Process for manufacturing a composite ring
US8585947B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2007 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Sep 15, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1372
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for manufacturing a composite block of closed geometry, in the form of a continuous ring, based on fibers and on a crosslinkable resin, by continuous winding and superposition of several layers of a tape of reinforcement fibers embedded in a matrix based on a composition comprising a crosslinkable resin. The process comprises from upstream to downstream, the following steps: producing a rectilinear arrangement (12) of reinforcement fibers (11) and conveying this arrangement in a feed direction (F); degassing the arrangement (12) of fibers by the action of a vacuum (13); after degassing, impregnating said arrangement (12) of fibers under vacuum with said resin composition in the liquid state (17); passing the pre-preg thus obtained through a die (20) to make said pre-preg into the form of a tape (21) composed of reinforcement fibers (11) in their liquid resin (17) matrix, the thickness of said tape being less than 0.5 mm; depositing the tape (21) onto a support (23) dictating the final shape of the composite block and winding said tape (21) around said support (23), unidirectionally, by superposition of a predetermined number Nc of layers of said tape (21) in order to dire…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.