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JPS5758993A - Sealing device for back sealing gas - Google Patents

Sealing device for back sealing gas

Info

Publication number
JPS5758993A
JPS5758993A JP13424080A JP13424080A JPS5758993A JP S5758993 A JPS5758993 A JP S5758993A JP 13424080 A JP13424080 A JP 13424080A JP 13424080 A JP13424080 A JP 13424080A JP S5758993 A JPS5758993 A JP S5758993A
Authority
JP
Japan
Prior art keywords
gas
bodies
sealing
pipes
welded
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.)
Pending
Application number
JP13424080A
Other languages
Japanese (ja)
Inventor
Kenichi Tomoshige
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP13424080A priority Critical patent/JPS5758993A/en
Publication of JPS5758993A publication Critical patent/JPS5758993A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arc Welding In General (AREA)

Abstract

PURPOSE: To make versatility wide and provide a device which can be stuck tightly to the inside wall of the work by constituting the device in such a way as to feed a sealing gas into a pair of bag-like sealing bodies stuck tightly to the inside wall surface of pipes to be welded and the spaces where the groove part of the pipes to be welded locates.
CONSTITUTION: Sealing bodies 11 are inserted together with gas ejecting nozzles 14 and pressure control valves 17 into pipes 23 to be welded, and a sealing gas is fed into the bodies 11 by operating a pressure regulating valve 19 and flow rate regulating valves 21. Thereby, the bodies 11 are stuck tightly to the inside wall of the pipes 23. When the pipes 23 are butted and the sealing gas in the bodies 11 are so set as to flow out to the nozzle 14 side by operating the valve 19, the gas blows out radially from gas diffusion ports 18, and fills in the spaces 25 where a groove part 24 locates, thereby assuming a weldable state. When the welding of the 2nd layer is completed, the gas in the bodies 11 is released into the atmosphere and the body 11 is removed.
COPYRIGHT: (C)1982,JPO&Japio
JP13424080A 1980-09-29 1980-09-29 Sealing device for back sealing gas Pending JPS5758993A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13424080A JPS5758993A (en) 1980-09-29 1980-09-29 Sealing device for back sealing gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13424080A JPS5758993A (en) 1980-09-29 1980-09-29 Sealing device for back sealing gas

Publications (1)

Publication Number Publication Date
JPS5758993A true JPS5758993A (en) 1982-04-09

Family

ID=15123679

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13424080A Pending JPS5758993A (en) 1980-09-29 1980-09-29 Sealing device for back sealing gas

Country Status (1)

Country Link
JP (1) JPS5758993A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1057568A2 (en) * 1999-06-03 2000-12-06 General Electric Company Welding method and assembly therefor
EP1099504A2 (en) * 1999-11-10 2001-05-16 Jens-Uwe Gerlach Shielding device for the bottom portion of weld joints using a shield gas
JP2014079772A (en) * 2012-10-15 2014-05-08 Mitsubishi Heavy Ind Ltd Back sealing device
EP3403764A1 (en) * 2017-05-17 2018-11-21 General Electric Company Method of repairing a workpiece and masking fixture

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1057568A2 (en) * 1999-06-03 2000-12-06 General Electric Company Welding method and assembly therefor
EP1057568A3 (en) * 1999-06-03 2002-11-06 General Electric Company Welding method and assembly therefor
EP1099504A2 (en) * 1999-11-10 2001-05-16 Jens-Uwe Gerlach Shielding device for the bottom portion of weld joints using a shield gas
EP1099504A3 (en) * 1999-11-10 2002-04-03 Jens-Uwe Gerlach Shielding device for the bottom portion of weld joints using a shield gas
JP2014079772A (en) * 2012-10-15 2014-05-08 Mitsubishi Heavy Ind Ltd Back sealing device
EP3403764A1 (en) * 2017-05-17 2018-11-21 General Electric Company Method of repairing a workpiece and masking fixture
US10913138B2 (en) 2017-05-17 2021-02-09 General Electric Company Masking fixture

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