研究了一种高效的 TIG焊接方法 A- TIG,进行了系列 TIG焊堆焊试验 .结果表明 :在相同焊接规范下 ,涂敷表面活性剂后焊接电弧有明显收缩 ,熔池深度有显著增加 ,而熔宽稍有减小 .同时还介绍了活性剂成分的调配及活性剂成分对熔深变化的影响 ,并对熔深增加机理进行了分析 A series of TIG welding tests have been carried out on a series of TIG welding surfacing experiments, which is an efficient TIG welding method. The results show that the welding arc shrinks obviously after applying the surfactant under the same welding specifications, and the depth of the weld pool increases significantly, While the melting width decreases slightly.At the same time, it also introduces the influence of the active agent component and the active agent component on the change of the penetration depth, and analyzes the mechanism of the penetration increase