Composition and process for desmutting and deoxidizing without smutting
US5720823A · kind A · utility
4Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1994 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | Dec 20, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23G1/125
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A chromium and ferricyanide free aqueous deoxidizer/desmutter for aluminum and magnesium alloys contains nitric acid, ferric ions, and molybdate and/or condensed molybdate anions and preferably also sulfate and fluoride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.