METHOD FOR MANUFACTURING STEEL PIPE HAVING EXCELLENT CRACK RESISTANCE AT WELDED PART

The present invention relates to technology for manufacturing a steel pipe such as a line pipe, and specifically, to a steel pipe having excellent crack resistance in a welded portion and a method for manufacturing the same. 본 발명은 라인 파이프 등의 강관을 제조하는 기술에 관한 것으로서, 용접부의 균열 저항성이 우수한 강관과 이를 제조하는 방법에 관한 것...

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Bibliographische Detailangaben
Hauptverfasser:	PARK YOUNG HWAN, BAE HONG YEOL, SONG WOO HYUN
Format:	Patent
Sprache:	eng ; kor
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 WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	The present invention relates to technology for manufacturing a steel pipe such as a line pipe, and specifically, to a steel pipe having excellent crack resistance in a welded portion and a method for manufacturing the same. 본 발명은 라인 파이프 등의 강관을 제조하는 기술에 관한 것으로서, 용접부의 균열 저항성이 우수한 강관과 이를 제조하는 방법에 관한 것이다.