Method and apparatus for spray-forming melts of glass and glass-ceramic compositions
US7827822B2 · kind B2 · utility
2Cited by
20References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2007 |
| Grant date | Nov 9, 2010 |
| Priority date | — |
| Expiry date | Jan 30, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2999/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to a process and apparatus for forming a particulate composition, especially a particle glass composition, through the use of shock waves. A nozzle element is utilized having inlets for introduction of cold and heated gas and a delivery tube for introducing molten material. Through the introduction of the cold and heated gases, droplets are formed from a molten stream, a cone-shaped standing shock wave is formed, and shock waves are formed via a modified Hartmann-Sprenger chamber, the shock waves impinging on the droplet stream to break up the larger droplets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.