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    PULTRUSION METHOD AND EQUIPMENT FOR PREPARING A FIBER-REINFORCED COMPOSITE
    2.
    发明申请
    PULTRUSION METHOD AND EQUIPMENT FOR PREPARING A FIBER-REINFORCED COMPOSITE 审中-公开

    公开(公告)号：WO2018228972A1

    公开(公告)日：2018-12-20

    申请号：PCT/EP2018/065296

    申请日：2018-06-11

    Applicant: COVESTRO DEUTSCHLAND AG

    Inventor： GU, Yongming ,  LI, Zhijiang ,  CHEN, James ,  ZHANG, Chenxi ,  SUN, Guobin ,  ZHANG, Hui

    IPC: B29C70/52

    Abstract: The present invention relates to a pultrusion method and equipment for preparing a fiber-reinforced composite. The pultrusion method comprises the following steps: i) preforming inner layer fibers (1); ii) impregnating the preformed inner layer fibers (1) with a first resin to obtain a first preform; iii) heating and curing the first preform to obtain an inner layer profile (5); iv) preforming outer layer fibers (6) together with the inner layer profile (5); v) impregnating the outer layer fibers (6) with a second resin to obtain a second preform; and vi) heating and curing the second preform to obtain the fiber-reinforced composite. By arranging a curing step between the two impregnating steps, the method of the present invention can realize stepwise curing of the fiber-reinforced composite. With this method, a thicker fiber-reinforced composite and a fiber-reinforced composite which requires impregnation with two resins can be efficiently obtained, thereby intermingling of inner and outer layer resins and infiltration of the inner layer resin into the outer layer can be avoided.

    METHOD FOR MANUFACTURING FIBER-REINFORCED PLASTIC PRODUCTS
    7.
    发明申请
    METHOD FOR MANUFACTURING FIBER-REINFORCED PLASTIC PRODUCTS 审中-公开
    制造纤维增强塑料制品的方法

    公开(公告)号：WO2016162348A8

    公开(公告)日：2016-10-13

    申请号：PCT/EP2016/057465

    申请日：2016-04-06

    Applicant: COVESTRO DEUTSCHLAND AG ,  COVESTRO POLYMERS (CHINA) CO. LTD.

    Inventor： GU, Yongming ,  CHENG, Yuan ,  ZHENG, Yichen ,  SUN, Guobin ,  XIAO, Shuangyin

    IPC: B29C70/54 ,  B29C70/44

    Abstract: The present invention relates to a method for manufacturing fiber-reinforced plastic products. This method comprises the following steps of: preparing a fiber preform (2) on a mold (1); disposing first (4a) and second (4b) flow meshes and first (3a) and second (3b) demolding cloths; sealing the fiber preform to form a vacuum system by pumping; penetrating the resin through the first peel ply via the first flow mesh and impregnates the fiber preform from bottom to top; penetrating the resin through the second peel ply via the second flow mesh and impregnates the fiber preform from top to bottom; and attaining a resin-impregnated fiber perform and finally attaining fiber-reinforced plastic products. The invention is characterized in that: a first film (5a) is disposed on a resin-injection side of the fiber perform to cover the first injection port (8a), the first demolding cloth, the first flow mesh and at least a part of the fiber perform, after the resin is supplied to the first flow mesh, the resin is supplied to the second flow mesh when the resin over said fiber perform flows beyond the area covered by the first film.

    Abstract translation: 本发明涉及一种用于制造纤维增强塑料产品的方法。 该方法包括以下步骤：在模具（1）上制备纤维预制件（2）; 设置第一（4a）和第二（4b）流动网以及第一（3a）和第二（3b）脱模布; 通过泵送密封光纤预制件以形成真空系统; 通过第一流动网将树脂穿过第一剥离层并从下至上浸渍纤维预制件; 通过所述第二流动网穿过所述第二剥离层，并从上至下浸渍所述纤维预制件; 并获得树脂浸渍纤维制品并最终获得纤维增强塑料制品。 本发明的特征在于：在纤维的树脂注入侧设置第一膜（5a）以覆盖第一注入口（8a），第一脱模布，第一流动网和至少一部分 在将树脂供应到第一流动网格之后，当所述纤维上的树脂流过第一薄膜覆盖的区域时，将树脂供应到第二流动网格。

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