ER308L焊丝硫含量对Ar-He混合气TIG焊焊缝成形的影响  

Effect of sulfur content in ER308L welding wire on weld shape in TIG welding with Ar-He shielding gas

作　　者：侴树国 王慧源[1] 王国佛[1] 徐亦楠 李丹辉[1] 张明辉[1] 

机构地区：[1]机械科学研究院哈尔滨焊接研究所,150028

出　　处：《焊接》2015年第6期27-29,74,共3页Welding & Joining

基　　金：国家科技重大专项基金资助项目(2012ZX06004-21);国家能源应用技术研究及工程示范项目(NY20111201-1)

摘　　要：采用钨极氩弧自动焊对硫含量不同的ER308L焊丝在不同Ar-He配比保护气条件下,研究了其焊缝成形规律。结果表明:随着S含量增大焊缝润湿性增加,当S≥0.01%时这种趋势更加明显;氦气比例在30%以下时,提高氦气配比焊缝熔宽增加,而对焊缝熔深影响不大。By using automatic TIG welding with the shielding gas of Ar- He at different proportion of Ar and He,effect of S content in ER308 L welding wire on the weld shape were studied.The results show that the wettability of welding wire increases with the S content being inceased,and this tendency is more obvious when the content of S is no less than 0.01%.As the proportion of He is less than 30%,the weld width will increase by increasing the proportion of He,but the weld depth is little change.

关 键 词：ER308L 硫含量 氩-氦混合气 TIG自动焊 

分 类 号：TG422.3[金属学及工艺—焊接]