铝合金交流A-TIG焊熔深增加机理的研究——导电通道电阻对焊缝熔深的影响  

MECHANISM OF WELD PENETRATION INCREASE OF AC A-TIG WELDING FOR ALUMINUM ALLOY

作　　者：黄勇[1] 樊丁[1] 

机构地区：[1]甘肃工业大学材料学院,730050

出　　处：《焊接》2003年第4期9-11,37,共4页Welding & Joining

基　　金：国家教育部骨干教师资金资助项目

摘　　要：进行了SiO2 ,Al2 O3,MnO2 ,TiO2 ,NaCl,CaF2 等 12种常见氧化物和卤化物的铝合金交流A -TIG焊 ,研究了单一组分活性剂对焊缝熔深的影响。并对这些活性剂进行了交流TIG焊电弧偏移实验 ,将电弧偏移率与A -TIG焊焊缝熔深进行了对比 ,发现铝合金交流A -TIG焊电弧中导电通道电阻对焊缝熔深的影响很大。AC A-TIG welding for aluminum alloy using 12 kinds of normal oxide and halide, including SiO 2,Al 2O 3,MnO 2,TiO 2,NaCl,CaF 2 and so on, were carried out to study the effects of mono-element activator on weld penetration, and it was found that resistance of conducting channel made great effects on weld penetration in AC A-TIG welding for aluminum alloy by experiments of AC-TIG arc excursion for these activator and comparison between the arc excursion rate and weld penetration.$$$$

关 键 词：铝合金 A-TIG焊 焊缝熔深 导电通道 电阻 电弧偏移 

分 类 号：TG457.14[金属学及工艺—焊接] TG444.7