Construction method for a tubular member of a nuclear power plant

A construction method of a pipeline that forms a pipeline by joining tubular members to each other by butt welding, includes: a tubular member preparation step for preparing a tubular member (10,11) having a smooth length of an outer surface (5) along an axial direction (O1) from a joined end (10a,1...

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Bibliographische Detailangaben
Hauptverfasser: MATSUURA, TAKAYUKI, KAWASE, NAOTO, SEKI, ISAO
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A construction method of a pipeline that forms a pipeline by joining tubular members to each other by butt welding, includes: a tubular member preparation step for preparing a tubular member (10,11) having a smooth length of an outer surface (5) along an axial direction (O1) from a joined end (10a,11a), which is set based on conditions of ultrasonic inspection of a welded portion (M), which are determined by usage condition of the pipeline (R); a tubular member welding step for welding together prepared tubular member (10,11); and a welded portion inspection step for inspecting a welded portion (M) by ultrasonic inspection.