Reinforced quartz cores for directional solidification casting processes
US6029736A · kind A · utility
18Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1997 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Aug 29, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C9/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A reinforced core for use in metal casting processes, especially directional solidification casting processes, comprises an elongated, thin-walled outer quartz or silica rich tubular member and a carbon base reinforcement disposed in and extending along a length of the tubular member. The carbon base reinforcement can comprise one or more graphite rods cemented together in end-to-end relation or a carbon fiber bundle. The carbon base reinforcement can include an outer carbide surface region by coating or surface reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.