Continuous casting process of metal
US12157165B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2012 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | Jul 7, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A continuous casting process of a steel semi-product is provided. The process includes a step of casting using a hollow jet nozzle located between a tundish and a continuous casting mould. The nozzle includes, in its upper part, a dome for deflecting the liquid metal arriving at the inlet of the nozzle towards the internal wall of the nozzle, defining an internal volume with no liquid metal. A simultaneous step of injecting powder through a hole of the dome occurs. The powder has a particle size of 200 μm or less. The dome includes a first device to inject the powder without any contact with the dome and a second device to avoid sticking or sintering of the powder onto the first device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.