公开(公告)号：EP3112082A1

公开(公告)日：2017-01-04

申请号：EP15756051.7

申请日：2015-02-20

Applicant: Nippon Steel & Sumitomo Metal Corporation

Inventor： JOTOKU, Kana ,  HIRATA, Hiroyuki ,  OMURA, Tomohiko ,  NAKAMURA, Jun ,  OSUKI, Takahiro

IPC: B23K35/30 ,  B23K9/23 ,  C22C38/58

CPC classification number: B23K35/3066 ,  B23K9/167 ,  B23K9/173 ,  B23K9/23 ,  B23K35/30 ,  B23K35/3086 ,  B23K2101/10 ,  B23K2103/04 ,  B23K2201/10 ,  B23K2203/04 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/06 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/58

Abstract: A welded joint having high strength and good hydrogen embrittlement resistance is provided. A welded joint is a welded joint obtained by welding a base material using a welding material. The base material has a chemical composition of, in mass%: C: 0.005 to 0.1 %; Si: up to 1.2 %; Mn: 2.5 to 6.5 %; Ni: 8 to 15 %; Cr: 19 to 25 %; Mo: 0.01 to 4.5 %; V: 0.01 to 0.5 %; Nb: 0.01 to 0.5 %; Al: less than 0.05 %; N: 0.15 to 0.45 %; O: up to 0.02 %; P: up to 0.05 %; and S: up to 0.04 %, and a balance being iron and impurities, and which satisfies Equation (1). The welding material has a chemical composition which satisfies Equations (1) and (2).

        Ni+0.65Cr+0,98Mo+1.05Mn+0.35Si+12.6C≥29 ...     (1)

        0.31C+0.048Si-0.02Mn-0.056Cr+0.007Ni-0.013Mo≤1.0 ...     (2)

Abstract translation: 提供了具有高强度和良好耐氢脆性的焊接接头。 焊接接头是通过使用焊接材料焊接基材而获得的焊接接头。 基材的质量％为C：0.005〜0.1％的化学组成; Si：高达1.2％; Mn：2.5〜6.5％ Ni：8〜15％ Cr：19〜25％ Mo：0.01〜4.5％ V：0.01〜0.5％ Nb：0.01〜0.5％ Al：小于0.05％; N：0.15〜0.45％ O：高达0.02％; P：高达0.05％; 和S：高达0.04％，余量为铁和杂质，并且满足等式（1）。 焊接材料具有满足等式（1）和（2）的化学组成。 €ƒ€€ƒ€ƒ€ƒ€ƒ€ƒNi+ 0.65Cr + 0,98Mo + 1.05Mn + 0.35Si + 12.6C‰¥29 ...€ƒ€ƒ€ƒ€ƒ（1 ）€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ0.31C+ 0.048Si-0.02Mn-0.056Cr + 0.007Ni-0.013Mo‰¤1.0...€ƒ€ƒ€ƒ€ƒ （2）

公开(公告)号：EP2891537A4

公开(公告)日：2016-05-25

申请号：EP12883858

申请日：2012-08-31

Applicant: NIPPON STEEL & SUMITOMO METAL CORP

Inventor： HAMATANI HIDEKI ,  WATANABE FUMINORI ,  TSUKAKOSHI KAZUMOTO ,  MIZUHASHI NOBUO ,  ASANO TAKUYA ,  MIURA TAKAO ,  MOTOYOSHI TAKASHI ,  YAMAMOTO KAZUTO ,  TANAKA KIMIHARU

IPC: B23K13/06 ,  B23K11/00

CPC classification number: B23K13/06 ,  B23K11/0006 ,  B23K11/0873 ,  B23K11/36 ,  B23K13/046 ,  B23K2201/06 ,  B23K2201/10 ,  B23K2203/04

公开(公告)号：EP2823930A4

公开(公告)日：2016-01-20

申请号：EP12870666

申请日：2012-11-13

Applicant: NIPPON STEEL & SUMITOMO METAL CORP

Inventor： TANAKA MASAKI

IPC: B23K31/00 ,  B23K9/028

CPC classification number: G01B21/22 ,  B23K31/027 ,  B23K37/053 ,  B23K2201/10 ,  B23K2203/04

Abstract: A misalignment calculation system comprising a misalignment calculator for calculating a misalignment amount occurring in butt welding of end portions of a first steel pipe and a second steel pipe by using profile data measured in a circumferential direction on the end portion of the first steel pipe by presetting a first angle datum, and profile data measured in a circumferential direction on the end portion of the second steel pipe by presetting a second angle datum, wherein the misalignment calculator calculates the misalignment amount in a state in which an angle formed between the first angle datum and the second angle datum is adjusted to an input angle and in which the center of profile data showing an external surface geometry at an end portion of the first steel pipe is aligned with the center of the profile data showing an external surface geometry at an end portion of the second steel pipe so that a misalignment occurring when performing butt welding can be quantified and evaluated.

公开(公告)号：EP2747931B1

公开(公告)日：2015-11-18

申请号：EP12755956.5

申请日：2012-08-22

Applicant: Wartmann Technologie AG

Inventor： SCHENK, Tobias

IPC: B23K20/12 ,  B23K37/053 ,  B23K37/06 ,  F16L37/12 ,  B23K9/035

CPC classification number: B23K37/0531 ,  B23K9/035 ,  B23K20/122 ,  B23K20/126 ,  B23K37/06 ,  B23K2201/06 ,  B23K2201/10 ,  B23K2203/10 ,  F16B2/18

公开(公告)号：EP2832890A4

公开(公告)日：2015-08-19

申请号：EP13768567

申请日：2013-03-29

Applicant: JFE STEEL CORP

Inventor： SHIMAMURA JUNJI ,  NISHIMURA KIMIHIRO

IPC: C22C38/14 ,  B23K9/025 ,  B23K9/23 ,  C21D8/02 ,  C21D9/08 ,  C21D9/50 ,  C22C38/04 ,  C22C38/58

CPC classification number: C22C38/58 ,  B23K9/025 ,  B23K9/18 ,  B23K9/23 ,  B23K31/027 ,  B23K2201/06 ,  B23K2201/10 ,  B23K2203/04 ,  C21D8/02 ,  C21D8/0263 ,  C21D8/105 ,  C21D9/08 ,  C21D9/46 ,  C21D9/50 ,  C21D2211/002 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/26 ,  C22C38/28 ,  C22C38/38 ,  C22C38/40 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50

Abstract: A steel plate having a low yield ratio and high strength of an API 5L X70 grade or less, a method for manufacturing the steel plate, and a high strength welded steel pipe made of the steel plate are provided. A high strength steel plate has a low yield ratio, the steel plate having a chemical composition containing, by mass%, C: 0.03% or more and 0.08% or less, Si: 0.01% or more and 1.0% or less, Mn: 1.2% or more and 3.0% or less, P: 0.015% or less, S: 0.005% or less, Al: 0.08% or less, Nb: 0.005% or more and 0.07% or less, Ti: 0.005% or more and 0.025% or less, N: 0.010% or less, O: 0.005% or less and the balance being Fe and inevitable impurities, a metallographic structure being a dual-phase structure consisting of a bainite phase and island martensite, wherein the area fraction of the island martensite is 3% or more and 15% or less, wherein the equivalent circle diameter of the island martensite is 3.0 µm or less, and wherein the remainder of the metallographic structure is a bainite phase, a hardness variation in the thickness direction of ”HV30 or less in terms of Vickers hardness, a hardness variation in the width direction of ”HV30 or less in terms of Vickers hardness, a maximum hardness in the surface portions of the steel plate of HV230 or less in terms of Vickers hardness and a yield ratio of 85% or less and an elongation of 22% or more in a full-thickness tensile test using a test piece having a shape in accordance with GOST standards.

公开(公告)号：EP2378835A3

公开(公告)日：2015-08-05

申请号：EP11161763.5

申请日：2011-04-08

Applicant: Rapid Heat Systems Ltd

Inventor： Graham, Paul James ,  Macallister, Andrew

IPC: H05B6/10 ,  H05B6/06 ,  B23K26/42 ,  B23K9/235 ,  B23K9/028 ,  B23K26/28

CPC classification number: B23K37/0426 ,  B23K9/0282 ,  B23K9/235 ,  B23K37/053 ,  B23K2201/06 ,  B23K2201/10 ,  B23K2203/04 ,  H05B6/101

Abstract: Apparatus for pre-heating tubular articles prior to welding and a method of using the apparatus are disclosed. The apparatus comprises a support (22) for carrying tubular articles (10) such that they can be rotated together about long axis of the articles. A heater has a heating head (20) that can be placed adjacent to a region to be welded. The articles (10) can be rotated such that the region to be welded passes the heating head and is thereby heated to enable it to be welded subsequently. The heater is typically an induction heater. The method of welding tubular articles (10) compries mounting the articles in the support of a pre-heating apparatus of a welding installation embodying the invention and causing the articles to rotate such that a weld region passes adjacent to the heating head (20). Then a part of the weld region is welded after that part of the weld region has rotated past and has been heated by the heating head.

公开(公告)号：EP2831300A2

公开(公告)日：2015-02-04

申请号：EP13714503.3

申请日：2013-03-26

Applicant: Stoody Company

Inventor： WALLIN, Jack ,  MENON, Ravi ,  BARNHART, Tim

IPC: C22C38/44

CPC classification number: C22C38/44 ,  B23K9/04 ,  B23K9/16 ,  B23K35/0255 ,  B23K35/0261 ,  B23K35/0266 ,  B23K35/3053 ,  B23K35/308 ,  B23K35/3086 ,  B23K2201/10 ,  B23K2201/12 ,  B23K2201/18 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/36 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C22C38/56 ,  Y10T428/12951 ,  Y10T428/12958

Abstract: Weld deposit compositions with improved abrasion and corrosion resistance are provided by balancing percent weights of Chromium (Cr), Titanium (Ti), Niobium (Nb), and Boron (B) to allow the Chromium content of the weld matrix to be minimally reduced during carbide formation. The result is an enriched Chromium matrix that has excellent corrosion resistance in combination with highly abrasion resistant dispersed carbides.

Abstract translation: 通过平衡铬（Cr），钛（Ti），铌（Nb）和硼（B）的重量百分比来提供具有改善的耐磨损性和耐腐蚀性的焊接沉积组合物，以使焊接基体中的铬含量最小化 碳化物形成。 其结果是富含铬的基体，具有优异的耐腐蚀性和高度耐磨的分散碳化物。

公开(公告)号：EP2730365A1

公开(公告)日：2014-05-14

申请号：EP12807616.3

申请日：2012-06-20

Applicant: Nippon Steel & Sumitomo Metal Corporation

Inventor： HIRATA, Hiroyuki ,  OMURA, Tomohiko ,  TOMIO, Yusaku ,  NAKAMURA, Jun

IPC: B23K35/30 ,  B23K9/167 ,  B23K9/23 ,  C22C38/58

CPC classification number: B23K9/167 ,  B23K35/3053 ,  B23K35/308 ,  B23K35/3086 ,  B23K2201/04 ,  B23K2201/06 ,  B23K2201/10 ,  C21D9/50 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18 ,  C22C38/40 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/58 ,  Y10T403/479 ,  Y10T428/12965 ,  Y10T428/12972 ,  Y10T428/12979

Abstract: An austenitic steel welded joint is produced by welding base metal of austenitic steel having a certain chemical composition with a gas tungsten arc welding process which uses welding material of austenitic steel having a certain chemical composition. A chemical composition of weld metal comprises: C ≤ 0.1%; Si ≤ 0.8%; Mn: 1.5 to 5.5%; Ni: 8 to 15%; Cr: 18 to 24%; Al

Abstract translation: 通过使用具有一定化学成分的奥氏体钢的母材与使用具有一定化学成分的奥氏体钢的焊接材料的气体钨电弧焊接工艺来制造奥氏体钢焊接接头。 焊接金属的化学成分包括：C‰¤0.1％; Si‰¤0.8％; Mn：1.5〜5.5％ Ni：8〜15％ Cr：18〜24％ Al <0.05％; N：0.15〜0.35％ 如有必要，V‰0.5％，Nb‰0.5％，Mo‰4.5％，余量为Fe和杂质含‰0.02％，P‰‰0.05％，S‰0.03 ％，该化学成分满足[413 - 462（C + N） - 9.2Si - 8.1Mn - 13.7Cr - 9.5Ni - 18.5Mo‰-70]。 焊接金属的铁素体的面积比为20％以下。 奥氏体钢焊接接头具有高强度和优异的耐氢脆性，这是在不进行后焊接热处理的情况下在高压氢气管道中所需的特性。

公开(公告)号：EP2580510B1

公开(公告)日：2014-04-30

申请号：EP11740974.8

申请日：2011-06-10

Applicant: Subsea 7 Contracting (UK) Limited

Inventor： GLEDHILL, Peter Lockwood

IPC: F16L13/02 ,  F16L58/10 ,  F16L58/18 ,  F16J15/02

CPC classification number: F16L13/0263 ,  B23K9/0026 ,  B23K9/095 ,  B23K9/167 ,  B23K9/173 ,  B23K9/32 ,  B23K2201/10 ,  F16J15/025 ,  F16L21/02 ,  F16L29/00 ,  F16L58/1009 ,  F16L58/181

Abstract: A connector for lined pipelines includes a tube having opposed male interface elements extending inwardly from respective ends of the tube. One or more circumferential permeable chokes project radially from each male interface element. The chokes minimize flow of oxidizing fluid from the bore into the micro-annulus between the liner and the pipe while maximizing flow of fluid from the micro-annulus into the bore in the event of catastrophic pressure drop in the bore. To maintain gaps between the tube ends and the pipe liners for fluid flow, shoulder formations defined by radially-projecting bands extend circumferentially around the tube. The connector may be used in a joint arrangement where each liner includes a body section, an end section of lesser thickness and greater bore than the body section that terminates short of an end of the pipe, an inner step disposed between the body section and the end section, and an outer step disposed between the end section and the pipe.

公开(公告)号：EP2178672B1

公开(公告)日：2013-05-01

申请号：EP08774994.1

申请日：2008-07-10

Applicant: Saipem SA

Inventor： KERDILES, Eric ,  GOALABRE, Jean-Yves ,  ROCHER, Xavier

IPC: B23K9/28 ,  B23P9/04 ,  B24B39/00 ,  B24B39/02 ,  B25D17/06 ,  C21D7/06 ,  C21D9/50

CPC classification number: B23K9/282 ,  B23K2201/10 ,  B24B5/363 ,  B24B5/40 ,  B24B39/026 ,  B25D11/064 ,  B25D2250/371 ,  C21D7/04 ,  C21D9/08 ,  C21D9/50 ,  F16L1/26 ,  F16L13/02 ,  Y10T29/479