Method and coloration of parts taken among parts made of zinc, coated with zinc and made of zinc containing alloy
US4943453A · kind A · utility
0Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 1988 |
| Grant date | Jul 24, 1990 |
| Priority date | — |
| Expiry date | May 25, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2350/35
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The part is subjected to action of an acid aqueous bath in order to cause the surface of the part to be porous over a thickness which is a fraction of the thickness of the zinc which it includes, and the part is caused to adsorb at least one sealing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.