METHOD OF ASSEMBLING PIPE OR MEMBER BY TIG WELDING

PURPOSE: To provide a method for reducing corrosion of welded pipes in the case of welding a piping system feeding corrosive gases by welding while purging water or the like with an inert gas in which the content of oxidants is specified. CONSTITUTION: A first piping comprising device 3 is prepared,...

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Bibliographische Detailangaben
Hauptverfasser:	ANRI SHIEBURERU, OZAWA HIDEKAZU, TAKAGI HIDEKI, JIYAN MARII FURIITO, HATTORI TAEKO
Format:	Patent
Sprache:	eng
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PURPOSE: To provide a method for reducing corrosion of welded pipes in the case of welding a piping system feeding corrosive gases by welding while purging water or the like with an inert gas in which the content of oxidants is specified. CONSTITUTION: A first piping comprising device 3 is prepared, it is connected to an inert gas source 1, and the first piping comprising device 3 is purged by the inert gas in which the content of an oxidant consisting of oxygen and water vapor or the like is