Processes of casting an ingot and making a silica container
US4218418A · kind A · utility
11Cited by
8References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1978 |
| Grant date | Aug 19, 1980 |
| Priority date | — |
| Expiry date | Aug 8, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B11/002
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Ingots are cast in silica containers in which the interior surface of the container is defined by a thin skin of high density glass behind which the silica wall varies in density and cristobalite phase content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.