Method of manufacturing electric resistance welding pipes having having excellent characterization of welded seams

A method of efficiently manufacturing electric resistance welding pipes having excellent characterization of welded seams is provided, by which each lateral edge of a rounded strip immediately before electric resistance welding is securely shaped with desired tapering flexibly in response to change...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	MUNEYOSHI MURAKAMI, KAZUHITO KENMOCHI, YOSHIFUMI FUJIOKA, KEI SAKATA, TAKATOSHI OKABE, HIROYUKI SHIROSAWA, YUJI SUGIMOTO, MOTOAKI EGI, TOMOHIRO INOUE, YASUO NISHIDA, HIROYASU YOKOYAMA
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PUNCHING METAL SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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