High aluminia tar-impregnated pressure pouring tubes
US5151200A · kind A · utility
5Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1991 |
| Grant date | Sep 29, 1992 |
| Priority date | — |
| Expiry date | Aug 9, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/9676
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An improved metal pouring tube especially adapted for conducting molten metal such as liquid steel, the tube being formed of carbon-impregnated ceramic-bonded refractory material principally comprising alumina, zirconia and silica. Also included is the method of forming the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.