Method for the preparation of a piston made of aluminum alloy with its surface treated so as not to seize on contact with a cylinder with an internal wall made of aluminum alloy
US4166776A · kind A · utility
12Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1977 |
| Grant date | Sep 4, 1979 |
| Priority date | — |
| Expiry date | Oct 31, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2201/021
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A piston made of aluminum alloy with its surface treated by anodization in a phosphoric medium, onto which a layer of an anti-friction metal is deposited by electrolysis, so that the piston does not seize on contact with a cylinder with its internal wall made of aluminum alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.