Aluminum material for fluxfree cab brazing
US11673213B2 · kind B2 · utility
0Cited by
4References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 30, 2022 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Sep 30, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12764
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An aluminum alloy brazing sheet has a 3XXX, 1XXX or 6XXX core, an interliner and a 4XXX brazing layer without added Mg. The interliner has Bi and Mg, the magnesium migrating to the surface of the brazing sheet during brazing and reducing the aluminum oxide to facilitate brazing without flux in a controlled inert atmosphere with reduced oxygen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.