A method for molding fiber-reinforced plastic. A core is formed in a desired shape by accommodating, in a flexible bag, a grain group containing plurality of grains. The core is placed inside a prepreg containing resin and fibers, and the prepreg, in which the core is housed is placed in a molding die and compression molded. When doing so, the grain group contains first and second grains (a,b) that satisfy the equation (1). (1) 1.1≤(Da/Db)≤2.0 In the equation Da is the grain diameter of the grains (a), and Db is the grain diameter of the grain (b). When using a molding die to mold a molded article having a cavity, the above mentioned molding method enables an increase in the internal pressure of the core in order to change the peripheral surface area of the core, without using a pressurized gas and/or pressurized liquid.


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    Title :

    Method for molding fiber-reinforced plastic, and molding device for same


    Contributors:

    Publication date :

    2018-07-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B29K Index-Schema für Formmassen oder Materialien für Verstärkungen, Füllstoffe oder vorgeformte Teile, z.B. Einlagen in Verbindung mit den Unterklassen B29B, B29C oder B29D , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS / B29L INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES , Index-Schema für besondere Gegenstände in Verbindung mit Unterklasse B29C / B60B VEHICLE WHEELS , Räder für Fahrzeuge



    Method for molding fiber-reinforced plastic, and molding device for same

    TAKANO TSUNEO / KAZEHAYA YUUJI / NISHIMURA MITSUSHI | European Patent Office | 2019

    Free access

    METHOD FOR MOLDING FIBER-REINFORCED PLASTIC, AND MOLDING DEVICE FOR SAME

    TAKANO TSUNEO / KAZEHAYA YUUJI / NISHIMURA MITSUSHI | European Patent Office | 2018

    Free access

    METHOD FOR MOLDING FIBER-REINFORCED PLASTIC, AND MOLDING DEVICE FOR SAME

    TAKANO TSUNEO / KAZEHAYA YUUJI / NISHIMURA MITSUSHI | European Patent Office | 2019

    Free access

    MOLDING METHOD FOR FIBER-REINFORCED PLASTIC STRUCTURE

    TAKANO TSUNEO / KAZEHAYA YUUJI / NISHIMURA MITSUSHI | European Patent Office | 2018

    Free access