Process for manufacturing a thermostructural composite part
    41.
    发明授权
    Process for manufacturing a thermostructural composite part 有权
    热结构复合材料制造工艺

    公开(公告)号:US08999439B2

    公开(公告)日:2015-04-07

    申请号:US12446654

    申请日:2007-10-25

    摘要: The invention relates to a method of fabricating a composite material part comprising fiber reinforcement densified by a matrix, the method comprising the steps of: making a fiber preform consolidated by impregnating (S4) a fiber texture made up of yarns with a liquid consolidation composition containing a precursor for a consolidating material, and by transforming (S7) the precursor into consolidating material by pyrolysis so as to obtain a consolidated preform that is held in shape; and densifying (S8) the consolidated fiber preform by chemical vapor infiltration; the method being characterized in that it includes, prior to impregnation (S4) of the fiber texture with the consolidation liquid composition, a step of filling (S2) the pores of the yarns of said fiber texture by means of a filler composition.

    摘要翻译: 本发明涉及一种制造复合材料部件的方法,所述复合材料部件包括由基体致密化的纤维增强材料,该方法包括以下步骤:通过浸渍(S4)由纱线组成的纤维织物,通过含有 用于固结材料的前体,以及通过热解将(S7)前体转化成固结材料,以获得保持形状的固结预成型体; 并通过化学气相渗透致密化(S8)固结纤维预制件; 该方法的特征在于,在用固结液组合物浸渍(S4)纤维织构之前,其包括用填料组合物填充(S2)所述纤维织构的纱线的孔的步骤。

    METHOD OF FABRICATING A COMPOSITE MATERIAL TURBINE ENGINE VANE WITH INCORPORATED PLATFORMS
    42.
    发明申请
    METHOD OF FABRICATING A COMPOSITE MATERIAL TURBINE ENGINE VANE WITH INCORPORATED PLATFORMS 有权
    复合材料涡轮发动机风扇与并入平台的制作方法

    公开(公告)号:US20150040396A1

    公开(公告)日:2015-02-12

    申请号:US14361942

    申请日:2012-11-26

    申请人: HERAKLES SNECMA

    IPC分类号: B23P15/04

    摘要: Multilayer weaving is used to form a fiber blank having a longitudinal direction corresponding to the longitudinal direction of the vane to be made and comprising across its thickness a first woven portion with a plurality of layers of yarns interlinked by weaving, and also a second and third woven portions. The first portion is situated between the second and third portions and interlinked thereto by weaving over only a fraction of its longitudinal dimension. A preform for the vane is formed by folding out, on either side of the first portion, segments of the second and third portions not interlinked with the first portion, by shaping the first portion to form a preform portion for the airfoil of the vane, and by shaping the folded-out segments of the second and third portions to form preform portions for the inner and outer platforms of the vane to be fabricated.

    摘要翻译: 多层织造用于形成具有对应于要制造的叶片的纵向方向的纵向方向的纤维坯料,并且包括横跨其厚度的第一编织部分,其具有通过编织相互连接的多层纱线,并且还包括第二和第三 编织部分。 第一部分位于第二部分和第三部分之间并通过仅在其纵向尺寸的一部分上编织而与之相互连接。 用于叶片的预制件通过在第一部分的任一侧上折叠而不与第一部分互连的第二和第三部分的段,通过使第一部分成形以形成用于叶片的翼型的预成型件部分, 并且通过成形第二和第三部分的折叠部分以形成用于待制造的叶片的内平台和外平台的预制件部分。

    ASSEMBLY PROVIDING A CONNECTION THAT IS SELF TIGHTENING WITH TEMPERATURE
    44.
    发明申请
    ASSEMBLY PROVIDING A CONNECTION THAT IS SELF TIGHTENING WITH TEMPERATURE 有权
    组装提供了一个自动紧固温度的连接

    公开(公告)号:US20140356094A1

    公开(公告)日:2014-12-04

    申请号:US14288498

    申请日:2014-05-28

    申请人: Herakles

    IPC分类号: F16B39/02

    摘要: An assembly comprising first and second parts made of composite material held one against the other by at least one fastener system comprising a bolt having a flat head from which there extends a threaded portion, and a nut having a flat head from which there extends a shank including tapping suitable for co-operating with the threaded portion of the bolt. The head of the bolt bears against a countersink formed in the first part. The head of the nut bears against a countersink formed in the second part. The fastener system is suitable, during axial expansion of the fastener system, for causing each head to tilt towards the countersink in which it is housed.

    摘要翻译: 一种组件,包括由复合材料制成的第一部分和第二部分,所述第一部分和第二部分由至少一个紧固件系统相互抵靠,所述紧固件系统包括具有扁平头部的螺栓,所述螺钉从所述螺钉部分延伸出来,以及螺母具有平坦的头部, 包括适于与螺栓的螺纹部分配合的攻丝。 螺栓的头部抵靠在第一部分中形成的埋头孔。 螺母的头部靠在第二部分形成的埋头孔。 紧固件系统在紧固件系统的轴向膨胀期间是适合的,用于使每个头朝向其被容纳的埋头孔倾斜。

    Method for producing a turbomachine blade made from a composite material
    49.
    发明授权
    Method for producing a turbomachine blade made from a composite material 有权
    由复合材料制成的涡轮机叶片的方法

    公开(公告)号:US08607454B2

    公开(公告)日:2013-12-17

    申请号:US13263176

    申请日:2010-03-26

    IPC分类号: B21K25/00 B23P15/04

    摘要: A method of fabricating a composite-material turbomachine blade having platform incorporated therein includes separately making a blade platform element that includes rigidified fiber reinforcement and that has a shape close to that of a platform of the blade to be fabricated, with at least one opening being formed through the platform element. The opening has the shape of the profile of the airfoil of the blade to be fabricated. Three-dimensional weaving is used to make a flexible fiber blank as a single piece that includes blade airfoil-and-root preform portions. The platform element is engaged, via its opening, on the flexible fiber blank while deforming it so as to assemble the platform element with the fiber blank. The fiber blank is shaped together with the platform element assembled thereon to obtain a blade preform of a shape that is close to the shape of the blade to be fabricated. After shaping, the blade preform is consolidated in its shape in a shaper. Additionally, final densification of the consolidated blade preform is performed in order to obtain a composite-material blade having an incorporated platform.

    摘要翻译: 制造具有并入其中的平台的复合材料涡轮机叶片的方法包括分别制造包括刚性纤维增强件并且具有接近待制造的叶片的平台的形状的叶片平台元件,其中至少一个开口 通过平台元件形成。 开口具有要制造的叶片的翼型的形状。 使用三维编织将柔性纤维坯料制成包括叶片翼型和根部预制件部分的单件。 平台元件通过其开口接合在柔性纤维坯料上,同时变形,以便将平台元件与纤维坯料组装。 纤维坯料与组装在其上的平台元件一起成形,以获得接近待制造的刀片形状的形状的刀片预制件。 在成形之后,刀片预成型件以整形器固结成其形状。 此外,为了获得具有并入的平台的复合材料刀片,进行固结刀片预成型件的最终致密化。

    Pyrotechnical method for dual-mode gas generation and related pyrotechnical generator
    50.
    发明授权
    Pyrotechnical method for dual-mode gas generation and related pyrotechnical generator 失效
    用于双模式气体发生和相关烟火发生器的烟火技术方法

    公开(公告)号:US08453575B2

    公开(公告)日:2013-06-04

    申请号:US12444632

    申请日:2007-10-08

    IPC分类号: C06D5/00

    摘要: The subject of the present invention is a pyrotechnic method for generating gas at two successive flow rates—a first flow rate then a second flow rate, said first flow rate being higher than said second flow rate—which comprises: the combustion of a first pyrotechnic charge (10) in a first combustion chamber (1) discharging into a second combustion chamber (2) via at least one nozzle (3); and the combustion of a second pyrotechnic charge (20) in said second combustion chamber (2) discharging to the outside via at least one vent (21). Characteristically, said first chamber (1) operates at high pressure and said second chamber (2) operates at low pressure. Another subject of the invention is a pyrotechnic gas generator suitable for the implementation of said method.The invention is most particularly applicable in the context of side protection airbags (“curtain airbags”), used in automobile safety.

    摘要翻译: 本发明的主题是用于以两个连续流速产生气体的烟火方法 - 第一流量然后第二流量,所述第一流量高于所述第二流量,其包括:第一烟火的燃烧 在经由至少一个喷嘴(3)排入第二燃烧室(2)的第一燃烧室(1)中的装料(10); 并且所述第二燃烧室(2)中的第二烟火装置(20)的燃烧通过至少一个通风口(21)排放到外部。 特征地,所述第一腔室(1)在高压下操作,并且所述第二腔室(2)在低压下操作。 本发明的另一主题是适用于实施所述方法的烟火气体发生器。 本发明特别适用于用于汽车安全的侧保护气囊(“帘式安全气囊”)。