Use of electropolishing for uniform surface treatment of metal components with complex external geometries
US11136688B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2019 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Nov 21, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25F3/26
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Systems and processes for treating surfaces of metal components are provided. The systems can include a container for containing a metal workpiece having a surface with a complex external geometry and for containing a solution that has electrolytes at a flow rate that varies according to a local shape of the surface to thereby treat the surface of the metal workpiece; optionally one or more electrodes for creating an electrical field; and optionally a temperature control device configured to provide a predetermined temperature or range of temperatures. The processes can include providing a metal workpiece having a surface with a complex external geometry; and contacting the workpiece in the presence of a predetermined electrical field at a predetermined temperature with a solution containing electrolytes at a flow rate that varies according to a local shape of the surface to thereby treat the surface of the metal workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.