Brazing sheet comprising an Al--Mg--Si alloy brazing material
US5234759A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1991 |
| Grant date | Aug 10, 1993 |
| Priority date | — |
| Expiry date | Oct 31, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/259
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A brazing sheet having an Al alloy core material one or each of whose surfaces is clad with a brazing material, the brazing sheet being excellent in vacuum brazing ability suitable for the manufacture of aluminum heat exchangers that have a hollow structure. The brazing material is an Al--Mg--Si alloy brazing material comprising 0.6 to 1.8 wt % of Mg, 6.0 to 20.0 wt % of Si, and the balance of Al and inevitable impurities, and having, in its metal texture, 1,000/mm.sup.2 or more Mg.sub.2 Si particles 2 to 5 .mu.m in diameter, with the particles being assumed to be spheres, and 3,000/mm.sup.2 or more Si particles 6 .mu.m or less in diameter, with the particles being assumed to be spheres.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.