Title:
ALUMINUM ALLOY CLAD MATERIAL
Document Type and Number:
Japanese Patent JP2021011632
Kind Code:
A
Abstract:
To perform brazing stably without a flux.SOLUTION: An aluminum alloy clad material includes: a sacrificial material on one surface of a core material; and an Al-Si-Mg-Bi-based brazing material disposed on the other surface of the core material, the brazing material containing, by mass%, Si: 6.0-14.0%, Mg: 0.05-1.5%, Bi: 0.05-0.25%, Sr: 0.0001-0.1%, and the balance consisting of Al and inevitable impurities, and satisfying a relationship of (Bi+Mg)×Sr≤0.1 by mass%. Mg-Bi-based compounds contained in the Al-Si-Mg-Bi-based brazing material with a diameter of 0.1 μm or more and less than 5.0 μm in terms of equivalent circle diameter are more than 20 in number per 10,000 μm2 visual field when observed in a surface layer plane direction before brazing, and the Mg-Bi-based compounds with a diameter of 5.0 μm or more are less than 2 in number per 10,000 μm2 visual field, and the core material contains Mn: 0.9-1.7%, Si: 0.2-1.0%, Fe: 0.1-0.5%, Cu: 0.08-1.0%, and the balance consisting of Al and inevitable impurities.SELECTED DRAWING: Figure 1
Inventors:
MORI YOSHIKI
MIYAKE HIDEYUKI
YOSHINO MICHIHIDE
IWAO SHOHEI
EDO MASAKAZU
SUGIMOTO NAOMI
HOMMA NOBUHIRO
YAMADA SHOGO
TERAMOTO YUUKI
TOYAMA TAKETOSHI
MIYAKE HIDEYUKI
YOSHINO MICHIHIDE
IWAO SHOHEI
EDO MASAKAZU
SUGIMOTO NAOMI
HOMMA NOBUHIRO
YAMADA SHOGO
TERAMOTO YUUKI
TOYAMA TAKETOSHI
Application Number:
JP2020078180A
Publication Date:
February 04, 2021
Filing Date:
April 27, 2020
Export Citation:
Assignee:
MITSUBISHI ALUMINIUM
DENSO CORP
DENSO CORP
International Classes:
C22C21/00; B23K35/22; B23K35/28
Attorney, Agent or Firm:
Yuki Yokoi