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1. (WO2019043335) METHOD FOR FORMING AND METHOD FOR IMPREGNATING A FIBROUS PREFORM
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/043335 International Application No.: PCT/FR2018/052119
Publication Date: 07.03.2019 International Filing Date: 29.08.2018
IPC:
B29C 70/32 (2006.01) ,B29C 70/54 (2006.01) ,B29B 11/16 (2006.01) ,B29L 31/00 (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
30
Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
32
on a rotating mould, former or core
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
54
Component parts, details or accessories; Auxiliary operations
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
11
Making preforms
14
characterised by structure or composition
16
comprising fillers or reinforcements
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
L
INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C59
31
Other particular articles
Applicants:
SAFRAN AIRCRAFT ENGINES [FR/FR]; 2 Boulevard du Général Martial Valin 75015 PARIS, FR
Inventors:
SIX, Pauline Nathalie; FR
ASHTARI, Nicolas Cambyse; FR
FABRE, Hubert Jean Marie; FR
HELLOT, Jérémy; FR
Agent:
DESORMIERE, Pierre-Louis; FR
DAVID, Alain; FR
LAIK, Eric; FR
HEALY, Erwan; FR
Priority Data:
175798430.08.2017FR
Title (EN) METHOD FOR FORMING AND METHOD FOR IMPREGNATING A FIBROUS PREFORM
(FR) PROCEDE DE MISE EN FORME ET PROCEDE D'IMPREGNATION D'UNE PREFORME FIBREUSE
Abstract:
(EN) A method for forming a fibrous preform comprises: • - inserting fastening tabs (111) of a fibrous texture (100) into a corresponding opening (610) of an impregnation mandrel (600), each tab having a thickness smaller than the thickness of the rest of the fibrous texture , • - using a removable holding device (80-1) to fasten each tab (111) inserted into each opening (610) against a surface (602, 603) of the impregnation mandrel (600), • - winding the fibrous texture (100) under tension onto the impregnation mandrel (600) in order to obtain a fibrous preform. (Figure 6)
(FR) Un procédé de mise en forme d'une préforme fibreuse comprend : • - l'insertion de languettes de fixation (111) d'une texture fibreuse (100) dans une lumière (610) correspondante d'un mandrin d'imprégnation (600), chaque languette présentant une épaisseur inférieure à l'épaisseur du reste de la texture fibreuse, • - la fixation par un dispositif de maintien amovible (80-1) de chaque languette (111) insérée dans chaque lumière (610) contre une surface (602, 603) du mandrin d'imprégnation (600), • - l'enroulement sous tension de la texture fibreuse (100) sur le mandrin d'imprégnation (600) afin d'obtenir une préforme fibreuse. (Figure 6)
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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)