JPS56160869A - Brazing method of aluminum and its alloy - Google Patents

Brazing method of aluminum and its alloy

Info

Publication number
JPS56160869A
JPS56160869A JP6231880A JP6231880A JPS56160869A JP S56160869 A JPS56160869 A JP S56160869A JP 6231880 A JP6231880 A JP 6231880A JP 6231880 A JP6231880 A JP 6231880A JP S56160869 A JPS56160869 A JP S56160869A
Authority
JP
Japan
Prior art keywords
flux
joining materials
diffusion layer
materials
suspension
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
JP6231880A
Other languages
Japanese (ja)
Other versions
JPS6365423B2 (en
Inventor
Jun Sugihara
Tadaaki Sano
Akinori Ogasawara
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.)
NIKKEI GIKEN KK
Nippon Light Metal Research Laboratory Ltd
Original Assignee
NIKKEI GIKEN KK
Nippon Light Metal Research Laboratory Ltd
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 NIKKEI GIKEN KK, Nippon Light Metal Research Laboratory Ltd filed Critical NIKKEI GIKEN KK
Priority to JP6231880A priority Critical patent/JPS56160869A/en
Publication of JPS56160869A publication Critical patent/JPS56160869A/en
Publication of JPS6365423B2 publication Critical patent/JPS6365423B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Nonmetallic Welding Materials (AREA)
  • Paints Or Removers (AREA)

Abstract

PURPOSE: To form a Zn diffusion layer on surfaces, protect apparatus and materials from corrosion and reduce working load by performing brazing in an inert gas through using the fluoride type flux contg. Zn of prescribed grain sizes mixed at specific weight ratios.
CONSTITUTION: Fluoride type flux powder of KAlF4, K3AlF6, etc. and Zn powder of 1W200μm grain sizes are agitated and suspended in liquid such as water or alcohol at (4W9):(6W1) ratios. Next, joining materials of aluminum or its alloy having been beforehand subjected to pretreatment such as degreasing are immersed in the suspension or the suspension is coated thereon. Thence, the joining materials are dried to remove the stuck liquid and to stick said mixture. Next, the joining materials are brazed at the temp. lower than the m.p. of the joining materials and higher than the m.p. of the mixture in an inert gas. At this time, at ≥60wt% Zn and ≤40wt% flux, the flux is less and the performance degrades. At ≤10wt% Zn and ≥90wt% flux, the amount of Zn is less and the effect of corrosion prevention is low. At ≤1μm grain size of Zn, the diffusion layer of Zn is difficult to form, and at ≥200μm it separates from the flux, and it is difficult to obtain the uniform Zn diffusion layer.
COPYRIGHT: (C)1981,JPO&Japio
JP6231880A 1980-05-13 1980-05-13 Brazing method of aluminum and its alloy Granted JPS56160869A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6231880A JPS56160869A (en) 1980-05-13 1980-05-13 Brazing method of aluminum and its alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6231880A JPS56160869A (en) 1980-05-13 1980-05-13 Brazing method of aluminum and its alloy

Publications (2)

Publication Number Publication Date
JPS56160869A true JPS56160869A (en) 1981-12-10
JPS6365423B2 JPS6365423B2 (en) 1988-12-15

Family

ID=13196663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6231880A Granted JPS56160869A (en) 1980-05-13 1980-05-13 Brazing method of aluminum and its alloy

Country Status (1)

Country Link
JP (1) JPS56160869A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645119A (en) * 1983-07-06 1987-02-24 Hitachi, Ltd. Method of brazing an aluminum heat exchanger
US4831701A (en) * 1985-02-12 1989-05-23 Sanden Corporation Method of making a corrosion resistant aluminum heat exchanger using a particulate flux
US4842185A (en) * 1986-04-25 1989-06-27 Mitsubishi Aluminum Co., Ltd. Method of brazing a heat exchanger using a reaction flux
US5005285A (en) * 1985-02-15 1991-04-09 Sanden Corporation Method of producing an aluminum heat exchanger
US5100048A (en) * 1991-01-25 1992-03-31 Alcan International Limited Method of brazing aluminum
KR20010001755A (en) * 1999-06-08 2001-01-05 한운택 Brazing Flux Of Non-Clad Agent Aluminum Member And Process For Preparing Thereof
KR100315579B1 (en) * 1999-06-01 2001-11-30 서남식 Production method of flux for aluminum welding
KR100525712B1 (en) * 2002-09-27 2005-11-03 모딘코리아 유한회사 Manufacturing process for clad tape and clad coating method for aluminium product
JP2007275940A (en) * 2006-04-07 2007-10-25 Denso Corp Method for manufacturing aluminum heat exchanger

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0441852Y2 (en) * 1989-11-15 1992-10-01

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645119A (en) * 1983-07-06 1987-02-24 Hitachi, Ltd. Method of brazing an aluminum heat exchanger
US4831701A (en) * 1985-02-12 1989-05-23 Sanden Corporation Method of making a corrosion resistant aluminum heat exchanger using a particulate flux
US5005285A (en) * 1985-02-15 1991-04-09 Sanden Corporation Method of producing an aluminum heat exchanger
US4842185A (en) * 1986-04-25 1989-06-27 Mitsubishi Aluminum Co., Ltd. Method of brazing a heat exchanger using a reaction flux
US5100048A (en) * 1991-01-25 1992-03-31 Alcan International Limited Method of brazing aluminum
KR100315579B1 (en) * 1999-06-01 2001-11-30 서남식 Production method of flux for aluminum welding
KR20010001755A (en) * 1999-06-08 2001-01-05 한운택 Brazing Flux Of Non-Clad Agent Aluminum Member And Process For Preparing Thereof
KR100525712B1 (en) * 2002-09-27 2005-11-03 모딘코리아 유한회사 Manufacturing process for clad tape and clad coating method for aluminium product
JP2007275940A (en) * 2006-04-07 2007-10-25 Denso Corp Method for manufacturing aluminum heat exchanger

Also Published As

Publication number Publication date
JPS6365423B2 (en) 1988-12-15

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