Stress and texture morphology controlling method for preparing super-hydrophobic surface of aluminum alloy by laser etching
US12017302B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2022 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Apr 19, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/703
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A stress and texture morphology controlling method for preparing a super-hydrophobic surface of an aluminum alloy by laser etching includes the following steps: pretreating a surface of an aluminum alloy; fixing a pretreated aluminum alloy to an ultrasonic vibration platform, continuously charging flowing liquid nitrogen to a to-be-machined surface of the aluminum alloy, and controlling a flow of the liquid nitrogen to cool the to-be-machined surface of the aluminum alloy and keep the to-be-machined surface of the aluminum alloy at a low temperature; keeping stable flowing of the liquid nitrogen on the to-be-machined surface of the aluminum alloy after the to-be-machined surface of the aluminum alloy is cooled, using the ultrasonic vibration platform to generate a high-frequency ultrasonic vibration field, and etching the to-be-machined surface of the aluminum alloy to form a super-hydrophobic textured micro-nano structure surface; and reducing a surface energy of the super-hydrophobic textured micro-nano structure surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.