Stirring of molten metals
US11454447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2017 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Nov 27, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D2003/0039
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Apparatus and methods for stirring a molten metal are provided. The apparatus comprising: an electromagnetic stirrer, the electromagnetic stirrer including a core, the core being provided with two or more teeth, the core being provided with two or more electrically conducting coils; connections for applying a current to the electrically conducting coils; wherein the two or more teeth have an end proximal the core and an end distal the core, the end distal the core defining a tooth end face, the tooth end face for at least one of the teeth not being aligned with the tooth end face for at least one of the other teeth. In this way the air gap between the teeth and the container in which molten metal is to be stirrer can be kept small, even with curved walls or bases to the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.