公开(公告)号：EP2020272A1

公开(公告)日：2009-02-04

申请号：EP08013744.1

申请日：2008-07-31

Applicant: Essener Hochdruck-Rohrleitungsbau GmbH

Inventor： Gräb, Thomas, Dr.

IPC: B23K9/02 ,  B23K9/028 ,  B23K9/167 ,  B23K9/29 ,  B23K101/10

CPC classification number: B23K9/0213 ,  B23K9/0286 ,  B23K9/167 ,  B23K9/291 ,  B23K9/296 ,  B23K2201/10

Abstract: Ein Verfahren zum Schweißen von Rundnähten zur Verbindung zweier Bauteile (1, 2), insbesondere von dickwandigen Bauteilen (1, 2) oder Rohren, wobei eine Wurzel in einer Engspaltfuge (3) zwischen den Bauteilen (1, 2) erzeugt wird und die Engspaltfuge (3) anschließend mittels vollmechanischem Orbitalschweißen gefüllt wird, ist im Hinblick auf eine sichere und einfach herzustellende Schweißverbindung derart weitergebildet, dass die Wurzel mittels des WIG-Verfahrens - m-141 - manuell geschweißt wird. Des Weiteren ist eine Vorrichtung zum Schweißen von Rundnähten zur Verbindung zweier Bauteile (1, 2), insbesondere von dickwandigen Bauteilen (1, 2) oder Rohren, vorzugsweise zur Durchführung des obigen Verfahrens, mit einem eine Düse aufweisenden WIG-Brenner, insbesondere manuell geführten WIG-Brenner, wobei die Düse eine zumindest abschnittsweise innerhalb der Düse angeordnete Elektrode aufweist, angegeben, wobei die Düse zumindest an ihrem freien Ende eine ovale oder rechteckige Querschnittsform aufweist.

Abstract translation: 用于焊接用于连接两个厚壁部件（1,2）或管道的圆形焊缝的方法包括在部件之间的窄间隙接头（3）中产生根部，随后通过完全填充窄间隙接头， 机械轨道焊接，并通过钨极惰性气体（WIG）焊接工艺-m-141手工焊接根部。 轨道焊接是钨酸盐惰性气体（WIG）焊接工艺-V-141。 在生产根部之后，填充窄间隙接头之前，通过钨惰性气体（TIG）焊接工艺将支撑层焊接在根部上。 用于焊接用于连接两个厚壁部件（1,2）或管道的圆形焊缝的方法包括在部件之间的窄间隙接头（3）中产生根部，随后通过完全填充窄间隙接头， 机械轨道焊接，并通过钨极惰性气体（WIG）焊接工艺-m-141手工焊接根部。 轨道焊接是钨酸盐惰性气体（WIG）焊接工艺-V-141。 在生产根部之后，填充窄间隙接头之前，通过钨惰性气体（TIG）焊接工艺将支撑层焊接在根部上。 窄间隙接头中的根间隙的宽度为0-5mm，填充区域中的窄间隙接头的倒角被选择为0-5°的侧角（α）的陡侧，更多 选择窄间隙接头的深度的50％作为陡峭的侧面，用V-接缝制备以最大45°的角度（β）选择根部区域中的窄间隙接头的倒角， deg）和/或组分由钢或镍基合金制成。 包括用于焊接用于连接两个厚壁部件或管道的圆形焊缝的装置的独立权利要求。

公开(公告)号：EP1645355B1

公开(公告)日：2009-01-14

申请号：EP04745841.9

申请日：2004-06-08

Applicant: SUMITOMO METAL INDUSTRIES, LTD.

Inventor： OGAWA, Kazuhiro c/o Sumitomo Metal Industries, Ltd ,  IGARASHI, Masaaki c/o Sumitomo Metal Industries, ,  SEMBA, Hiroyuki c/o Sumitomo Metal Industries, Ltd ,  OMURA, Tomohiko c/o Sumitomo Metal Industries, Ltd ,  MIYAHARA, Mitsuo c/o Sumitomo Metal Industries,

IPC: B23K35/30 ,  C22C38/00 ,  C22C38/58

CPC classification number: C22C38/44 ,  B23K9/173 ,  B23K35/0261 ,  B23K35/3033 ,  B23K35/3066 ,  B23K2201/06 ,  B23K2201/10 ,  B23K2201/12 ,  B23K2203/05 ,  C22C38/001 ,  C22C38/02 ,  C22C38/48 ,  C22C38/50 ,  C22C38/58 ,  Y10T428/12292 ,  Y10T428/12951 ,  Y10T428/12958 ,  Y10T428/12965 ,  Y10T428/12972

Abstract: A weld joint having a base material and a weld metal both of an austenitic steel, wherein the weld metal has a chemical composition, in mass %, that C: 0.04 % or less, Si: 1.0 % or less, Mn: 3 % or less, P: 0.02 % or less, S: 0.005 % or less, Cr: 15 to 25 %, Ni: 30 % or more, Mo: 10 % or less, Nb: 2.5 to 5 %, Al: 3.0 % or less, Ti: 0.5 % or less, and the balance: Fe and inevitable impurities, with the proviso that the contents of Al and Ti satisfy the following: (Ti + Al) > Nb/8, and wherein the base material has a chemical composition, in mass %, that C: 0.04 % or less, Si: 1.0 % or less, Mn: 3 to 30 %, P: 0.02 % or less, S: 0.005 % or less, Cr: 15 to 30 %, Ni: 5 to 30 %, N: 0.10 to 0.50% and further contains at least one of 10 % or less of Mo, 10 % or less of W, 0.001 to 1.0 % of V, 0.10 % or less of Al, 0.01 % or less of Ti, 0.01 % or less of Zr and 0.01 % or less of Hf, the balance being Fe and inevitable impurities. The weld joint is a high strength austenitic steel weld joint which exhibits excellent toughness at a low temperature and excellent resistance to hydrogen embrittlement, which are required for a piping and a vessel for high pressure hydrogen, particularly also in a welded zone.

公开(公告)号：EP1572411A1

公开(公告)日：2005-09-14

申请号：EP03767976.8

申请日：2003-12-10

Applicant: Hastings, Kim Peter ,  Cathles, Chris John

Inventor： Hastings, Kim Peter ,  Cathles, Chris John

IPC: B23K9/028

CPC classification number: B23K9/0282 ,  B23K9/028 ,  B23K9/0286 ,  B23K2201/10 ,  B23K2203/04

Abstract: A welding arrangement (5, 23) for welding pipe sections (6, 7) comprises a power supplying and gas supplying unit (7, 24), a welding unit operatively connected to the power supplying and gas supplying unit and adapted at least in part to displace about the circumference of the pipe (6, 7) during the welding operation, and means whereby the power and gas are transmitted to the welding unit through a transmitting ring (8, 27) sufficient in diameter to extend around the pipe (6, 7) during the welding operation and thereby enabling the power and gas supply unit (7, 24) to remain stationary during the welding operation.

公开(公告)号：EP1328374A1

公开(公告)日：2003-07-23

申请号：EP01988639.9

申请日：2001-10-22

Applicant: Saipem S.p.A.

Inventor： BELLONI, Antonio ,  BONASORTE, Renato

IPC: B23K37/06

CPC classification number: B23K9/0061 ,  B23K2201/10 ,  C21D9/505

Abstract: A method of laying a pipeline (6) underwater includes the steps of holding an end of a pipeline (6), providing a pipe section (5) for extending the pipeline (6), arranging the pipe section (5) adjacent to said end of pipeline (6) thereby defining a circumferential joint (7) to be welded, and welding the pipes (5, 6) together. A plurality of welding torches (9) move along the circumferential joint (7) and are operated simultaneously to weld the pipes together. The pipes (5, 6) are made of TMCP-AC steel (steel manufactured using a thermal mechanical control process with accelerated cooling and having a carbon content of less than 0.1% by weight). After the root weld is laid, a cooling ring (1) mounted on an internal clamp inside the pipes (5, 6) sprays cooling liquid, for example a fluid spray of atomised water (10) and air, from nozzles (2) onto an interior surface of the pipes (5, 6) in the region of the circumferential joint (7), thereby cooling the pipes (5, 6).

公开(公告)号：EP0803313A2

公开(公告)日：1997-10-29

申请号：EP97302522.4

申请日：1997-04-14

Applicant: Daido Tokushuko Kabushiki Kaisha

Inventor： Tsuchiya, Masaki ,  Suzuki, Hiroaki ,  Shimizu, Takao

IPC: B23K20/02 ,  B23K20/00

CPC classification number: C21D1/10 ,  B23K20/00 ,  B23K20/02 ,  B23K20/023 ,  B23K20/028 ,  B23K20/26 ,  B23K35/001 ,  B23K2201/10 ,  C21D1/74 ,  Y02P10/253

Abstract: A diffusion bonding method having a step of adjusting ends of material to be bonded before bonding the material after setting the materials in the diffusion bonding apparatus, whereas a diffusion bonding apparatus having a means of finishing ends of materials to be bonded so that both ends face parallel to each other.

公开(公告)号：EP0022605B1

公开(公告)日：1983-04-13

申请号：EP80301409.1

申请日：1980-04-30

Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA

Inventor： Yoshida, Toshio

IPC: B23K15/00 ,  B23K20/14

CPC classification number: B23K15/00 ,  B23K20/04 ,  B23K20/14 ,  B23K2201/06 ,  B23K2201/10 ,  B23K2201/14 ,  B23K2201/18 ,  B23K2201/34 ,  B23K2203/04 ,  B23K2203/05 ,  B23K2203/16 ,  B23K2203/18

公开(公告)号：EP3128030A4

公开(公告)日：2017-11-29

申请号：EP15773722

申请日：2015-03-26

Applicant: JFE STEEL CORP

Inventor： YASUDA KYONO ,  MIZUNO DAISUKE ,  NAKAMICHI HARUO ,  ISHIKAWA NOBUYUKI

IPC: C22C38/00 ,  B23K35/30 ,  C21D1/673 ,  C21D8/02 ,  C22C38/16 ,  C22C38/58

CPC classification number: C21D9/46 ,  B23K31/027 ,  B23K35/3073 ,  B23K2201/10 ,  B23K2203/04 ,  C21D1/673 ,  C21D8/0226 ,  C21D8/0263 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/42 ,  C22C38/48 ,  C22C38/50 ,  C22C38/58

Abstract: It is an object to provide an API 5L X60 to X70 grade steel material for highly deformable line pipes that exhibits superior HIC resistance in a wet hydrogen sulfide environment with a pH of 5 or more and has a low yield ratio even after coating treatment at 300°C or lower and to provide a method for manufacturing the steel material and a welded steel pipe. The steel material for highly deformable line pipes that has superior strain aging resistance and superior HIC resistance has a specific chemical composition and has a metallographic structure including ferrite, bainite, and martensite-austenite constituent. The area fraction of the martensite-austenite constituent is 0.5 to 5.0%, and the difference in hardness between the ferrite and the bainite is 60 or more in terms of Vickers hardness. Both before strain aging treatment at a temperature of 300°C or lower and after the strain aging treatment, the steel material has a uniform elongation of 9% or more and a yield ratio of 90% or less.

公开(公告)号：EP3123068A4

公开(公告)日：2017-11-22

申请号：EP15768987

申请日：2015-03-26

Applicant: CRC - EVANS PIPELINE INT INC

Inventor： RAJAGOPALAN SHANKAR ,  BOUCHE JOSE C ,  CURBO JASON W ,  KETTELKAMP JONATHON B ,  KIRK BRIAN L ,  MALLICK SIDDHARTH

IPC: F16L13/00 ,  B23K37/053 ,  F16L13/02 ,  F16L53/00

CPC classification number: B23K37/003 ,  B23K3/085 ,  B23K9/0282 ,  B23K37/0531 ,  B23K2201/10

Abstract: An internal heat exchanger (IHEX) for pipeline welding includes a drive system configured to move the IHEX into a position within at least one pipe section near a weld joint location with another pipe section. The IHEX further includes a cooling section including cooling structure configured to selectively cool one or more interior surface portions of the at least one pipe section, and a controller in communication with the cooling structure and configured to activate the cooling section when the IHEX is at the position within the at least one pipe section.

公开(公告)号：EP2808415B1

公开(公告)日：2017-11-22

申请号：EP13740715.1

申请日：2013-01-28

Applicant: Nippon Steel & Sumitomo Metal Corporation

Inventor： NAGATA, Yukinobu ,  TSURU, Eiji ,  SHINOHARA, Yasuhiro

IPC: C22C38/14 ,  F16L13/02 ,  B23K9/028 ,  C22C38/02 ,  C22C38/04 ,  C22C38/00 ,  C22C38/06 ,  C22C38/12 ,  C22C38/26 ,  C22C38/38 ,  C22C38/28 ,  F16L13/04

CPC classification number: B23K31/02 ,  B23K2201/10 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/26 ,  C22C38/28 ,  C22C38/38 ,  F16L13/02 ,  F16L13/04 ,  Y10T428/12

Abstract: A pipeline is a pipeline having plural weld zones in which ends of plural steel pipes are joined by welding, the plural steel pipes are produced from plural charges of molten steel having one or more steel compositions; yield point elongation is not present on a stress-strain curve obtained when stress is applied in a longitudinal direction of each of the steel pipes; a thickness of each of the steel pipes t (mm) and an average pipe outside-diameter D (mm) satisfy t/D×100‰¤6; and in the plurality of the weld zones, ”YS which is a yield strength difference between one steel pipe and the other steel pipe that are welded to each other (MPa), and YR representing a yield ratio that is a ratio of the yield strength to tensile strength of a pipe having a lower yield strength out of the one steel pipe and the other steel pipe, satisfy ”YS‰¤-1.75×YR+230.

公开(公告)号：EP2805793B1

公开(公告)日：2017-08-09

申请号：EP12866238.4

申请日：2012-06-15

Applicant: Hyundai Heavy Industries Co., Ltd.

Inventor： KIM, Jong Jun ,  KIM, Jong Cheol ,  MOON, Hyeong Soon

IPC: B23K37/00

CPC classification number: B23K37/0276 ,  B23K37/0217 ,  B23K37/0533 ,  B23K2201/10