Light metal anodization
US6797147B2 · kind B2 · utility
19Cited by
50References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 2, 2002 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Dec 29, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D11/06
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Using aqueous electrolytes containing complex fluorides or oxyfluorides such as fluorozirconates, fluorotitanates, and fluorosilicates, articles containing light metals such as magnesium and aluminum may be rapidly anodized to form protective surface coatings. White coatings may be formed on aluminum articles using pulsed direct current or alternating current. When the article to be anodized is comprised of magnesium, pulsed direct current having a relatively low average voltage is preferably used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.