Method for stripping nitride coatings
US9903040B2 · kind B2 · utility
0Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2011 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Apr 16, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25F5/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Methods for stripping partially oxidized nitride wear or release coatings from metal workpieces comprise disrupting surface oxidation layers present on the coatings following use, and causing electrical current to flow from the workpiece and release coating to a counter electrode while the workpiece, release coating and counter electrode are immersed in an aqueous alkaline electrolyte solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.