METHOD OF MANUFACTURING REINFORCED LIGHTWEIGHT COMPOSITES

    公开(公告)号:WO2023002205A1

    公开(公告)日:2023-01-26

    申请号:PCT/GB2022/051911

    申请日:2022-07-21

    摘要: There is disclosed a method of manufacturing edge-reinforced lightweight composite components (10), the method comprising: disposing at least one layer (or mat) of fibres on a first mould surface (31); disposing a filler (13) on said layer or layers (16) of fibres, the filler (13) being adapted to provide localized reinforcement at the edge of the composite component (10); forming a loop (18) around the filler (13) with at least one of the layer or layers (16) of fibres; disposing a second mould surface (32) relative to the first mould surface (31), such that a mould cavity is formed between said first and second mould surfaces; and transferring a mixture (41) through a mould (30) into the mould cavity (33), the mixture (41) comprising a resin and a curing agent, thereby allowing said mixture (41) to impregnate the layer or layers of fibres, before the resin cures. Reinforced lightweight composite components (10) having high stiffness at the edge can thus be advantageously manufactured, using a standard Resin Transfer Moulding technigue, while preventing sharp and/or unsightly edges.

    QUICK ADJUST ROOT PLATE ATTACHMENT FOR WIND TURBINE BLADE MOLDS

    公开(公告)号:WO2022271911A2

    公开(公告)日:2022-12-29

    申请号:PCT/US2022/034666

    申请日:2022-06-23

    摘要: The present disclosure provides for a root plate assembly system, an axially adjustable, rigid connection between a metallic (e.g. steel) root plate and a composite root flange of a wind turbine blade mold. The system includes a root plate including a flange portion with at least one aperture disposed therein. The system includes a sealing collar disposed within the aperture in the root plate. The system includes at least one washer having a larger diameter than the aperture in the root plate. The system includes a threaded collar having a longitudinally extending channel and threads on an outer surfaces thereof. The system includes a fastener disposed at least partially within the longitudinally extending channel of the threaded collar. The system includes a locknut disposed above the fastener abutting the fastener and a bolt cover disposed over the locknut, the bolt cover abutting the collar

    WINGLET AND WINGLET COVER ASSEMBLY
    6.
    发明申请

    公开(公告)号:WO2022023045A1

    公开(公告)日:2022-02-03

    申请号:PCT/EP2021/069646

    申请日:2021-07-14

    摘要: A winglet (10) is disclosed, with first and second covers (20, 22), a front spar (24), a rear spar (26), and a mid spar (28) between the front spar (24) and the rear spar (26). Each spar is joined to the first cover (20) and to the second cover (22). The mid spar (28) has an I- shaped cross-section comprising a mid spar web (29), a first pair of mid spar caps (29a, 30a) joining the mid spar (28) to the first cover (20), and a second pair of mid spar caps (29b, 30b) joining the mid spar (28) to the second cover (22). The mid spar (28) has a length and the mid spar (28) curves along all or part of its length. A winglet cover assembly (100) is also disclosed, with a cover (20) and a spar (28) formed from fibre-reinforced composite material. The spar (28) has an l-shaped cross-section comprising a spar web (29), a first pair of spar caps (29a, 30a) joining the spar web (29) to the cover (20), and a second pair of spar caps (29b, 30b); and the cover (20) is bonded to the first pair of spar caps (29a, 30a).

    VORRICHTUNG UND VERFAHREN ZUR HERSTELLUNG EINES FORMKÖRPERS AUS EINEM FASERWERKSTOFF

    公开(公告)号:WO2021250273A1

    公开(公告)日:2021-12-16

    申请号:PCT/EP2021/065918

    申请日:2021-06-14

    申请人: KARL, Alexander

    发明人: KARL, Alexander

    摘要: Die Erfindung betrifft ein Verfahren (30) zur Herstellung eines Formkörpers (52) aus einem Faserwerkstoff (50), wobei zunächst unter Verwendung einer Textiltechnik aus dem Faserwerkstoff (50) ein mit einem Bindermaterial versehenes textiles Gebilde (54) hergestellt wird (Schritt 32). Dieses textile Gebilde (54) wird anschließend umgeformt (Schritt 34) und durch eine Aktivierung des Bindermaterials in einer vorgegebenen dreidimensionalen Gestalt fixiert (Schritt 36). Die Aktivierung des Bindermaterials (Schritt 36) erfolgt dabei iterativ. Das bedeutet, dass das Bindermaterial schrittweise in einigen ausgewählten Bereichen des textilen Gebildes (54) aktiviert (und die Form des Gebildes dadurch in diesen Bereichen fixiert) wird, bevor eine Aktivierung/Fixierung in anderen Bereichen des textilen Gebildes (54) erfolgt.

    エポキシ樹脂組成物、繊維強化複合材料およびその製造方法

    公开(公告)号:WO2021241734A1

    公开(公告)日:2021-12-02

    申请号:PCT/JP2021/020408

    申请日:2021-05-28

    摘要: 非常に低粘度で含浸性に優れ、注入温度でも粘度上昇が抑えられ安定であり、短時間で十分な硬化ができ、かつ成形後の脱型工程の際、樹脂が十分硬化し高耐熱性が付与されることで、スムーズに脱型できるエポキシ樹脂組成物を提供すること。さらには、湿熱時の圧縮強度やマイクロクラック耐性に優れた繊維強化複合材料を提供することを課題とする。 少なくともエポキシ樹脂として次の構成成分[A]~[C]を含み、少なくとも硬化剤として次の構成成分[D]および構成成分[E]を含むエポキシ樹脂組成物であって、構成成分[A]が全エポキシ樹脂成分100質量部に対して30質量部以上50質量部以下含まれ、かつ構成成分[B]が全エポキシ樹脂成分100質量部に対して20質量部以上40質量部以下含まれ、かつ構成成分[D]が、全硬化剤成分100質量部に対して55質量部以上75質量部以下含まれ、かつエポキシ樹脂に含まれるエポキシ基総数(E)と硬化剤中に含まれるアミン化合物の活性水素総数(H)との比であるH/Eが1.1以上1.4以下であるエポキシ樹脂組成物。 [A]4官能グリシジルジアミン型エポキシ樹脂 [B]アミノフェノール型エポキシ樹脂 [C]ビスフェノールF型エポキシ樹脂 [D]結晶性芳香族ジアミン [E]液状芳香族ジアミン

    METHOD OF MANUFACTORING A SPAR CAP FOR A WIND TURBINE BLADE PART

    公开(公告)号:WO2021239207A1

    公开(公告)日:2021-12-02

    申请号:PCT/EP2020/064412

    申请日:2020-05-25

    摘要: A method of manufacturing a spar cap (44, 46) for a wind turbine blade part, comprise the steps of: • - providing a plurality of precured elongated fibre reinforced resin elements (50) • - stacking the plurality of fibre reinforced elements (50), an interlayer (57) of an elongated non-cured fibre material being arranged between successive fibre reinforced elements (50), thereby forming a stack (58) of precured fibre reinforced elements • - moving the stack (58) of fibre reinforced elements to a spar cap mould (66) comprising a mould bottom and mould side walls, • - arranging the stack of fibre reinforced elements in the cavity of the spar cap mould (66) • - infusing resin into the stack of fibre reinforced elements in the mould • - allow the resin to cure and demould the stack (80).

    繊維強化複合材成形方法および繊維強化複合材成形装置

    公开(公告)号:WO2021191967A1

    公开(公告)日:2021-09-30

    申请号:PCT/JP2020/012718

    申请日:2020-03-23

    摘要: 伸縮性を有する長尺状の発泡体と発泡体を密閉するカバー部材とを有するコア部を中空部分に収容した繊維基材を成形型(20)に配置する配置工程(S101)と、繊維基材を成形型に封止して密閉空間を形成する密閉工程(S102)と、密閉工程により形成された密閉空間の空気を吸引して密閉空間を減圧するとともに密閉空間に封止された繊維基材に対して熱硬化性樹脂材料を注入する注入工程(S103)と、注入工程により繊維基材に対して注入された熱硬化性樹脂材料を加熱して硬化させる硬化工程(S104)と、硬化工程により硬化した熱硬化性樹脂材料と繊維基材とを含む繊維強化複合材を成形型から取り外す取り外し工程(S105)と、カバー部材により密閉される内部空間(IS)を減圧して発泡体を収縮させ、繊維強化複合材の中空部分に収容されたコア部を除去する除去工程(S106)と、を備える繊維強化複合材成形方法を提供する。