A method of manufacturing a wind turbine blade root prefab (10) comprises firstly providing a mold cavity. Fiber layers are placed in the mold cavity. A layer of bonding material (28, 30), in the form of a flexible film of partially cured polymer, is laid on top of the fiber layers. A fastening element insert (24) for fastening the blade to a hub is fixed in the mold cavity, with a surface of the fastening element adjacent to the fiber layer, with the layer of bonding material (28, 30) between the fiber layer and the surface of the fastening element insert (24). Another layer of bonding material flexible film (28, 30) is laid in the mold on top of the fastening element (24). More layers of fiber are placed on top, and the mold cavity is closed. Liquid resin is admitted into the mold cavity to infuse the fiber layers. The resin and bonding material are then cured, to bond the fiber layers to the fastening element insert via the layer of bonding material.


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    Title :

    METHOD OF MANUFACTURING A WIND TURBINE BLADE ROOT PREFAB, AND A WIND TURBINE BLADE ROOT PREFAB


    Additional title:

    VERFAHREN ZUR HERSTELLUNG EINES WINDTURBINENSCHAUFELFUSSFERTIGTEILS SOWIE WINDTURBINENSCHAUFELFUSSFERTIGTEIL
    PROCÉDÉ DE FABRICATION DUN PRÉFABRIQUÉ DE PIED DE PALE DÉOLIENNE ET PRÉFABRIQUÉ DE PIED DE PALE DÉOLIENNE.



    Publication date :

    2019-02-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F01D Strömungsmaschinen [Kraft- und Arbeitsmaschinen oder Kraftmaschinen], z.B. Dampfturbinen , NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand / B29L INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES , Index-Schema für besondere Gegenstände in Verbindung mit Unterklasse B29C / B64C AEROPLANES , Flugzeuge / F03D Windkraftmaschinen , WIND MOTORS



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