Vortex dispersing nozzle for liquefied cryogenic inert gases used in blanketing of molten metals exposed to ambient air and method
US5344478A · kind A · utility
13Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1993 |
| Grant date | Sep 6, 1994 |
| Priority date | — |
| Expiry date | Aug 2, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D27/003
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Method and apparatus for dispersing cryogenic inert gases over the surface of a bath of molten metal by separating vaporized cryogenic gas from the liquid phase of the gas and introducing the liquid phase and the gaseous phase onto the surface of the molten metal in a swirling pattern. Additional inert gas can be introduced into the middle of the liquid phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.