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US 11,697,180 B2Granted
Aluminum alloy brazing sheet
AssigneeMA Aluminum Corporation
InventorsShun Maruno, Michihide Yoshino, Shohei Iwao
Life of this patent
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Abstract
An aluminum alloy brazing sheet may include a sacrificial material having a function of a brazing material on at least one surface of a core material, wherein the sacrificial material has a composition containing: in a mass %, 2% to 5% of Si; 3% to 5% of Zn; and an Al balance with inevitable impurities the core material is made of an Al—Mn-based alloy, an in the core material before brazing, Al—Mn based secondary particles having an equivalent circle diameter of 100 to 400 nm are distributed with a number density of 0.3 to 5 particles/μm2.
Claims20
An aluminum alloy brazing sheet, comprising:
- a sacrificial material having a function of a brazing material on at least one surface of a core material,
- wherein the sacrificial material has a composition comprising, in mass %:
- 2.0% to 5.0% of Si;
- 3.0% to 5.0% of Zn;
- and
- Al,
- wherein the core material comprises an Al—Mn-based alloy, and
- in the core material before brazing, Al—Mn-based secondary particles having an equivalent circle diameter of 150 to 400 nm are distributed with a number density of 0.3 to 5 particles/μm2.
5 more elements
Dependencies are inferred from the claim text.