Method for refining magnetic domains of grain-oriented electrical steel plates, and apparatus therefor
US11065720B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2017 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Sep 28, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D10/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
By optimizing equipment and processing, magnetic domain miniaturization efficiency can be increased, workability can be improved, and processing ability can be increased through same. Provided is a method for miniaturizing the magnetic domains of a directional electric steel plate, the method comprising: a steel plate supporting roll position adjusting step of controlling the vertical direction position of a steel plate while supporting the steel plate progressing along a production line; and a laser emitting step of melting the steel plate by emitting a laser beam to form grooves on the surface of the steel plate and a removing steel plate surface step of to remove remaining spatters dropped on the surface of the steel plate after the laser emitting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.