Cyanide free solution and process for removing gold-nickel braze
US4274908A · kind A · utility
17Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1980 |
| Grant date | Jun 23, 1981 |
| Priority date | — |
| Expiry date | May 15, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F1/44
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An effective cyanide free solution and process for removing gold-nickel braze alloys from superalloy parts are described. The solution contains about 50% nitric acid with intentional additions of materials which ionize to provide chloride ions, sulfate ions, and metal ions in specific concentrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.