Process for producing precision hollow articles made of composite material
US6290889A · kind A · utility
9Cited by
13References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1998 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Mar 5, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C33/405
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for producing a hollow article made of a composite material of reinforcing fibers embedded in a matrix of hot-polymerized resin includes a step in which at least one core made of a silicone elastomer is draped with at least one layer of resin-impregnated reinforcing fibers. A resultant assembly is moulded to shape the internal and external surfaces of the hollow article by simultaneous inward and outward compression of at least one resin-impregnated fiber layer caused by movement of mould walls towards each other and by thermal expansion of at least one core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.