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FR2317993A1 - Fluxless soldering of aluminium using crimped joints - where crimping deformation breaks up oxide film on molten solder - Google Patents

Fluxless soldering of aluminium using crimped joints - where crimping deformation breaks up oxide film on molten solder

Info

Publication number
FR2317993A1
FR2317993A1 FR7621593A FR7621593A FR2317993A1 FR 2317993 A1 FR2317993 A1 FR 2317993A1 FR 7621593 A FR7621593 A FR 7621593A FR 7621593 A FR7621593 A FR 7621593A FR 2317993 A1 FR2317993 A1 FR 2317993A1
Authority
FR
France
Prior art keywords
solder
oxide film
aluminium
molten solder
fluxless soldering
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.)
Withdrawn
Application number
FR7621593A
Other languages
French (fr)
Inventor
Gerald Joseph Kushner
John Henry Nininger Iii
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to FR7621596A priority Critical patent/FR2317994A2/en
Publication of FR2317993A1 publication Critical patent/FR2317993A1/en
Withdrawn legal-status Critical Current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
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/19—Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
    • 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
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/0012—Brazing heat exchangers
    • 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
    • B23K1/14—Soldering, e.g. brazing, or unsoldering specially adapted for soldering seams
    • B23K1/18—Soldering, e.g. brazing, or unsoldering specially adapted for soldering seams circumferential seams, e.g. of shells

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Coating With Molten Metal (AREA)
  • Molten Solder (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

The mating surfaces are coated with a film of solder, and then a heated froming device is employed to apply press. on the segments melting the solder and reducing its thickness to a min., together with deformation of the segments and their relative movement wrt the solder. The oxide film on the solder is ruptured and does not form a continuous layer; a good soldered joint is thud obtd. The wall segments are pref. Al, and the heat and pressure is pref. applied for 2-6 seconds esp. using a press. of >=35 kg/cm2. Used for soldered joints employed in heat exchangers.
FR7621593A 1975-07-16 1976-07-15 Fluxless soldering of aluminium using crimped joints - where crimping deformation breaks up oxide film on molten solder Withdrawn FR2317993A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7621596A FR2317994A2 (en) 1975-07-16 1976-07-15 Fluxless brazing of tubes without removing oxide film - by pretinning, connecting and applying heat and pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US59631575A 1975-07-16 1975-07-16

Publications (1)

Publication Number Publication Date
FR2317993A1 true FR2317993A1 (en) 1977-02-11

Family

ID=24386834

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7621593A Withdrawn FR2317993A1 (en) 1975-07-16 1976-07-15 Fluxless soldering of aluminium using crimped joints - where crimping deformation breaks up oxide film on molten solder

Country Status (5)

Country Link
JP (1) JPS5218447A (en)
BR (1) BR7603990A (en)
DE (1) DE2631206A1 (en)
ES (1) ES449609A1 (en)
FR (1) FR2317993A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0005880A1 (en) * 1978-05-25 1979-12-12 Koninklijke Philips Electronics N.V. Method of and apparatus for sealing tubes constructed of metals of high thermal and electrical conductivity
JPS5662409A (en) * 1979-10-26 1981-05-28 Hitachi Ltd Power amplifier
JPS6333175A (en) * 1985-08-08 1988-02-12 Sony Tektronix Corp Joining method for metallic member

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180022A (en) * 1960-09-02 1965-04-27 North American Aviation Inc Method of bonding aluminum members
FR1423129A (en) * 1964-12-04 1966-01-03 Inst Leichtbau Und Okonomische Method and machine for making welded seams on stapled sheets
US3633266A (en) * 1969-06-05 1972-01-11 Reynolds Metals Co Method of soldering aluminous component

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180022A (en) * 1960-09-02 1965-04-27 North American Aviation Inc Method of bonding aluminum members
FR1423129A (en) * 1964-12-04 1966-01-03 Inst Leichtbau Und Okonomische Method and machine for making welded seams on stapled sheets
US3633266A (en) * 1969-06-05 1972-01-11 Reynolds Metals Co Method of soldering aluminous component

Also Published As

Publication number Publication date
DE2631206A1 (en) 1977-02-03
ES449609A1 (en) 1977-07-01
BR7603990A (en) 1977-03-22
JPS5218447A (en) 1977-02-12

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Legal Events

Date Code Title Description
ST Notification of lapse