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    FORMABLE HONEYCOMB PANEL
    131.
    发明申请
    FORMABLE HONEYCOMB PANEL 审中-公开
    可燃蜂蜜面板

    公开(公告)号：WO1988006970A1

    公开(公告)日：1988-09-22

    申请号：PCT/US1988000803

    申请日：1988-03-14

    Applicant: HEXCEL CORPORATION

    Inventor： HEXCEL CORPORATION ,  HULL, H., Robert

    IPC: B32B03/12

    CPC classification number: B32B3/12 ,  B32B5/02 ,  B32B5/18 ,  B32B37/146 ,  B32B2305/024 ,  Y10T428/1234 ,  Y10T428/24149 ,  Y10T428/24273 ,  Y10T428/24298

    Abstract: A formable honeycomb panel (10) is disclosed that comprises a core layer (12) and two skin panels (14, 16) of sheet material bonded to opposite sides of the core layer (12). At least one of the skin panels is porous and has an effective stiffness that is substantially less than the stiffness of a solid sheet of material of the same thickness. The stiffness of the pourous skin panel (16) is sufficiently low so that bending of the honeycom panel (10) is accommodated primarily by deformation of the porous skin panel (16) before the core layer (12) collapses or the adhesive bonds between the core layer (12) and the skin panels (14, 16) fail.

    Peel ply for elongate composite matertals
    133.
    发明授权
    Peel ply for elongate composite matertals 有权

    公开(公告)号：US11697254B2

    公开(公告)日：2023-07-11

    申请号：US17602095

    申请日：2020-04-02

    Applicant: Hexcel Composites Limited ,  Hexcel Holding GMBH ,  Hexcel Corporation

    Inventor： Johannes Moser ,  Yu-Chen Hung ,  Erin Reagan

    IPC: B29C70/52 ,  B29C70/54 ,  B29C70/68

    CPC classification number: B29C70/525 ,  B29C70/54 ,  B29C70/682

    Abstract: An assembly (113) for composite manufacture is provided. The assembly comprises a cured resin impregnated reinforcement material (112) comprising a fibre component and a resin matrix component, in which the resin matrix component comprises polyurethane, the assembly having a length to width ratio of at least 5:1, and the assembly defining a longitudinal direction (L) along its length; and a peel ply (116) in contact with the cured resin impregnated reinforcement material (112), the peel ply (116) comprising a woven layer having a plurality of longitudinal fibres (118) extending in the longitudinal direction (L); and a plurality of transverse fibres (120) extending in a transverse direction (T) normal to the longitudinal direction (L); in which the areal density of the plurality of transverse fibres (120) is higher than the areal density of the plurality of longitudinal fibres (118).

    Finish composition
    134.
    发明授权
    Finish composition 有权

    公开(公告)号：US11466400B2

    公开(公告)日：2022-10-11

    申请号：US16407365

    申请日：2019-05-09

    Applicant: Hexcel Corporation

    Inventor： Michael E. Yurchenko

    IPC: C08L83/08 ,  D06M15/643 ,  D01F9/22 ,  D06M13/17 ,  D06M13/188 ,  D06M13/192 ,  D06M13/203 ,  D06M13/207 ,  D06M13/342 ,  D06M13/355 ,  D06M13/402 ,  D06M101/28

    Abstract: Provided is a composition for the treatment of fibers, such as PAN precursor fibers. The finish composition includes a polysiloxane; an emulsifier; water; and a dicarboxylic acid having a pKa from 1 to 4, and boiling point from 200 to 400° C. The dicarboxylic acid may have the following formula: where R1 is absent or a saturated or unsaturated, linear or branched, aromatic substituted or unsubstituted, hydrocarbon group; Y1 and Y2 are independently hydrogen, nitrogen, oxygen, sulfur, phosphorus, C1-C6 alkyl group, or an alkoxy group; and X1 and X2 are independently one or more hydrogen atoms, a metal, a quaternary amine, or a hydrocarbon group having up to 6 carbon atoms, the hydrocarbon group being an alkyl group, an alkylene group, or an aromatic group, which may be branched or linear, and may optionally have one or more heteroatoms selected from the group consisting of nitrogen, oxygen, sulfur and phosphorus.

    Unwinding of materials
    135.
    发明授权
    Unwinding of materials 有权

    公开(公告)号：US11358828B2

    公开(公告)日：2022-06-14

    申请号：US16756074

    申请日：2018-10-18

    Applicant: HEXCEL COMPOSITES LIMITED ,  HEXCEL CORPORATION

    Inventor： John Ellis ,  Anthony Loccisano

    IPC: B65H49/20

    Abstract: There is provide a process for unwinding material from a spool (2) wherein the angle (Θ) of take off at the first contact point (4) for the unwind is always in the range 0±20°, and wherein the first contact point (4) for the unwind is no more than 600 mm from the axis (3) of rotation of the spool (2). There is also provided an apparatus for the unwinding of material from a spool (2) comprising an axis (3) upon which a spool (2) may be rotatably mounted and a static first contact point (4) for the unwound material positioned no more than 600 mm from the centre of the axis (3), wherein the angle (Θ) of take off at the first contact point (4) for the unwind is always in the range 0±20°.

    High temperature composite honeycomb
    137.
    发明授权
    High temperature composite honeycomb 有权

    公开(公告)号：US10947354B2

    公开(公告)日：2021-03-16

    申请号：US16518528

    申请日：2019-07-22

    Applicant: Hexcel Corporation

    Inventor： Robert Charles Loesch ,  Merid Minasse Haile ,  Earl Frederick Ayle ,  Clark Russell Smith

    IPC: C08J5/24 ,  C08J5/04 ,  B32B27/38

    Abstract: Composite honeycomb that may be contoured to form composite honeycomb structures, which have tight radii of curvatures and/or compound curvatures, and which are suitable for use in high temperature environments. The method for making the composite honeycomb involves using high temperature prepreg to make a flexible composite honeycomb that is formed into a composite honeycomb precursor. A high temperature coating resin is applied to the composite honeycomb precursor to form the high temperature composite honeycomb.

    Polymer Powder Composition For Additive Manufacturing
    138.
    发明申请
    Polymer Powder Composition For Additive Manufacturing 审中-公开

    公开(公告)号：US20200369898A1

    公开(公告)日：2020-11-26

    申请号：US16422283

    申请日：2019-05-24

    Applicant: Hexcel Corporation

    Inventor： Whitney Kline ,  Alden Winn ,  Lawrence Varholak

    IPC: C09D11/102 ,  C09D11/037 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/153

    Abstract: A powder composition suitable for use in selective laser sintering for printing an object. The powder composition includes a first fraction having a polyetherketoneketone (PEKK) powder having a plurality of particles. The powder composition includes a second fraction having a plurality of siloxane particles that is dry blended with the PEKK powder prior to selective laser sintering of the powder. In some embodiments, the powder composition includes a third fraction of carbon fiber. The powder composition when used in selective laser sintering results in parts with more consistent results and improves process economics.

    Metal AM process with in situ inspection
    140.
    发明授权
    Metal AM process with in situ inspection 有权

    公开(公告)号：US10675684B2

    公开(公告)日：2020-06-09

    申请号：US15496702

    申请日：2017-04-25

    Applicant: Hexcel Corporation

    Inventor： Scott DeFelice ,  Anthony DeCarmine

    IPC: B22F3/105 ,  G01N21/88 ,  G01N29/04 ,  G01N27/90 ,  B23K15/00 ,  B23K20/12 ,  B23K31/12 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y50/02 ,  B23P23/04 ,  B23P15/00

    Abstract: A system for inspecting a part while said part is produced by additive manufacturing, includes an additive manufacturing apparatus having a build tray, the apparatus being configured to fabricate the part layer-by-layer on the tray; an automated tool holder carrying a tool configured to deposit, add or weld layer-upon-layer of material; the tool holder and tray are configured to move relative to one another along a defined path; and an inspection device attached to the tool holder and configured to scan a layer of material in situ. The tool holder alternately arranges the tool and inspection device in a working position so that the tool holder fixes the tool in the working position for depositing, adding, or welding the layer of material and thereafter the tool holder switches said tool with the inspection device into the working position for scanning and detecting defects in the layer of material.

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