Title:
耐座屈性に優れた熱交換器用アルミニウム合金フィン材及びその製造方法
Document Type and Number:
Japanese Patent JP6978983
Kind Code:
B2
Abstract:
An aluminum alloy fin material for heat exchanger use excellent in buckling resistance which, even if the fin material is reduced to a final sheet thickness of 30 to 80 μm, is excellent in formability at the time of corrugation, has a suitable strength before brazing enabling easy fin formation, exhibits a suitable self corrosion resistance and sacrificial anode effect, and is high in strength as a material for forming working fluid passages is provided. By mass %, Si: 1.3% to 1.6%, Fe: 0.30% to 0.70%, Mn: 1.8% to 2.3%, Zn: 0.5% to 2.0%, and Ti: 0.002% to 0.10% are contained, as impurities, Mg is limited to 0.05% or less and Cu is limited to 0.06% or less, and the balance is unavoidable impurities and Al, a final sheet thickness is 30 to 80 μm, a tensile strength is 260 MPa or less, a solidus temperature is 615° C. or more, and further a tensile strength when measured after brazing heating then cooling, is 170 MPa or more and a spontaneous potential is −780 mV to −700 mV.
Inventors:
Takanori Kokubo
Toshiya Anami
Daisuke Shimosaka
Takahiro Shinoda
Nakashita Koichi
Tetsuya Yamamoto
Toshiya Anami
Daisuke Shimosaka
Takahiro Shinoda
Nakashita Koichi
Tetsuya Yamamoto
Application Number:
JP2018118103A
Publication Date:
December 08, 2021
Filing Date:
June 21, 2018
Export Citation:
Assignee:
日本軽金属株式会社
株式会社デンソー
株式会社デンソー
International Classes:
C22C21/00; C22F1/04; F28F21/08
Domestic Patent References:
| JP7070685A |
Foreign References:
| WO2015141698A1 | ||||
| WO2005075691A1 | ||||
| WO2014034212A1 |
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mitsuhashi
Fukuchi Ritsuo
Manabu Saito
Hisato Kato
Shinji Mitsuhashi
Fukuchi Ritsuo
Manabu Saito
Hisato Kato