本文主要阐述了铁路货车制动管系采用不锈钢复合管的焊接,采用自动焊接专机对不同规格的复合管与接头体进行焊接,通过对焊接接头进行内表面、复合层断面、焊缝外观检查及着色检验,对管系接头进行气密性试验,认为该不锈钢复合管进行MAG专机自动焊其焊接质量安全可靠。 This article mainly elaborates the welding of the stainless steel clad pipe of the brake system of railway freight cars, the automatic welding machine is used to weld the composite pipe and the joint body of different specifications, the internal surface, the composite layer section and the appearance of the weld are examined by the welding joint Color test, the pipe joint gas tightness test, that the stainless steel composite pipe MAG welding machine automatic welding its quality and safety.