焊接工艺参数对不锈钢A-TIG焊焊缝熔深的影响  

EFFECTS OF WELDING PARAMETERS ON THE PENETRATION OF AUSTENITIC STAINLESS STEEL A-TIG WELD SEAM

作　　者：胡礼木[1] 

机构地区：[1]陕西理工学院,汉中市723003

出　　处：《焊接》2006年第2期60-62,共3页Welding & Joining

基　　金：陕西省教育厅专项科研基金项目(02JK132)

摘　　要：利用自制的活性剂,考察了焊接工艺参数对奥氏体不锈钢A-TIG焊焊缝熔深的影响。结果表明:活性剂能使电弧收缩,穿透力增强,使焊缝熔深增加。在其它焊接参数不变的情况下,随着焊接电流的增加熔深增大;随着焊接速度的增加熔深减小;焊接电弧长度由2mm增加到3mm,焊缝熔深增大;由3mm增加到4mm,焊缝熔深减小。电弧收缩理论可以较好地解释试验结果。Effects of welding parameters on the penetration of austenitic stainless steel A- TIG weld seam with the home- made active flux were carried out. The result shows that the active flux leads to the contraction of arc, strong force of penetration and deep penetration. The penetration of the weld seam increases with the raise of welding current, while decreases with the raise of welding speed when other welding parameters are same. The penetration increases when the arc length changes from 2 nun to 3 ram, while decreases when the arc length changes from3 mm to4 ram. These results can be explained by the theory of arc contraction.

关 键 词：焊接工艺参数 A-TIG焊 熔深 

分 类 号：TG444.74[金属学及工艺—焊接] TG457.19