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1. WO2020196646 - WELDED PIPE MANUFACTURING METHOD, AND WELDED PIPE MANUFACTURING DEVICE

Publication Number WO/2020/196646
Publication Date 01.10.2020
International Application No. PCT/JP2020/013392
International Filing Date 25.03.2020
IPC
B23K 26/262 2014.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
20Bonding
21by welding
24Seam welding
26of rectilinear seams
262of longitudinal seams of tubes
B21C 37/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
37Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
06of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
08Making tubes with welded or soldered seams
B23K 26/08 2014.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
08Devices involving relative movement between laser beam and workpiece
B23K 26/21 2014.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
20Bonding
21by welding
B23K 26/60 2014.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
60Preliminary treatment
Applicants
  • 日立金属株式会社 HITACHI METALS, LTD. [JP]/[JP]
Inventors
  • 山根 大宜 YAMANE, Hironori
  • 與川 貴広 YOKAWA, Takahiro
  • 佐々木 淳 SASAKI, Makoto
Agents
  • 山尾 憲人 YAMAO, Norihito
Priority Data
2019-06025927.03.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) WELDED PIPE MANUFACTURING METHOD, AND WELDED PIPE MANUFACTURING DEVICE
(FR) PROCÉDÉ DE FABRICATION DE TUYAU SOUDÉ ET DISPOSITIF DE FABRICATION DE TUYAU SOUDÉ
(JA) 溶接管の製造方法及び溶接管の製造装置
Abstract
(EN)
In this method for manufacturing a welded pipe by bending a stainless steel strip having a thickness of 0.15 mm or more and 0.45 mm or less while conveying the stainless steel strip in one direction, to form a pipe, and welding abutting portions of the formed pipe by irradiating the same with a laser beam while applying compressive stress thereto by means of a set of squeeze rollers: the laser beam irradiation position is on the upstream side, in the pipe conveying direction, of the position of an axis of rotation of the squeeze rollers; the size of the spot diameter of the laser beam at the laser beam irradiation position is at least equal to 0.60 mm and at most equal to 1.2 mm; and an inert gas is blown from a gas nozzle onto the abutting portions irradiated by the laser beam.
(FR)
Dans le présent procédé de fabrication concerne un tuyau soudé par cintrage d'une bande d'acier inoxydable ayant une épaisseur de 0,15 mm ou plus et 0,45 mm ou moins tout en transportant la bande d'acier inoxydable dans une direction, pour former un tuyau, et souder des parties de butée du tuyau formé par irradiation de celui-ci avec un faisceau laser tout en appliquant une contrainte de compression à celui-ci au moyen d'un ensemble de rouleaux de compression : la position d'irradiation de faisceau laser se trouve sur le côté amont, dans la direction de transport de tuyau, de la position d'un axe de rotation des rouleaux de compression ; la taille du diamètre de point du faisceau laser au niveau de la position d'irradiation de faisceau laser est au moins égale à 0,60 mm et au plus égale à 1,2 mm ; et un gaz inerte est soufflé à partir d'une buse de gaz sur les parties de butée irradiées par le faisceau laser.
(JA)
厚さが0.15mm以上、0.45mm以下のステンレス鋼帯を一方向に搬送しながら曲げ加工して管を成形し、成形された前記管の突合せ部に一組のスクイズロールによって圧縮応力を加えながらレーザビームを照射して溶接する溶接管の製造方法であって、前記レーザビームの照射位置が前記スクイズロールの回転軸の位置よりも管の搬送方向の上流側にあり、前記レーザビームの照射位置における前記レーザビームのスポット径の大きさが0.60mm以上、1.2mm以下であり、前記レーザビームが照射された前記突合せ部にガスノズルから不活性ガスを吹き付ける溶接管の製造方法。
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