Title:
ALUMINUM ALLOY BRAZING FIN MATERIAL FOR HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2006/087823
Kind Code:
A1
Abstract:
An aluminum alloy brazing fin material for an automobile heat exchanger, which comprises a core material and, being clad on the both surfaces thereof, an Al-Si based alloy brazing material, characterized in that the above core material is composed of an aluminum alloy having a chemical composition that Mn: 0.8 to 2.5 %, Si: 0.1 to 1.0 %, Fe: 0.06 to 0.3 %, Zn: 0.8 to 4.0 % and the balance: Al and impurities, and the above brazing material is composed of an aluminum alloy having a chemical composition that Si: 6 to 13 %, Cu: 0.06 to 0.4 % and the balance: Al and impurities, and that the brazing material is clad on both surfaces of the core material with a thickness of 3 to 20 % of the total thickness, respectively. The above aluminum alloy brazing fin material for an automobile heat exchanger exhibits excellent formability and excellent corrosion resistance even under a severe corrosion circumstance.
Inventors:
SUZUKI YUJI (JP)
SHOJI YOSHIFUSA (JP)
FUKUDA TOSHIHIKO (JP)
SHOJI YOSHIFUSA (JP)
FUKUDA TOSHIHIKO (JP)
Application Number:
PCT/JP2005/002953
Publication Date:
August 24, 2006
Filing Date:
February 17, 2005
Export Citation:
Assignee:
SUMITOMO LIGHT METAL IND (JP)
SUZUKI YUJI (JP)
SHOJI YOSHIFUSA (JP)
FUKUDA TOSHIHIKO (JP)
SUZUKI YUJI (JP)
SHOJI YOSHIFUSA (JP)
FUKUDA TOSHIHIKO (JP)
International Classes:
F28F21/08; B23K1/00; C22C21/00
Foreign References:
| JP2004170061A | 2004-06-17 | |||
| JP2004084060A | 2004-03-18 | |||
| JPH076045B2 | 1995-01-25 |
Attorney, Agent or Firm:
Fukuda, Yasuo (1-16 Kanda Suda-ch, Chiyoda-ku Tokyo 41, JP)
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