High-ductility periodic variable alloy protective film and forming method thereof
US11072853B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2018 |
| Grant date | Jul 27, 2021 |
| Priority date | — |
| Expiry date | Jan 13, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2508/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The disclosure provides a metal protective layer, sequentially comprising an organic powder coating, a high-gloss organic coating, a ductile periodic variable alloy protective film and a transparent powder coating, wherein the base powder layer is an epoxy resin or pure polyester powder coating; the high-gloss organic coating is an epoxy resin powder coating, a polyester powder coating, or a polybutadiene organic coating; the ductile periodic variable alloy protective film is formed by direct current magnetron sputtering with two targets in a high vacuum environment, and the material of the targets is composed of a Ni—Cr alloy layer and pure Cr; and the transparent powder layer is an acrylic powder coating or a polyester transparent powder coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.