Two tier brazing for joining copper tubes to manifolds
US7293689B2 · kind B2 · utility
5Cited by
16References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2004 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Nov 16, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A brazing process for joining copper and copper alloy tubes to a fitting which includes first forming a layer of a high melting temperature noble metal on one end of a copper or copper alloy tube. The plated end is then brazed to a metal ferrule to form a copper alloy-ferrule assembly. The assembly is then furnace brazed to a metal fitting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.