Metal-plastic composite part and method of making same, and electronic device housing having same

    公开(公告)号:US12289849B2

    公开(公告)日:2025-04-29

    申请号:US17941183

    申请日:2022-09-09

    Abstract: A method for making a composite piece comprised of a metal part and a glass-fiber-reinforced plastic part, comprising: providing a metal part with a receiving cavity and a flow guiding channel, the flow guiding channel having an inlet communicating with the receiving cavity and an outlet; introducing molten plastic reinforced with glass fibers into the receiving cavity to fill the receiving cavity and the flow guiding channel and overflows from the outlet to form a flash section; curing the molten plastic to obtain a plastic part; removing unwanted portion of the metal part together with a portion of the plastic part to obtain the composite piece, wherein the glass-fiber-reinforced plastic part includes an exposed surface and glass fibers exposed at the exposed surface are substantially parallel to each other. A metal-plastic composite part prepared by the method and an electronic device housing are also disclosed.

    FENCE POST
    4.
    发明申请

    公开(公告)号:US20250116133A1

    公开(公告)日:2025-04-10

    申请号:US18481195

    申请日:2023-10-04

    Abstract: The invention relates to a fence post 100 for electrical fences. The fence post 100 may be formed as a pultrusion and may have the shape of a “T”. Compared to prior art fence posts, the fence post 100 can reduce problems of excessive electrical conduction and can also reduce problems of splintering. The fence post 100 may have a tapered region 140. The fence post 100 may have a hole-free region. A portion of the fence post 100 may have a colour that contrasts with the remainder of the fence post 100; this can enhance visibility of the fence post 100 in snow.

    Surface finishing moulding material comprising a rheology-modified epoxy layer

    公开(公告)号:US12240954B2

    公开(公告)日:2025-03-04

    申请号:US17770567

    申请日:2020-09-23

    Inventor: Mark Whiter

    Abstract: A moulding material which comprises: (a) a structural reinforcement layer comprising a fibrous reinforcement material optionally in combination with a second resin composition; and (b) a surface enhancing layer, for contacting a surface of a mould or tool, comprising a first non-woven fibre carrier in combination with a first resin composition containing a rheology modifier and a curing agent, wherein the first resin composition provides an external mould or tool-contacting surface of the moulding material. The moulding material can be cured to form a moulded article having a high quality surface finish that requires minimal preparation before painting and/or application in its intended use. The moulded article may be provided with sacrificial discontinuous indicator means to assist in uniform removal of a part of the surface enhancing layer of the moulded article for specific applications.

    Method of manufacturing wind turbine blade

    公开(公告)号:US12240190B2

    公开(公告)日:2025-03-04

    申请号:US17720327

    申请日:2022-04-14

    Abstract: A method of manufacturing a wind turbine blade capable of being easily manufactured and improving structural strength. The method of manufacturing the wind turbine blade includes performing spar cap formation in which a first-type spar cap having a structure in which support plates including reinforcing fibers are stacked and a second-type spar cap including reinforcing fiber sheets are formed, performing shell formation in which a pressure side shell and a suction side shell are formed by injecting a resin in a state in which the first-type spar cap, the second-type spar cap, and a core panel are disposed between an inner skin and an outer skin, and performing shell assembly in which the pressure side shell is joined to the suction side shell.

    BI-POLYMER THERMOPLASTIC
    9.
    发明申请

    公开(公告)号:US20250059368A1

    公开(公告)日:2025-02-20

    申请号:US18739095

    申请日:2024-06-10

    Abstract: A method for forming a thermoplastic prepreg is disclosed. The method includes supplying continuous fibers to a first extrusion device, supplying a first thermoplastic feedstock to the first extrusion device, wherein the feedstock comprises a first thermoplastic polymer, pre-heating, tensioning, and spreading the continuous fibers, extruding the continuous fibers and the first feedstock within an impregnation die to form a first extrudate in which the continuous fibers are embedded with a matrix of the first thermoplastic polymer, twisting the first extrudate, supplying a second thermoplastic polymer to a second extrusion device, extruding the first extrudate and the second thermoplastic feedstock within an impregnation die to form a second extrudate in which the second feedstock forms a layer around the first extrudate, while the first extrudate is twisted and under tension, and forming a sleeve of the second extrudate having the second feedstock forming a layer around the first extrudate.

    REDUCED POROSITY 3D PRINTED COMPOSITES

    公开(公告)号:US20250018651A1

    公开(公告)日:2025-01-16

    申请号:US18771173

    申请日:2024-07-12

    Abstract: A method of additively manufacturing reduced porosity composites is provided. The method includes the step of providing an additive manufacturing printer including a feed hopper. The feed hopper includes a first valve disposed proximate a feed inlet in a closed position and a second valve disposed proximate a chamber opening in an open position. The feed hopper defines a first chamber and a second chamber in selective fluid communication via the chamber opening. The method includes applying a rough vacuum to the first and second chamber and feeding feedstock into the feed hopper. The first valve is opened and the second valve is closed. The first valve is closed and the second valve is opened. The feedstock is allowed to exit the feed hopper and is heated to give a heated printing material, which is extruded. An associated feed hopper is also provided.

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