RTM METHOD

An RTM method in which a preform formed from a reinforcing fiber substrate is placed in a cavity of a molding die, and resin is injected from a plurality of injection ports into the cavity and impregnated into the preform, includes disposing the plurality of injection ports in first positions in a c...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TSUJI SEIJI, WATANABE KAZUYA, YAMAMOTO KOHNOSUKE
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS 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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Beschreibung
Zusammenfassung:	An RTM method in which a preform formed from a reinforcing fiber substrate is placed in a cavity of a molding die, and resin is injected from a plurality of injection ports into the cavity and impregnated into the preform, includes disposing the plurality of injection ports in first positions in a central section of the cavity corresponding to positions of the preform located in a product area of an article to be finally molded and second positions located in a periphery of the cavity corresponding to positions of the preform outside the product area of the article to be finally molded or corresponding to positions inside the cavity but outside an area of the preform, and causing the timing of closing the injection ports after resin injection to be different from each other between injection ports disposed in the first positions and injection ports disposed in the second positions.