Soldering flux and method
US3988175A · kind A · utility
6Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1974 |
| Grant date | Oct 26, 1976 |
| Priority date | — |
| Expiry date | Aug 23, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C2/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A reaction type flux and the method utilizing same in the soldering of aluminum containing products, particularly aluminum-zinc coated ferrous sheet and strip products. Said flux comprising a mixture consisting essentially of, parts by weight, 10 to 14 stannous chloride, 0.25 to 1.5 ammonium chloride, and 0.05 to 0.3 sodium fluoride. Such a flux mixture is characterized by a reaction temperature in the anhydrous condition of less than about 470.degree. F., preferably below about 450.degree. F., thereby permitting the application of electric iron techniques in the soldering operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.