Method and device for controlling flows in a continuous ingot mold
US7201211B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 9, 2003 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Oct 9, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/115
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention concerns a continuous casting ingot mold equipped with an immersed nozzle (3) provided with lateral outlets (2) opposite the small sides (5) of the ingot mold, and whereof the pattern of molten metal flows can be naturally in single loop or double loop, or even unstable. The invention is characterized in that it consists in using sliding magnetic fields acting, at the nozzle, on the flows of liquid metal reaching the ingot mold through the nozzle orifices, said magnetic fields being generated by polyphase linear electromagnetic field windings (14, 14′, 15, 15′) arranged opposite at least one side of the ingot mold on either side of the nozzle, preferably opposite one large side and advantageously both, so as to set, or stabilizes, a permanent pattern in double loop mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.