Reinforced shell mold and method
US6845811B2 · kind B2 · utility
2Cited by
27References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2003 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Nov 13, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/77
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of making a ceramic shell mold comprises repeatedly coating a fugitive pattern of an article to be cast with a ceramic slurry layer and applying on the ceramic slurry layer a refractory stucco to form a plurality of ceramic slurry layers and stucco layers on the pattern wherein at least one of the stucco layers is formed by applying discontinuous stucco fiber bundles held together in the bundles by a fugitive binder, which is removed during subsequent firing of the shell mold at elevated temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.