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Title:
HIGH CORROSION RESISTANT ALUMINUM ALLOY COMPOUND MATERIAL FOR HEAT EXCHANGER, AND METHOD OF MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2008231555
Kind Code:
A
Abstract:

To provide an Al alloy compound material having high corrosion resistance and pressure resistance strength as an Al alloy compound material for a brazing structure member of a heat exchanger.

The Al alloy compound material is prepared by laminating a brazing filler metal on one surface of a core material and hot rolling and joining the materials, in which an Al alloy containing 0.5 to 1.8% Mn, 0.3 to 1.0% Si, 0.05 to 0.25% Ti, 0.4% Fe, 0.05% Cu, and the balance Fe is used as the core material, and an Al-Si-Zn alloy is used as the brazing filler metal, and in which the Al-Mn based intermetallic compound of 0.4 m in the core material after the brazing and heating is 105 pieces/mm2.The core material containing 0.05 to 0.20% Cu is equally satisfactory. As the method for preparation, the core material is subjected to heating treatment satisfying the following formula at 450 to 520C: X={(t1/45)+(t2/27)+(t3/17)+(t4/10)+(t5/6.1)+(t6/2.5)+(t7/1.0)}x[Mn content in the core material], X1, t1 to t7 are the time period (h) when the core material exists in each temperature range segmenting the temperatures with every 10C from 450 to 520C that the core material receives during the heating treatment.


Inventors:
OTANI YOSHIYUKI
NINOMIYA JUNJI
SUZUKI YOSHIKAZU
KAKIMOTO NOBUYUKI
Application Number:
JP2007000076741
Publication Date:
October 02, 2008
Filing Date:
March 23, 2007
Export Citation:
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Assignee:
FURUKAWA SKY KK
International Classes:
C22C21/00; B23K1/00; B23K1/19; B23K35/22; C22F1/04; F28F21/08; B23K35/28; B23K35/40; B23K101/14; B23K103/10; C22F1/00
Domestic Patent References:
JPH11241136A1999-09-07
JPH0790453A1995-04-04
JPH11241133A1999-09-07
JP2003138356A2003-05-14
JPH07179971A1995-07-18
JPH04371368A1992-12-24
Attorney, Agent or Firm:
豊田 武久