NOVEL THERMOPROTECTIONS OBTAINED BY A FILAMENT WINDING PROCESS AND USE THEREOF
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    发明申请
    NOVEL THERMOPROTECTIONS OBTAINED BY A FILAMENT WINDING PROCESS AND USE THEREOF 审中-公开
    纤维缠绕工艺获得的新型热保护及其使用

    公开(公告)号:US20150210833A1

    公开(公告)日:2015-07-30

    申请号:US14115829

    申请日:2012-05-04

    IPC分类号: C08K7/10 C08K3/34 B29C70/30

    摘要: A novel composite material is obtained by winding a reinforcing yarn, made of refractory fibers, onto a form, and a mandrel, the wound yarn being impregnated, as it is wound, with a “slip” composed of a liquid resin mixed with fillers composed of particles of refractory material. The reinforcing yarn is composed of linear fibers and of fibers forming protruding loops which confer a three-dimensional texture on the wound reinforcement. The yarn preform composed of the reinforcing yarn impregnated with “slip” is crosslinked according to a defined heating cycle comprising several temperature gradients of different durations. The crosslinked yarn preform is subsequently machined so as to bring the composite material component thus produced to the desired shape. The composite material component thus shaped can optionally be reinforced by overwinding on its external face with a reinforcing yarn preimpregnated with a resin chemically compatible with the resin constituting the material.

    摘要翻译: 通过将由耐火纤维制成的增强纱线缠绕在模具上,并且心轴上缠绕着被卷绕的卷绕的纱线,以与由填充物组成的填料混合的液体树脂形成的“滑动”来获得新颖的复合材料 的耐火材料颗粒。 增强纱由线性纤维和形成突出环的纤维构成,其在伤口加强件上赋予三维纹理。 由浸渍有“滑动”的增强纱线组成的纱线预制件根据包括不同持续时间的几个温度梯度的限定加热循环进行交联。 随后加工交联的纱线预成型件,以使得如此制备的复合材料部件达到期望的形状。 如此形成的复合材料部件可以可选地通过在其外表面上通过用与构成材料的树脂化学相容的树脂预浸渍的增强纱线进行过卷绕来增强。