GB1190234A - Method of Producing Seam-Welded Pipes Using High Frequency Current - Google Patents

Method of Producing Seam-Welded Pipes Using High Frequency Current

Info

Publication number
GB1190234A
GB1190234A GB3230167A GB3230167A GB1190234A GB 1190234 A GB1190234 A GB 1190234A GB 3230167 A GB3230167 A GB 3230167A GB 3230167 A GB3230167 A GB 3230167A GB 1190234 A GB1190234 A GB 1190234A
Authority
GB
United Kingdom
Prior art keywords
edges
strip
weld point
high frequency
welding
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
GB3230167A
Inventor
Dieter Renkes
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Priority to GB3230167A priority Critical patent/GB1190234A/en
Publication of GB1190234A publication Critical patent/GB1190234A/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
    • B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
    • B23K28/02—Combined welding or cutting procedures or apparatus
    • 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
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/002—Soldering by means of induction heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

1,190,234. Welding by fusion. MANNESMANN A.G. 13 July, 1967, No. 32301/67. Heading B3R. In seam welding the edges of a strip formed into a gapped pipe the edges are advanced with a V-shaped gap between them, the edges coming together at the apex of the V, which forms the weld point, high frequency alternating current is supplied inductively or conductively ahead of the weld point to heat the strip edges which are brought together at the weld point at an acute angle without exerting pressure on each other and the energy supply and rate of welding are such that the strip edges are in a molten condition at a distance ahead of the weld point. The edges are preferably molten over part of the thickness of the edges for a distance ahead of the weld point equal to 10% of the pipe diameter and are molten over the whole thickness for a distance ahead of the weld point equal to 3 or 4 times the strip thickness. The strip may be of steel and no backing strip need be employed.
GB3230167A 1967-07-13 1967-07-13 Method of Producing Seam-Welded Pipes Using High Frequency Current Expired GB1190234A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3230167A GB1190234A (en) 1967-07-13 1967-07-13 Method of Producing Seam-Welded Pipes Using High Frequency Current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3230167A GB1190234A (en) 1967-07-13 1967-07-13 Method of Producing Seam-Welded Pipes Using High Frequency Current

Publications (1)

Publication Number Publication Date
GB1190234A true GB1190234A (en) 1970-04-29

Family

ID=10336479

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3230167A Expired GB1190234A (en) 1967-07-13 1967-07-13 Method of Producing Seam-Welded Pipes Using High Frequency Current

Country Status (1)

Country Link
GB (1) GB1190234A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees