Title:
BRAZING SHEET FOR HEAT EXCHANGER AND HEAT EXCHANGER FOR AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/070794
Kind Code:
A1
Abstract:
A brazing sheet (10) for use in a heat exchanger of an air conditioning device comprises: a core (11) made of an aluminum (Al) alloy; an Al alloy brazing filler layer (12) that covers one surface of the core and contains Si; and an Al alloy sacrificial anode material layer (13) that covers another surface of the core and contains Zn and Si. Where the thickness of the sacrificial anode material layer (13) is in the range 15–25 μm and the temperature T at the time of joining of the brazing sheet (10) is in the range 580–660°C, the Si content XSi does not exceed a value derived from formula (1) T = 660 − 8 × exp (0.3XSi), and is at least a value derived from formula (2) T = 580 + 55 × exp (−0.5 (XSi − 1.7)).
More Like This:
| JPS58167734 | CALCIUM/ALUMINUM ALLOY |
| WO/2010/082670 | ALUMINUM ALLOY WIRE |
Inventors:
NAKAJIMA TAKAHITO
HIROTA MASANOBU
YAMAMOTO NORIAKI
HIROTA MASANOBU
YAMAMOTO NORIAKI
Application Number:
PCT/JP2020/037795
Publication Date:
April 15, 2021
Filing Date:
October 06, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
C22C21/00; B23K35/22; B23K35/28; F28D9/02; F28F19/02; F28F19/06; F28F21/08
Foreign References:
| JPH08303988A | 1996-11-22 | |||
| JP2009155679A | 2009-07-16 | |||
| JP2017145463A | 2017-08-24 | |||
| JP2014054656A | 2014-03-27 | |||
| JP2000084662A | 2000-03-28 | |||
| JP2000190089A | 2000-07-11 | |||
| JPH11199957A | 1999-07-27 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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