Aluminum alloy brazing sheet having high-strength and production method therefor
US8142907B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 15, 2008 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Jun 27, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12764
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An aluminum alloy brazing sheet having high strength comprising:a core alloy; an Al—Si-based filler alloy cladded on one side or both sides of the core alloy, wherein the core alloy is composed of an aluminum alloy containing 0.3-1.2% (mass %, the same applies the below) Si, 0.05-0.4% Fe, 0.3-1.2% Cu, 0.3-1.8% Mn, 0.05-0.6% Mg, and containing one or more elements selected from the group consisting of 0.02-0.3% Ti, 0.02-0.3% Zr, 0.02-0.3% Cr and 0.02-0.3% V, the balance of Al and unavoidable impurities; and wherein, after the aluminum alloy brazing sheet is subjected to brazing, the core alloy features a metallic structure in which a density of intermetallic compounds having a grain diameter of at least 0.1 μm is at most ten grains per μm2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.