Surfacing of aluminum bodies by anodic spark deposition
US6245436A · kind A · utility
16Cited by
6References
4Claims
0Family size
Inventors
Key dates
| Filing date | Feb 8, 1999 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Feb 8, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D11/026
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Aluminum or aluminum alloy bodies, such as cast fuel pump bodies, are subjected to anodic spark deposition under deposition conditions in an electrolyte effective to form an surface layer that is enriched in alpha alumina to improve surface hardness and that includes a substantially uniform distribution of lubricant-retaining, nanosize surface pores.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.