Densification of Fibrous Structures by Resin Transfer Moulding for Making Thick Parts of Composite Material

A fiber structure for forming the reinforcement of a part to be made is placed in a mold ( 22 ) having at least one wall formed by a flexible membrane, and then a resin composition is injected into the mold, the composition having a volatile material content of less than 25% by weight and being at a...

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Hauptverfasser:	DAUCHIER MARTINE, BOUTEFEU BRIGITTE, CAUCHOIS JEAN-PIERRE, PAGES MARIE-LAURE
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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creator	DAUCHIER MARTINE BOUTEFEU BRIGITTE CAUCHOIS JEAN-PIERRE PAGES MARIE-LAURE
description	A fiber structure for forming the reinforcement of a part to be made is placed in a mold ( 22 ) having at least one wall formed by a flexible membrane, and then a resin composition is injected into the mold, the composition having a volatile material content of less than 25% by weight and being at a temperature of a value such that its viscosity lies in the range 0.1 Pa.s to 0.3 Pa.s. The resin is polymerized in the mold placed in an enclosure ( 20 ) with temperature being raised progressively and with polymerization including at least a final stage of polymerization under pressure in order to obtain a composite material part presenting residual porosity of less than 11% by volume.
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subjects	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
title	Densification of Fibrous Structures by Resin Transfer Moulding for Making Thick Parts of Composite Material
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