Aluminum alloy brazing sheet and manufacturing method thereof
US12269129B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2020 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Feb 6, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An aluminum alloy brazing sheet used for brazing of an aluminum material in an inert gas atmosphere or in vacuum is formed of a two-layer material in which a brazing material and a core material are stacked in this order. The core material is formed of an aluminum alloy and has a grain size of 20 to 300 μm, and the aluminum alloy includes Mn of 0.50 to 2.00 mass %, Mg of 0.40 to 2.00 mass %, Si of 1.50 mass % or less, and Fe of 1.00 mass % or less. The brazing material is formed of an aluminum alloy including Si of 4.00 to 13.00 mass % and one or two or more of Mn of 2.00 mass or less, Ti of 0.30 mass % or less, Zr of 0.30 mass % or less, and Cr of 0.30 mass % or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.