使用钨极惰性气体保护电弧焊(TIG),金属焊丝惰性气体保护焊WIG或等离子电弧焊,把两件壁厚大致相同的材质为铬—钨基的钢管熔焊在一起,相对而言是比较容易的。但是,如果两件管子的壁厚相差很多,例如简图中所示的那种薄壁波纹管和厚壁管,焊接质量的优劣则取决于焊工的经验和技能。当然,有时也 Using tungsten inert gas shielded arc welding (TIG), metal wire inert gas shielded arc welding (WIG) or plasma arc welding, two pieces of approximately the same wall thickness of chrome-tungsten-based steel tubes are welded together, relatively speaking Easy. However, the quality of the weld depends on the experience and skill of the welder if the wall thickness of the two tubes varies greatly, such as thin-walled bellow and thick-walled tubes of the type shown schematically in the drawings. Of course, sometimes too