Metal article, method for manufacturing the metal article, and metal composite
US11629428B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2021 |
| Grant date | Apr 18, 2023 |
| Priority date | — |
| Expiry date | Aug 20, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D11/04
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A metal article comprises two metals, and a first hole and an oxide layer are set correspondingly on the surfaces of the two metals. To avoid the electrolytic corrosion on the interface between the two metals during the formation of the first hole, the disclosure provides a method of manufacturing the metal article. By putting a metal substrate in a first electrolyte including an etching agent and a passivating agent and applying electricity on the metal substrate, the metal article with the first hole is formed without electrolytic corrosion. The disclosure also provides a metal composite, which is formed by setting a material part in the first hole of the metal article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.