Joining a pair of parts
US4136813A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 1977 |
| Grant date | Jan 30, 1979 |
| Priority date | — |
| Expiry date | Mar 28, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K1/19
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a method of joining a pair of parts, wherein one of the parts is formed of a carbon-containing material and the other formed of a metal at least at its surface to be joined to said one part, the parts are first assembled with the surfaces to be joined in the required joining position, with a brazing material and a flux being provided at or adjacent the surfaces to be joined. The flux is chosen so that when raised to an elevated temperature above the melting point of the brazing material, it is capable of reacting with oxides and carbon at the surface of said one part, while the brazing material is chosen so as to be capable of being heated to said elevated temperature without decomposition. The assembly is then heated at least to said elevated temperature in a non-oxidizing atmosphere so as to melt the brazing material and cause the flux to react with surface oxides and carbon on said one part whereby, on cooling, a brazed joint is produced between the parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.