Title:
BRAZING SHEET WITH EXCELLENT CORROSION RESISTANCE AFTER BRAZING
Document Type and Number:
WIPO Patent Application WO/2016/143119
Kind Code:
A1
Abstract:
The present invention relates to an aluminum alloy brazing sheet that comprises a core material, a sacrificial material, with which one surface of the core material has been clad, and a brazing material, with which the other surface of the core material has been clad, and that has a sheet thickness of 0.30 mm or less. The aluminum alloy brazing sheet is characterized in that the core material comprises an Al-Mn-Si-based aluminum alloy containing, in terms of mass%, 0.5-1.3% Cu, the sacrificial material comprises an aluminum alloy containing, in terms of mass%, 4.0-7.0% Zn, and the brazing material comprises an aluminum alloy containing, in terms of mass%, 6.0-11.0% Si and 0.1-3.0% Zn, and that the aluminum alloy brazing sheet after a heat treatment for brazing shows such pitting potentials that a region in the core material where the potential differs by 100 mV or greater from the noblest potential accounts for 10-50% of the sheet thickness.
More Like This:
| JPH05331586 | HIGH STRENGTH ALUMINUM ALLOY |
| JP2014024104 | BRAZING FILLER METAL WITH FLUX |
| JPH1190677 | ALUMINUM ALLOY BRAZING FILLER METAL AND ALUMINUM ALLOY BRAZING SHEET |
Inventors:
ISHIGAMI SHO (JP)
IWAO SHOHEI (JP)
IWAO SHOHEI (JP)
Application Number:
PCT/JP2015/057306
Publication Date:
September 15, 2016
Filing Date:
March 12, 2015
Export Citation:
Assignee:
MITSUBISHI ALUMINIUM (JP)
International Classes:
C22C21/00; B23K35/28; C22C21/02; C22C21/10
Foreign References:
| JP2010095758A | 2010-04-30 | |||
| JP2012017503A | 2012-01-26 | |||
| JP2012117107A | 2012-06-21 | |||
| JP2011026681A | 2011-02-10 | |||
| JP2012087401A | 2012-05-10 | |||
| JP2009191351A | 2009-08-27 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
Download PDF: