Method of manufacturing a thermostructural composite material bowl, in particular for an installation that produces silicon single crystals
US6783621B1 · kind B1 · utility
5Cited by
7References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2001 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Aug 12, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/94
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A composite material bowl 36 comprising fiber reinforcement densified by a matrix is made by winding a yarn on a preform 28 having an axial passage 30 through its bottom, densifying the preform by chemical vapor infiltration, and closing the passage by a plug 34. Prior to densification, the preform can be consolidated. A final chemical vapor infiltration step can be performed after the plug has been put into place.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.