公开(公告)号：US20250065579A1

公开(公告)日：2025-02-27

申请号：US18553142

申请日：2022-09-09

Applicant: NINGBO INSTITUTE OF MATERIALS TECHNOLOGY AND ENGINEERING, CHINESE ACADEMY OF SCIENCES

Inventor： Yunfu OU ,  Longqiang WU ,  Anran FU ,  Hongchen ZHAO ,  Yiting WENG ,  Dongsheng MAO

IPC: B29C71/00 ,  B29C70/30 ,  B29C70/48 ,  B29C70/54

Abstract: A method for preparing a fiber composite material toughened by nano-particles, comprising: first dispersing agglomerated nano-particles uniformly in a low-viscosity, volatile dispersant by ultrasonic and micro-jet treatment (two-stage dispersion), and spraying the dispersant containing nano-particles uniformly on the fiber fabric through a high-pressure spray gun; after the liquid is removed from the fiber fabric, subjecting the nano-modified fiber fabric and resin to composite molding. The method provided by the present application is simple to operate, can be scaled up, and does not change the original manufacturing process of the fiber composite material. Moreover, the method provided by the present application requires only a very small amount of toughening components to achieve a significant increase in the interlaminar fracture toughness of the composite, which has great application prospects.

公开(公告)号：US20250018664A1

公开(公告)日：2025-01-16

申请号：US18712776

申请日：2022-11-23

Applicant: Fundació EURECAT ,  UNIVERSITAT DE GIRONA

Inventor： María ARIÑO PALACÍN ,  Josep COSTA BALANZAT ,  Cristian BUILES CÁRDENAS ,  Manuel Ángel BERMÚDEZ AYERBE ,  María Eugenia RODRÍGUEZ SIERRA

IPC: B29C70/48 ,  B29C70/06 ,  B29K307/04

Abstract: The present invention discloses a vacuum infusion system for infusing a fibre reinforcement with a resin comprising: a mould having a mould cavity comprising at least one moulding element for the reception of a fibre reinforcement, the system further comprising at least one counter mould comprising one or more flexible parts, each flexible part including at least one curved region for forming at least one curved region on the fibre reinforcement infused with resin; and a pressure applying configuration contributing to apply a pressure at least on the at least one curved region of the one or more flexible parts of the counter mould, to transmit a pressure to the at least one curved region of the fibre reinforcement infused with resin, said pressure applying configuration being configured for increasing the fibre volume ratio and/or reducing the void content of the composite moulded component.

公开(公告)号：US20250010558A1

公开(公告)日：2025-01-09

申请号：US18800743

申请日：2024-08-12

Applicant: COMPOSITE INTEGRATION LIMITED

Inventor： Richard BLAND ,  William HARRIS ,  Simon VINCENT ,  Oliver POWLESLAND

IPC: B29C70/48 ,  B29C33/38 ,  B29C43/36 ,  B29C70/06 ,  B29C70/34 ,  B29C70/44 ,  B29C70/54

Abstract: Apparatuses, devices, systems and methods for resin transfer moulding of composite articles are disclosed. A mould enclosure enclosing a fibre pack is provided and one or more resin ports are provided along a resin flow path within the fibre pack. Resin ingress into the fibre pack is controlled via valves or a flow control mechanism, each being operable to impose a flow rate on resin passing into the fibre pack.

公开(公告)号：US12179443B2

公开(公告)日：2024-12-31

申请号：US17536052

申请日：2021-11-28

Applicant: Airbus Operations GmbH

Inventor： Hauke Seegel

IPC: B29C70/48 ,  B29C33/38 ,  B29C33/40 ,  B29C70/44

Abstract: A method for producing a component from a fiber-reinforced plastic, wherein at least one ply of a semifinished fiber product having a peripheral contour is applied to the molding tool at a first temperature, wherein the contour lies within the peripheral edge. A compensating body, having a coefficient of thermal expansion which is greater than a coefficient of thermal expansion of the molding tool, is arranged along the peripheral edge, such that the compensating body extends from the edge in the direction of the peripheral contour. After sealing the arrangement, resin is introduced, and the arrangement is heated. As a result, the compensating body expands to a greater extent than the molding tool and encloses the semifinished fiber product in a flush manner, with the result that a shape of the component can correspond to an intended final shape and no longer has to be finish-machined.

公开(公告)号：US20240424752A1

公开(公告)日：2024-12-26

申请号：US18695986

申请日：2022-09-16

Applicant: LM Wind Power A/S

Inventor： Kristian Lehmann MADSEN ,  Frederik BRANDT

IPC: B29C70/56 ,  B29C70/24 ,  B29C70/48 ,  B29C70/54 ,  B29C70/68 ,  B29K309/08 ,  B29L31/08

Abstract: The present invention relates to a moulding assembly (100) for manufacturing a shell part of a wind turbine blade, and to methods of manufacturing a shell part of a wind turbine blade using the moulding assembly. The moulding assembly (100) comprises a blade mould (96) with a moulding cavity (97), a gripping device (76) for releasably engaging a preform (98) for the shell part, and a lifting device (102). A tensionable member (112) is attached to the blade mould (96), and a tensioning unit coupled to the tensionable member is used for creating and maintaining tension on the tensionable member while arranging an engaged preform within the moulding cavity.

公开(公告)号：US20240399616A1

公开(公告)日：2024-12-05

申请号：US18796799

申请日：2024-08-07

Applicant: Woodio Oy

Inventor： Petro Lahtinen ,  Tuomo Nikkinen ,  Timo Humalainen

IPC: B27N3/02 ,  B27N3/00 ,  B27N3/08 ,  B27N3/20 ,  B29C70/48 ,  B29K101/10 ,  B29K311/14

Abstract: A method of producing a moulded article comprising a thermoset polymer and particles of porous natural materials, such as wood materials, and uses thereof. The composite material has a continuous matrix of a hardened thermoset polymer and, distributed within the matrix, and the particles are at least partially encased by the thermoset polymer. The method comprises the steps of providing a mould with two opposite pressing surfaces, said pressing surfaces defining a space between them; feeding particles of porous natural materials into the space between the pressing surfaces; advancing the surfaces towards each other to compress the particles in said space; feeding unhardened thermoset resin in liquid form into the mould so as to fill at least said space between pressing surfaces while keeping the particles compressed between the pressing surfaces; and curing the thermoset resin in the mould to provide a moulded composite article.

公开(公告)号：US12157280B2

公开(公告)日：2024-12-03

申请号：US16613362

申请日：2018-05-15

Applicant: McLaren Automotive Limited

Inventor： Claudio Santoni

IPC: B29C70/46 ,  B29C70/48 ,  B29K63/00 ,  B29K105/08 ,  B29K307/04

Abstract: A method for forming a composite component, the method comprising: providing a mould (15) comprising a first part (8) of the mould and a second part (13) of the mould, the first part (8) and second part (13) when assembled define an exterior surface of the composite component; loading the first part (8) of the mould with reinforcing material (20); injecting matrix precursor into the first part (8) of the mould to impregnate reinforcing material (20) located in the first part (8) of the mould with matrix precursor; closing the second part (13) of the mould and the first part (8) of the mould around the reinforcing material (20) and matrix precursor to assemble the first part (8) and second part (13) to define an exterior surface of the composite component; and injecting matrix precursor into the closed mould to impregnate reinforcing material (20) located between the first and second parts (8, 13) of the mould with matrix precursor.

公开(公告)号：US20240367394A1

公开(公告)日：2024-11-07

申请号：US18562964

申请日：2022-05-25

Applicant: GKN Aerospace Services Limited

Inventor： Stephen Williams ,  Clement Ooi

IPC: B29C70/56 ,  B29C70/44 ,  B29C70/48 ,  B29C70/54 ,  B29K105/08 ,  B29K307/04 ,  B29L31/30

Abstract: A component can be formed from a non-crimp fibre material, by using a forming tool over which a layer of non-crimp fibre is to be drawn, wherein the layer of non-crimp material is drawn over the tool by forming boards extending around all or part of the periphery of the tool using an elastic material.

公开(公告)号：US12122069B2

公开(公告)日：2024-10-22

申请号：US16317270

申请日：2017-07-13

Applicant: Safran Aircraft Engines

Inventor： Hubert Jean Marie Fabre ,  Nicolas Cambyse Ashtari ,  Raoul Jaussaud ,  Marc-Emmanuel Jean François Techer

IPC: B29C70/48 ,  B29C33/00 ,  B29C70/54

CPC classification number: B29C33/0038 ,  B29C70/48 ,  B29C70/545 ,  B29C70/546

Abstract: A method for impregnating a fibrous preform by injection or infusion, the method including the steps of providing a mold having at least two portions, said mold presenting an inlet orifice and a vent orifice placed on opposite sides of the mold; placing a fibrous preform in a portion of the mold; placing a seal in a passage formed between an inside wall of the mold and the fibrous preform, said passage extending substantially along the direction extending between the opposite sides of the mold; closing the mold so that the two portions of the mold co-operate with the seal in such a manner as to shut off said passage; and impregnating the fibrous preform with an impregnation material.

公开(公告)号：US12085054B2

公开(公告)日：2024-09-10

申请号：US18055454

申请日：2022-11-15

Applicant: Vestas Wind Systems A/S

Inventor： Jonathan Smith ,  James Smith ,  Robert Ernst ,  Mark Folsom

IPC: F03D1/06 ,  B29C70/48 ,  B29K105/08 ,  B29K105/20 ,  B29L31/00 ,  B29L31/08

CPC classification number: F03D1/0658 ,  B29C70/48 ,  F03D1/0675 ,  B29K2105/0872 ,  B29K2105/20 ,  B29L2031/085 ,  B29L2031/7504 ,  F05B2230/21

Abstract: An insert (105) for a wind turbine blade root. The insert (105) has a bushing (40) and an outer surface with circumferential annular grooves (68). A transition layer (102) is built up around the bushing (40). The transition layer (102) has fibrous material sheet layers and filamentary material windings (80) in the grooves which alternate with fibrous plies (98) covering the grooves (68). Each fibrous ply (98) is anchored into the grooves (68) by the windings (80). Fibrous battens (148) are fitted around the transition layer (102) to form an insert body (108). Each batten (148) has a deltoid cross-section so that the battens give the insert a quadrilateral or trapezoidal cross-section.