Flux used for brazing aluminum-based alloy
US4906307A · kind A · utility
26Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 20, 1988 |
| Grant date | Mar 6, 1990 |
| Priority date | — |
| Expiry date | Sep 20, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K35/3605
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Fluxes for use in brazing aluminum-based alloy pieces are disclosed. One is a flux which comprises 70 to 90% wt % K.sub.2 SiF.sub.6 and 30 to 10 wt % AlF.sub.3. The other is a flux which comprises 98.5 to 94 wt % base composition which includes K.sub.2 SiF.sub.6 whose amount is 70 to 90 wt % of the base composition and AlF.sub.3 whose amount is 30 to 10 wt % of the base composition; 0.5 to 3 wt % LiF; and 1 to 3 wt % NaF. In order to facilitate the application of the flux to the pieces to be brazed, polybutene is used as a dispersing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.