Title:
ALUMINUM ALLOY BRAZING SHEET FOR HEAT EXCHANGERS, AND PRODUCTION METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2017/170204
Kind Code:
A1
Abstract:
Provided are: an aluminum alloy brazing sheet for heat exchangers, which exhibits excellent formability and brazability; and an advantageous production method for same. The aluminum alloy brazing sheet for heat exchangers according to the present invention is configured such that: the aluminum alloy composition of a core material and the aluminum alloy composition and temper of a brazing filler metal are respectively controlled; and the core material part of the brazing sheet is configured to have a specific electric resistivity at room temperature and a specific dispersion ratio of second-phase particles, and is configured to further exhibit certain properties in terms of the work hardening coefficient (n-value) being within a nominal strain range of 1-2% and in terms of the indentation depth when penetration cracking occurs in a bulging test using a sphere head punch of 50 mm in diameter.
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Inventors:
NAKAGAWA WATARU (JP)
TANAKA SATOSHI (JP)
TANAKA SATOSHI (JP)
Application Number:
PCT/JP2017/011960
Publication Date:
October 05, 2017
Filing Date:
March 24, 2017
Export Citation:
Assignee:
UACJ CORP (JP)
International Classes:
C22C21/00; B21B1/22; B23K35/22; B23K35/28; C22F1/04; C22F1/00
Domestic Patent References:
| WO2015104760A1 | 2015-07-16 |
Foreign References:
| JP2012224923A | 2012-11-15 | |||
| JP2011195892A | 2011-10-06 |
Other References:
See also references of EP 3438301A4
Attorney, Agent or Firm:
NAKASHIMA, Michio et al. (JP)
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