JPS57143463A - Coating material having sacrificial anode effect for brazing sheet for vacuum brazing - Google Patents

Coating material having sacrificial anode effect for brazing sheet for vacuum brazing

Info

Publication number
JPS57143463A
JPS57143463A JP2904681A JP2904681A JPS57143463A JP S57143463 A JPS57143463 A JP S57143463A JP 2904681 A JP2904681 A JP 2904681A JP 2904681 A JP2904681 A JP 2904681A JP S57143463 A JPS57143463 A JP S57143463A
Authority
JP
Japan
Prior art keywords
coating material
brazing
coat
sacrificial anode
anode effect
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
JP2904681A
Other languages
Japanese (ja)
Other versions
JPS619378B2 (en
Inventor
Ichiro Iwai
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.)
Showa Aluminum Can Corp
Original Assignee
Showa Aluminum Corp
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 Showa Aluminum Corp filed Critical Showa Aluminum Corp
Priority to JP2904681A priority Critical patent/JPS57143463A/en
Publication of JPS57143463A publication Critical patent/JPS57143463A/en
Publication of JPS619378B2 publication Critical patent/JPS619378B2/ja
Granted 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
    • B23K35/286—Al as the principal constituent

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

PURPOSE:To obtain the titled coating material causing less initial corrosion and maintaining the sacrificial anode effect after brazing over a long term by adding Fe and/or Ni to a coating material made of Al-Si-Mg-In alloy as a brazing filler metal. CONSTITUTION:The titled coating material is made of Al alloy contg., by weight, at least one of 0.3-2% Fe and 0.3-2% Ni besides 4-20% Si, 0.3-4% Mg and 0.02-1% In. By adding Fe and/or Ni, H2 generated during boehmite treatment for preventing initial corrosion after vacuum brazing is inhibited from entering the interior through the grain boundaries, and a perfect chemical coat is obtd. Less than the lower limit of Fe or Ni does not produce the effect, and more than the upper limit of Fe or Ni causes defects in the coat obtd. by said treatment and tends to break the coat.
JP2904681A 1981-02-27 1981-02-27 Coating material having sacrificial anode effect for brazing sheet for vacuum brazing Granted JPS57143463A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2904681A JPS57143463A (en) 1981-02-27 1981-02-27 Coating material having sacrificial anode effect for brazing sheet for vacuum brazing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2904681A JPS57143463A (en) 1981-02-27 1981-02-27 Coating material having sacrificial anode effect for brazing sheet for vacuum brazing

Publications (2)

Publication Number Publication Date
JPS57143463A true JPS57143463A (en) 1982-09-04
JPS619378B2 JPS619378B2 (en) 1986-03-22

Family

ID=12265441

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2904681A Granted JPS57143463A (en) 1981-02-27 1981-02-27 Coating material having sacrificial anode effect for brazing sheet for vacuum brazing

Country Status (1)

Country Link
JP (1) JPS57143463A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002086293A (en) * 2000-09-12 2002-03-26 Furukawa Electric Co Ltd:The Highly corrosion resistant aluminum alloy composite material for heat exchanger and corrosion preventive aluminum alloy for heat exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002086293A (en) * 2000-09-12 2002-03-26 Furukawa Electric Co Ltd:The Highly corrosion resistant aluminum alloy composite material for heat exchanger and corrosion preventive aluminum alloy for heat exchanger
JP4596618B2 (en) * 2000-09-12 2010-12-08 古河スカイ株式会社 High corrosion resistance aluminum alloy composite for heat exchanger and anticorrosion aluminum alloy for heat exchanger

Also Published As

Publication number Publication date
JPS619378B2 (en) 1986-03-22

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