Flux-cored wire is applied to the austenitic stainless steel pipe by back weld, MAG for the filling and cosmetic weld, at horizontal fixed round welding vertically up.
采用药芯焊丝对奥氏体不锈钢管道进行打底焊接，MAG焊填充及盖面焊，立向上的水平固定全位置焊接。
In horizontal position welding, the gravity makes molten metal flow downward and sometimes causes weld defects such as undercut and overlap.
横向焊接时由于熔化金属重力的作用，会引起熔池金属下淌，从而产生咬边以及焊瘤等焊接缺陷。
The results show:The tensile residual stresses in the longitudinal weld are higher than that in the horizontal.
结果表明：平行于焊缝的残余应力大于垂直焊缝的残余应力；
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