Title:
ALUMINUM ALLOY BRAZING SHEET AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2023/079909
Kind Code:
A1
Abstract:
The present invention provides an aluminum alloy brazing sheet which is characterized by having a core material that is formed of an aluminum alloy which contains 0.20 to 1.00% by mass of Si, 0.10 to 0.80% by mass of Mn, 0.20 to 1.00% by mass of Mg, with Mn/Si being not less than 0.10 but less than 1.00 and (Mg + Si) being not less than 0.60 but less than 1.60, while having an Fe content of 0.40% by mass or less, a Cu content of 0.25% by mass or less, a Cr content of 0.10% by mass or less, a Zn content of 2.00% by mass or less, a Ti content of 0.10% by mass or less and a Zr content of 0.10% by mass or less, with the balance being made up of aluminum and unavoidable impurities. This aluminum alloy brazing sheet is also characterized in that the tensile strength in terms of the core material by itself after heating and a low-temperature retention test, or alternatively, after heating and a high-temperature retention test is 220 MPa or more. Consequently, the present invention is able to provide an aluminum alloy brazing sheet which is capable of preventing defects due to melting of a member during brazing, while being capable of enhancing the strength of the member after the brazing.
More Like This:
Inventors:
SUZUKI TAICHI (JP)
YAMAYOSHI TOMOKI (JP)
NAKAGAWA WATARU (JP)
ANDO MAKOTO (JP)
YAMAYOSHI TOMOKI (JP)
NAKAGAWA WATARU (JP)
ANDO MAKOTO (JP)
Application Number:
PCT/JP2022/037876
Publication Date:
May 11, 2023
Filing Date:
October 11, 2022
Export Citation:
Assignee:
UACJ CORP (JP)
International Classes:
B23K35/22; B23K35/28; C22C21/00; C22F1/00; C22F1/04; C22F1/043; C22F1/047; C22F1/05
Domestic Patent References:
| WO2021157500A1 | 2021-08-12 |
Foreign References:
| JPH0611295A | 1994-01-21 | |||
| JPH0790454A | 1995-04-04 | |||
| JP2014517867A | 2014-07-24 |
Attorney, Agent or Firm:
ASHITABA INTERNATIONAL PATENT OFFICE (JP)
Download PDF: