CA2154638A1 - Procedure and apparatus for cold joining metallic pipes - Google Patents

Procedure and apparatus for cold joining metallic pipes

Info

Publication number
CA2154638A1
CA2154638A1 CA002154638A CA2154638A CA2154638A1 CA 2154638 A1 CA2154638 A1 CA 2154638A1 CA 002154638 A CA002154638 A CA 002154638A CA 2154638 A CA2154638 A CA 2154638A CA 2154638 A1 CA2154638 A1 CA 2154638A1
Authority
CA
Canada
Prior art keywords
pipe segments
sleeve
end faces
procedure
metallic pipes
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.)
Granted
Application number
CA002154638A
Other languages
French (fr)
Other versions
CA2154638C (en
Inventor
Alvin A. Snaper
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA002154638A priority Critical patent/CA2154638C/en
Publication of CA2154638A1 publication Critical patent/CA2154638A1/en
Application granted granted Critical
Publication of CA2154638C publication Critical patent/CA2154638C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

A method for joining together two metal pipe segments comprises placing the pipe segments in axial alignment with their end faces in close proximity to one another; bridging between the two pipe segments a metal tubular joining sleeve closely fitting to their outer walls adjacent to their end faces; surrounding the tubular sleeve adjacent to both of the end faces with an electrically conductive coil; and applying to the coil a brief electrical pulse to produce a magnetic field to shrink the sleeve onto said pipe segments. An external peripheral groove is formed in the outer wall of each of the pipe segments, and the sleeve overlaps said grooves so as to be pressed into them to increase resistance of the joined pipe segments to axial separation.
CA002154638A 1995-07-25 1995-07-25 Procedure and apparatus for cold joining metallic pipes Expired - Fee Related CA2154638C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002154638A CA2154638C (en) 1995-07-25 1995-07-25 Procedure and apparatus for cold joining metallic pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002154638A CA2154638C (en) 1995-07-25 1995-07-25 Procedure and apparatus for cold joining metallic pipes

Publications (2)

Publication Number Publication Date
CA2154638A1 true CA2154638A1 (en) 1997-01-26
CA2154638C CA2154638C (en) 2001-10-09

Family

ID=4156296

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002154638A Expired - Fee Related CA2154638C (en) 1995-07-25 1995-07-25 Procedure and apparatus for cold joining metallic pipes

Country Status (1)

Country Link
CA (1) CA2154638C (en)

Also Published As

Publication number Publication date
CA2154638C (en) 2001-10-09

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed