GB1175181A - Improvements in or relating to the Welding of Tubes. - Google Patents

Improvements in or relating to the Welding of Tubes.

Info

Publication number
GB1175181A
GB1175181A GB3311/66A GB331166A GB1175181A GB 1175181 A GB1175181 A GB 1175181A GB 3311/66 A GB3311/66 A GB 3311/66A GB 331166 A GB331166 A GB 331166A GB 1175181 A GB1175181 A GB 1175181A
Authority
GB
United Kingdom
Prior art keywords
welding
ring
tubes
flux
binder
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
GB3311/66A
Inventor
Albert Connolly
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.)
Amec Foster Wheeler Holdings Ltd
Original Assignee
Amec Foster Wheeler Holdings 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 Amec Foster Wheeler Holdings Ltd filed Critical Amec Foster Wheeler Holdings Ltd
Priority to GB3311/66A priority Critical patent/GB1175181A/en
Publication of GB1175181A publication Critical patent/GB1175181A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/02—Welded joints
    • F16L13/0218—Welded joints having an inner or outer ring
    • F16L13/0227—Welded joints having an inner or outer ring having an inner ring
    • 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
    • B23K37/0531—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor internal pipe alignment clamps
    • 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
    • B23K9/02—Seam welding; Backing means; Inserts
    • B23K9/028—Seam welding; Backing means; Inserts for curved planar seams
    • B23K9/0282—Seam welding; Backing means; Inserts for curved planar seams for welding tube sections
    • 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
    • B23K9/02—Seam welding; Backing means; Inserts
    • B23K9/035—Seam welding; Backing means; Inserts with backing means disposed under the seam
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/06—Tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Nonmetallic Welding Materials (AREA)

Abstract

1,175,181. Welding by fusion. FOSTER WHEELER Ltd. 26 Jan., 1967 [25 Jan., 1966], No. 3311/66. Heading B3R. In a backing ring for use in fusion butt welding of tubes and made from a particulate flux bound with a binder, the binder is soluble in a solvent in which the flux is not soluble and the flux fuses at welding temperature without mixing with the weld metal. The ring consists of a particulate flux bound with water soluble sodium carboxy methyl cellulose. The ring 16 is tapered outwardly in both directions and has a central flange 20. Apertures in the ring 16 receive spacing rods 22. In use the ring 16 is positioned in tubes 10, 12, the spacing rods 22 serving to determine the welding gap. The largest diameter of the tapered parts of the ring 16 is wider than the internal diameter of the tubes 10, 12 and the width of the flange 20 is greater than the welding gap so that when located for welding the tubes 10, 12 crush the flange 20 and the adjacent parts of the ring 16 to ensure a tight fit. After tack welding the tubes 10, 12, the spacing rods 22 are removed and welding is effected by a carbon dioxide shielded metal arc. The flux fuses adjacent the weld to allow a smooth internal weld bead to form. The ring 16 is removed by dissolving the binder in water and washing the flux out of the tubes 10, 12.
GB3311/66A 1966-01-25 1966-01-25 Improvements in or relating to the Welding of Tubes. Expired GB1175181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3311/66A GB1175181A (en) 1966-01-25 1966-01-25 Improvements in or relating to the Welding of Tubes.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3311/66A GB1175181A (en) 1966-01-25 1966-01-25 Improvements in or relating to the Welding of Tubes.

Publications (1)

Publication Number Publication Date
GB1175181A true GB1175181A (en) 1969-12-23

Family

ID=9755929

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3311/66A Expired GB1175181A (en) 1966-01-25 1966-01-25 Improvements in or relating to the Welding of Tubes.

Country Status (1)

Country Link
GB (1) GB1175181A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2849914A4 (en) * 2012-05-14 2016-06-08 Megastir Technologies Llc Disposable mandrel for friction stir joining
CN107350608A (en) * 2017-08-22 2017-11-17 无锡威孚力达催化净化器有限责任公司 A kind of welding method for encapsulating three layers of thin-wall pipes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2849914A4 (en) * 2012-05-14 2016-06-08 Megastir Technologies Llc Disposable mandrel for friction stir joining
CN107350608A (en) * 2017-08-22 2017-11-17 无锡威孚力达催化净化器有限责任公司 A kind of welding method for encapsulating three layers of thin-wall pipes

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee