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    VERFAHREN ZUR HERSTELLUNG VON EIN- ODER MEHRSCHICHTIGEN FASERVORFORMLINGEN IM TFP-VERFAHREN
    1.
    发明授权
    VERFAHREN ZUR HERSTELLUNG VON EIN- ODER MEHRSCHICHTIGEN FASERVORFORMLINGEN IM TFP-VERFAHREN 有权
    工艺用于生产一种或多层纤维，预制件TFP工艺

    公开(公告)号：EP1915244B1

    公开(公告)日：2009-09-02

    申请号：EP06792550.3

    申请日：2006-07-24

    申请人： Airbus Deutschland GmbH

    发明人： JÖRN, Paul ,  EBERTH, Ulrich

    IPC分类号： B29C33/30 ,  B29B11/16 ,  B29C70/38 ,  B29L31/30

    CPC分类号： B29B11/16 ,  B29C70/086 ,  B29C70/226 ,  B29C70/382 ,  B29C70/48 ,  B29L2031/3082 ,  Y10T156/1028 ,  Y10T156/11

    摘要： The invention relates to a method for producing one- or multilayer fibre preforms (1, 17) in a TFP method by means of a fibre strands (2-8,18) which are substantially force flux-oriented, wherein said fibre preforms (1, 17) have an almost any material thickness devoid of the unwanted support layer and an almost any surface geometry. The inventive method comprises stages consisting in placing and fixing the fibre strands (2-8,18) to a flexible and elastic substrate (9, 19), in particular an elastomer substrate (9, 19) by means of a fixing thread (10,11) guided by a sewing head in such a way that the fibre preform (1, 17) is formed and in removing the fibre preform (1, 17) placed on the elastic and flexible substrate (9, 19) therefrom. The fibre preforms (1, 17) produced by the inventive method exhibit a nearly optimal fibre orientation, i.e. substantially determined by the force flux, are devoid of any significant irregularity in the fibre assembly, thereby making it possible to produce composites withstanding extreme mechanical stresses in spite of the low weight thereof, for example by a subsequent processing in the RTM method.

    FÜHRUNGSMITTEL FÜR EINE VORRICHTUNG ZUR HERSTELLUNG VON FASERVORFORMLINGEN IM TFP-VERFAHREN FÜR VERBUNDBAUTEILE
    2.
    发明公开
    FÜHRUNGSMITTEL FÜR EINE VORRICHTUNG ZUR HERSTELLUNG VON FASERVORFORMLINGEN IM TFP-VERFAHREN FÜR VERBUNDBAUTEILE 有权
    参考资料中的设备，用于TFP工艺光纤预制棒 - 复合部件生产

    公开(公告)号：EP1907194A1

    公开(公告)日：2008-04-09

    申请号：EP06792553.7

    申请日：2006-07-24

    申请人： Airbus Deutschland GmbH

    发明人： JÖRN, Paul ,  EBERTH, Ulrich

    IPC分类号： B29C70/38 ,  B29B11/16

    CPC分类号： B29B11/16 ,  B29C70/382 ,  B29C70/52 ,  Y10T156/17

    摘要： The invention relates to a guiding system (1) of a device for producing fibre preforms in a TFP method for composite components consisting in placing and fixing a fibre strand (3) to a support layer in an almost any trajectory curve, wherein the inventive guiding system (1) is mainly used for guiding said fibre strand (3). According to said invention, the guiding system (1) comprises a through opening (2) provided with a variable cross-section geometry for passing said fibre strand (3) and is applicable in the area of the device sewing head used for carrying out the TFP method. As a result of the variable cross-section geometry of the through opening (2), the width of the placeable and fixable fibre strand (3) can be enlarged, for example in the trajectory curve sections having small radius of curvature in such a way that unwanted local thickened areas in the trajectory curve sections are avoided. A control and adjustment system is preferably also used for controlling the device sewing head trajectory which is used for the TFP method and for controlling the variation of the cross-section geometry of the guiding system (1). The inventive guiding system (1) makes it possible to refit in a simple manner aforesaid devices for producing the fibre preforms for composite components in the TFP method.

    VERFAHREN ZUR HERSTELLUNG VON EIN- ODER MEHRSCHICHTIGEN FASERVORFORMLINGEN
    4.
    发明授权
    VERFAHREN ZUR HERSTELLUNG VON EIN- ODER MEHRSCHICHTIGEN FASERVORFORMLINGEN 有权
    工艺用于生产一种或多层光纤预制棒

    公开(公告)号：EP1915250B1

    公开(公告)日：2009-03-04

    申请号：EP06777928.0

    申请日：2006-07-24

    申请人： Airbus Deutschland GmbH

    发明人： JÖRN, Paul ,  EBERTH, Ulrich

    IPC分类号： B29C70/54

    CPC分类号： B29B11/16 ,  B29C70/226 ,  B29C70/543

    摘要： The invention relates to a method for producing one- or multilayer fibre preforms (1, 8) in a TFP method by means of a fibre strands (2, 9) which are substantially force flux-oriented, placed on at least one support layer (3) and are fixed with the aid of at least one fixing thread (6). The inventive method consists in introducing at least one fibre preform (1,8) into a fixing device, when the TFP method is over, for locking the fibre strands (2, 9) in the position thereof and in removing almost in a parallel manner the fixing threads (6) and/or the support layer(s). The preferably entire removal of the fixing threads (6) and/or the support layer(s) from the fibre preform (1, 8) confers thereto practically perfect nearly isotropic mechanical properties. In the preferred embodiment, the fixing threads (6) and/or the support layer(s) are made of a water-soluble plastic material in such a way that said fixing threads (6) and/or the support layer(s) are entirely disolved and removed by rinsing with the aid of water used in the form of a solvent.

    VERFAHREN ZUR HERSTELLUNG VON EIN- ODER MEHRSCHICHTIGEN FASERVORFORMLINGEN SOWIE FIXIERFADEN UND TRAGSCHICHT
    5.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON EIN- ODER MEHRSCHICHTIGEN FASERVORFORMLINGEN SOWIE FIXIERFADEN UND TRAGSCHICHT 有权
    工艺用于生产一种或多层光纤预制棒

    公开(公告)号：EP1915250A1

    公开(公告)日：2008-04-30

    申请号：EP06777928.0

    申请日：2006-07-24

    申请人： Airbus Deutschland GmbH

    发明人： JÖRN, Paul ,  EBERTH, Ulrich

    IPC分类号： B29C70/54

    CPC分类号： B29B11/16 ,  B29C70/226 ,  B29C70/543

    摘要： The invention relates to a method for producing one- or multilayer fibre preforms (1, 8) in a TFP method by means of a fibre strands (2, 9) which are substantially force flux-oriented, placed on at least one support layer (3) and are fixed with the aid of at least one fixing thread (6). The inventive method consists in introducing at least one fibre preform (1,8) into a fixing device, when the TFP method is over, for locking the fibre strands (2, 9) in the position thereof and in removing almost in a parallel manner the fixing threads (6) and/or the support layer(s). The preferably entire removal of the fixing threads (6) and/or the support layer(s) from the fibre preform (1, 8) confers thereto practically perfect nearly isotropic mechanical properties. In the preferred embodiment, the fixing threads (6) and/or the support layer(s) are made of a water-soluble plastic material in such a way that said fixing threads (6) and/or the support layer(s) are entirely disolved and removed by rinsing with the aid of water used in the form of a solvent.

    FIXIERFADEN ZUM HEFTEN VON VERSTÄRKUNGSFASERN
    9.
    发明公开
    FIXIERFADEN ZUM HEFTEN VON VERSTÄRKUNGSFASERN 有权
    固定线程装订增强纤维

    公开(公告)号：EP1915243A1

    公开(公告)日：2008-04-30

    申请号：EP06777932.2

    申请日：2006-07-24

    申请人： Airbus Deutschland GmbH

    发明人： JÖRN, Paul ,  EBERTH, Ulrich

    IPC分类号： B29B11/16 ,  B29B15/10 ,  B29K101/10 ,  B29K307/04 ,  B29K301/12

    CPC分类号： B29B11/16 ,  B29C70/20 ,  D02G3/402 ,  Y10T428/2929 ,  Y10T428/2933 ,  Y10T428/2936

    摘要： The invention relates to a fixing thread (1, 5, 10, 16) for stitching reinforcing fibres, in particular, for forming a fibre preform in order to produce a composite fibre-reinforced component by impregnating with a hardenable plastic material. The inventive fixing thread (1, 5, 10, 16) comprises an interface (4, 9, 15, 19) for locally increasing the ductility of a matrix made of said hardenable plastic material and at least one base thread (2, 6, 11, 12,17) in particular for reducing the formation of almost obligatory microcracks in the matrix of a finished composite component in the puncture areas of the fixing thread (1, 5,10,16). Said interface can be, for example formed by applying a coating covering the base thread (1) with the aid of a thermoplastic material, such as polyethylene, polypropylene or the like.