or holding time,the wetting area firstly increases and then decreases.When the plating time,heating temperature and holding time are 10 min,820 ℃and 35 s,respectively,the wettability of BAg35 CuZnSn brazing filler metal is better,then the wetting area reaches up to 460 mm^2.

关 键 词：化学镀锡 钎料 润湿性 铺展面积 

分 类 号：TG425[金属学及工艺—焊接]