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1. (WO2018220337) METHOD FOR UNMOULDING A COMPOSITE MATERIAL WITH AN ORGANIC MATRIX
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Pub. No.: WO/2018/220337 International Application No.: PCT/FR2018/051274
Publication Date: 06.12.2018 International Filing Date: 01.06.2018
IPC:
B29C 70/48 (2006.01) ,B29C 70/44 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
70
Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04
comprising reinforcements only, e.g. self-reinforcing plastics
28
Shaping operations therefor
40
Shaping or impregnating by compression
42
for producing articles of definite length, i.e. discrete articles
46
using matched moulds, e.g. for deforming sheet moulding compounds (SMC), prepregs
48
and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding (RTM)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
70
Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04
comprising reinforcements only, e.g. self-reinforcing plastics
28
Shaping operations therefor
40
Shaping or impregnating by compression
42
for producing articles of definite length, i.e. discrete articles
44
using isostatic pressure, e.g. pressure difference-, vacuum bag-, autoclave- or expanding rubber-moulding
Applicants:
SAFRAN AIRCRAFT ENGINES [FR/FR]; 2 Boulevard du Général Martial Valin 75015 Paris, FR
Inventors:
CAMUS, Erwan; FR
DAMBRINE, Bruno, Jacques, Gérard; FR
DAUCHIER, Martine, Marie-José; FR
Agent:
DAVID, Alain; FR
DESORMIERE, Pierre-Louis; FR
HEALY, Erwan; FR
LAIK, Eric; FR
Priority Data:
2,969,66802.06.2017CA
Title (EN) METHOD FOR UNMOULDING A COMPOSITE MATERIAL WITH AN ORGANIC MATRIX
(FR) PROCEDE DE DEMOULAGE D'UN MATÉRIAU COMPOSITE À MATRICE ORGANIQUE
Abstract:
(EN) A method for impregnating a fibrous preform with a polymer resin in an injection tool to produce a rotating part made of composite material, comprising the following steps: covering the fibrous preform (10) with a flexible membrane (30) once said fibrous preform has been wound; placing the fibrous preform thus covered with the flexible membrane in the injection tool (12); closing the injection tool with at least two counter-moulds (32A, 32B) leaving a free space (34) between the injection tool and said two counter-moulds; and filling said free space with a pressurised compaction fluid (36).
(FR) Dans un outillage d'injection un procédé d'imprégnation d'une préforme fibreuse par une résine polymère pour la fabrication d'une pièce de révolution en matériau composite, comportant les étapes suivantes :. recouvrir la préforme fibreuse (10) d'une membrane souple (30) en fin d'enroulement de cette préforme fibreuse,. placer la préforme fibreuse ainsi recouverte de la membrane souple dans l'outillage d'injection (12),. fermer l'outillage d'injection avec au moins deux contre-moules (32A, 32B) en laissant entre l'outillage d'injection et ces deux contre- moules un espace libre (34), et. remplir cet espace libre avec un fluide de compaction (36) mis sous pression.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)