Title:
METHOD FOR PRODUCING A PART FROM COMPOSITE MATERIAL BY INJECTING A FILLED SLIP INTO A FIBROUS TEXTURE
Document Type and Number:
WIPO Patent Application WO/2021/005282
Kind Code:
A3
Abstract:
A method for producing a part made of composite material comprises the following steps: injecting a slip (150) containing a powder of refractory ceramic particles (1500) under pressure into the moulding cavity (113) of injection tooling (100), draining off the liquid part of the slip (150) that has passed through the moulding cavity and keeping the powder particles (1500) inside said moulding cavity so as to form a preform (15) containing refractory particles, demoulding the preform, and heat-treating the preform in order to form a part. The injection tooling (100) comprises a mould (110) made of porous material comprising a moulding cavity (113), an enclosure (130) made of rigid material, in which enclosure the mould (110) made of porous material is held, the enclosure also comprising at least one injection port (134), at least one discharge vent (135) and at least one injection canal (1111) connecting said at least one injection port to the moulding cavity of the porous mould, for injecting the slip into the moulding cavity. The injection tooling (100) comprises a sacrificial capsule (160) made of porous material placed inside the moulding cavity (113). 25
Inventors:
DROZ NICOLAS (FR)
IGLESIAS CANO CÉLIA (FR)
LE BIEZ PHILIPPE (FR)
LIAIS LUDOVIC (FR)
IGLESIAS CANO CÉLIA (FR)
LE BIEZ PHILIPPE (FR)
LIAIS LUDOVIC (FR)
Application Number:
PCT/FR2020/051139
Publication Date:
March 25, 2021
Filing Date:
June 30, 2020
Export Citation:
Assignee:
SAFRAN AIRCRAFT ENGINES (FR)
International Classes:
B28B1/24; B28B1/26; B28B7/34; B28B11/24; B28B23/00; C04B35/00; C04B35/80; C04B41/00
Domestic Patent References:
| WO2017060601A1 | 2017-04-13 | |||
| WO2017187050A1 | 2017-11-02 |
Foreign References:
| JPH01210306A | 1989-08-23 | |||
| FR3041631A1 | 2017-03-31 | |||
| US20050058541A1 | 2005-03-17 | |||
| CN104760118A | 2015-07-08 |
Attorney, Agent or Firm:
DESORMIERE, Pierre-Louis et al. (FR)
Download PDF: