BE839130A - METHOD AND DEVICE FOR MULTIFILAR INTERNAL WELDING OF COIL TUBES - Google Patents

METHOD AND DEVICE FOR MULTIFILAR INTERNAL WELDING OF COIL TUBES

Info

Publication number
BE839130A
BE839130A BE164803A BE164803A BE839130A BE 839130 A BE839130 A BE 839130A BE 164803 A BE164803 A BE 164803A BE 164803 A BE164803 A BE 164803A BE 839130 A BE839130 A BE 839130A
Authority
BE
Belgium
Prior art keywords
multifilar
internal welding
coil tubes
tubes
coil
Prior art date
Application number
BE164803A
Other languages
French (fr)
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 filed Critical
Publication of BE839130A publication Critical patent/BE839130A/en

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
    • B23K9/02—Seam welding; Backing means; Inserts
    • B23K9/032—Seam welding; Backing means; Inserts for three-dimensional seams
    • B23K9/0325—Seam welding; Backing means; Inserts for three-dimensional seams helicoidal seams

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
BE164803A 1975-03-04 1976-03-03 METHOD AND DEVICE FOR MULTIFILAR INTERNAL WELDING OF COIL TUBES BE839130A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752509875 DE2509875C3 (en) 1975-03-04 1975-03-04 Method and arrangement for multi-wire internal welding of spiral pipes

Publications (1)

Publication Number Publication Date
BE839130A true BE839130A (en) 1976-07-01

Family

ID=5940672

Family Applications (1)

Application Number Title Priority Date Filing Date
BE164803A BE839130A (en) 1975-03-04 1976-03-03 METHOD AND DEVICE FOR MULTIFILAR INTERNAL WELDING OF COIL TUBES

Country Status (6)

Country Link
JP (1) JPS51112464A (en)
BE (1) BE839130A (en)
CA (1) CA1053036A (en)
DD (1) DD123276A5 (en)
DE (1) DE2509875C3 (en)
IT (1) IT1062153B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5268728B2 (en) * 2009-03-24 2013-08-21 日新製鋼株式会社 Spiral steel pipe manufacturing method

Also Published As

Publication number Publication date
DE2509875C3 (en) 1980-06-26
DE2509875A1 (en) 1976-09-16
DD123276A5 (en) 1976-12-12
IT1062153B (en) 1983-06-30
CA1053036A (en) 1979-04-24
JPS51112464A (en) 1976-10-04
DE2509875B2 (en) 1976-12-23

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: MANNESMANNROHREN-WERKE A.G.

Effective date: 19870331