Method for brazing aluminum alloy-assembled articles within a short period of time and a filler alloy usable at low temperature
US6840435B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 7, 2001 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Mar 30, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for brazing aluminum alloy-assembled articles with a filler alloy having a liquidus temperature of 540° C. or lower and a difference of temperature between the liquidus temperature and the solidus temperature being 100° C. or lower, wherein the highest temperature reached in the assembled article at the time of heating for brazing being set 40° C. or more higher than the liquidus temperature but 585° C. or lower. An aluminum alloy-filler alloy usable at low temperature for brazing, which comprises Si in an amount of 4.0 wt % to 8.0 wt %, Zn in an amount of 7.0 wt % to 20.0 wt % and Cu in an amount of 10.0 wt % to 35.0 wt %, with the balance being made of aluminum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.