GB952952A - Method of and apparatus for use in welding pipe joints - Google Patents

Method of and apparatus for use in welding pipe joints

Info

Publication number
GB952952A
GB952952A GB1014962A GB1014962A GB952952A GB 952952 A GB952952 A GB 952952A GB 1014962 A GB1014962 A GB 1014962A GB 1014962 A GB1014962 A GB 1014962A GB 952952 A GB952952 A GB 952952A
Authority
GB
United Kingdom
Prior art keywords
pipes
welding
pocket
inflatable
seam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1014962A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ROY MARSHALL BROWN
BP PLC
Original Assignee
ROY MARSHALL BROWN
BP PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ROY MARSHALL BROWN, BP PLC filed Critical ROY MARSHALL BROWN
Priority to GB1014962A priority Critical patent/GB952952A/en
Publication of GB952952A publication Critical patent/GB952952A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • B23K9/162—Arc welding or cutting making use of shielding gas making use of a stationary fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/32—Accessories
    • B23K9/325—Devices for supplying or evacuating shielding gas
    • B23K9/326—Purge gas rings, i.e. devices for supplying or evacuating shielding gas inside of hollow or tubular articles, e.g. pipes, vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

952,952. Welding by fusion. BRITISH PETROLEUM CO. Ltd., and R. M. BROWN. Feb. 7, 1963 [March 16, 1962], No. 10149/62. Heading B3R. Prior to welding pipes end-to-end, an interior portion of the pipes around the joint is isolated by inflating one or more inflatable members and the portion is filled with a substance, e.g., an inert gas or a flux, for aiding the welding. An inflatable member 10 is formed by forming weld seams along the lines shown in full in Fig. 1, in a pair of superimposed layers of plastic or metal, e.g. aluminium, foil, to form a pocket 15 extending along both sides and an end of the member 10. This end is narrower and fits within the other end when inflated as shown in Fig. 2. The inflatable member 10 is located in a pipe 25 by adhesive strip 32 and a fusible insert of the same metal as the pipes 24, 25 is positioned at the root of the seam. Inflation is effected through a tube connected to the pocket 15 or by a substance in the pocket 15 during preheating of the pipes. Inert gas, e.g., argon, is fed through a tube 31 in the insert to the space enclosed by the member 10 and the seam is welded by a gas shielded arc welding torch 27. Subsequently the joint is stress-relieved at a temperature that causes the member 10 to collapse or melt and the member 10 is washed away during hydrostatic testing of the weld.
GB1014962A 1962-03-16 1962-03-16 Method of and apparatus for use in welding pipe joints Expired GB952952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1014962A GB952952A (en) 1962-03-16 1962-03-16 Method of and apparatus for use in welding pipe joints

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1014962A GB952952A (en) 1962-03-16 1962-03-16 Method of and apparatus for use in welding pipe joints

Publications (1)

Publication Number Publication Date
GB952952A true GB952952A (en) 1964-03-18

Family

ID=9962424

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1014962A Expired GB952952A (en) 1962-03-16 1962-03-16 Method of and apparatus for use in welding pipe joints

Country Status (1)

Country Link
GB (1) GB952952A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361972A (en) * 1992-12-21 1994-11-08 Barker Michael R Purge strap for welding
US5726408A (en) * 1995-06-07 1998-03-10 The Babcock & Wilcox Company Weld backing ring for nozzle repairs
GB2420837A (en) * 2004-12-01 2006-06-07 Martyn James Smith Inflatable pipe welding back shield device
CN107584194A (en) * 2017-11-01 2018-01-16 上海沪东三造船舶配套有限公司 The welding method of high intensity crack arrest steel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361972A (en) * 1992-12-21 1994-11-08 Barker Michael R Purge strap for welding
US5726408A (en) * 1995-06-07 1998-03-10 The Babcock & Wilcox Company Weld backing ring for nozzle repairs
GB2420837A (en) * 2004-12-01 2006-06-07 Martyn James Smith Inflatable pipe welding back shield device
GB2420837B (en) * 2004-12-01 2010-03-03 Martyn James Smith Device for blocking-off part of interior of a pipe
CN107584194A (en) * 2017-11-01 2018-01-16 上海沪东三造船舶配套有限公司 The welding method of high intensity crack arrest steel

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