Method of surface treatment for metal glass part, and metal glass part with its surface treated by the method
US9175406B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 13, 2007 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Apr 2, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D5/48
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
There is provided a metallic glass component with its surface layer having both durability of a film and chromatic color properties, and a method for forming the surface layer. Surface active treatment is performed wherein the surface of the metallic glass component is reacted with a mixed aqueous solution of nitric acid and hydrofluoric acid to remove an oxide film and to provide an anchor bond shape on the surface of a metallic glass component, and electroplating or electroless plating is then performed, to form a plating film on the surface of the metallic glass component. It is thereby possible to form a surface layer of a metallic glass which has both durability and a chromatic color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.