Baths and process for the chemical polishing of steel surfaces
US4652340A · kind A · utility
2Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1986 |
| Grant date | Mar 24, 1987 |
| Priority date | — |
| Expiry date | Mar 3, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F3/06
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The chemical polishing of steel surfaces is carried out by bringing the latter into contact with a bath comprising, in aqueous solution, hydrochloric acid, phosphoric acid, nitric acid and ferricyanide complex ions. The invention is in particular applicable to the polishing of vessels of large dimensions made from stainless steel alloyed with chromium and with nickel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.