Title:
ALUMINUM ALLOY FIN MATERIAL FOR HEAT EXCHANGERS HAVING EXCELLENT STRENGTH, CONDUCTIVITY, CORROSION RESISTANCE AND BRAZABILITY, AND HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2019/150822
Kind Code:
A1
Abstract:
Provided are: an aluminum alloy fin material for heat exchangers, which is free from brazing failure associated with fin deformation during brazing, and which has excellent strength, conductivity, corrosion resistance and brazability; and a heat exchanger. This aluminum alloy fin material for heat exchangers is formed from an aluminum alloy that has a composition which contains, in mass%, from 1.2% to 2.0% of Mn, from 0.5% to 1.3% of Si, 0.001% or more but less than 0.05% of Cu, from 0.1% to 0.5% of Fe and from 0.5% to 2.5% of Zn, with the balance made up of Al and unavoidable impurities; and this aluminum alloy fin material for heat exchangers has, at room temperature after heating for brazing, a tensile strength of 140 MPa or more, a 0.2 proof stress of 50 MPa or more, a conductivity of 42% IACS or more, a potential of from -800mV to -710 mV (inclusive), and a corrosion mass loss of 120 mg/dm2 or less after 16 weeks in a neutral salt spray test.
Inventors:
NAKANISHI SHIGEKI (JP)
IMAI YUSUKE (JP)
IWAO SHOHEI (JP)
SAJI ATSUSHI (JP)
SHINODA TAKAHIRO (JP)
IIO MASANOBU (JP)
IMAI YUSUKE (JP)
IWAO SHOHEI (JP)
SAJI ATSUSHI (JP)
SHINODA TAKAHIRO (JP)
IIO MASANOBU (JP)
Application Number:
PCT/JP2018/046965
Publication Date:
August 08, 2019
Filing Date:
December 20, 2018
Export Citation:
Assignee:
MITSUBISHI ALUMINIUM (JP)
DENSO CORP (JP)
DENSO CORP (JP)
International Classes:
C22C21/00; F28D1/053; F28F1/30; F28F21/08; C22F1/00; C22F1/04; C22F1/053
Domestic Patent References:
WO2015141698A1 | 2015-09-24 |
Foreign References:
JP2016121393A | 2016-07-07 | |||
JP2016121373A | 2016-07-07 | |||
JP2014047384A | 2014-03-17 | |||
JP2005002383A | 2005-01-06 | |||
JP2007031778A | 2007-02-08 |
Attorney, Agent or Firm:
YOKOI Koki (JP)
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