Continuous casting of reactionary metals using a glass covering
US7484549B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2007 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | May 2, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/108
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A seal for a continuous casting furnace having a melting chamber with a mold therein for producing a metal cast includes a passage between the melting chamber and external atmosphere. As the cast moves through the passage, the cast outer surface and the passage inner surface define therebetween a reservoir for containing liquid glass or other molten material to prevent the external atmosphere from entering the melting chamber. Particulate material fed into the reservoir is melted by heat from the cast to form the molten material. The molten material coats the cast as it moves through the passage and solidifies to form a coating to protect the hot cast from reacting with the external atmosphere. Preferably, the mold has an inner surface with a cross-sectional shape to define a cross-sectional shape of the cast outer surface whereby these cross-sectional shapes are substantially the same as a cross-sectional shape of the passage inner surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.