Brazing alloy composition
US4493738A · kind A · utility
16Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1983 |
| Grant date | Jan 15, 1985 |
| Priority date | — |
| Expiry date | Feb 28, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K35/36
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A thermoplastic brazing alloy composition contains a particulate brazing alloy and a flux dispersed in a petroleum wax to form a solid suspension at room temperatures. Preferred petroleum waxes are paraffin wax and microcrystalline wax. On application to a workpiece and heating to brazing temperatures, the wax melts and leaves the brazing site and then volatilizes without leaving any carbonaceous residue and without causing any bubbling or blistering. The use of petroleum waxes is particularly useful when the flux contains a reactive material such as fluoroborate, a silicofluoride or an aluminofluoride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.