SYSTEMS AND METHODS FOR MONITORING A COMPOSITE CURE CYCLE
    21.
    发明申请
    SYSTEMS AND METHODS FOR MONITORING A COMPOSITE CURE CYCLE 审中-公开
    用于监测复合固化循环的系统和方法

    公开(公告)号:US20080315462A1

    公开(公告)日:2008-12-25

    申请号:US11767667

    申请日:2007-06-25

    IPC分类号: G01B17/02

    CPC分类号: G01B17/02

    摘要: A system for monitoring at least one of a resin infusion process and a composite cure cycle of a composite article is provided. The system includes an ultrasonic transmitter configured to deliver an acoustic wave to a resin-infused fiber preform and an ultrasonic receiver configured to receive the acoustic wave propagated through the resin-infused fiber preform. The system also includes a processor configured to estimate at least one parameter using the received acoustic wave and to use the at least one parameter to determine an extent to which at least one resin has infused into the resin-infused fiber preform.

    摘要翻译: 提供一种用于监测复合制品的树脂浸渍工艺和复合固化循环中的至少一个的系统。 该系统包括被配置为将声波传送到树脂注入的纤维预制件的超声波发射器和被配置为接收通过树脂输入的光纤预制棒传播的声波的超声波接收器。 该系统还包括配置成使用接收到的声波来估计至少一个参数并且使用至少一个参数来确定至少一个树脂注入到树脂注入的纤维预制件中的程度的处理器。

    Use of high modulus, impact resistant foams for structural components
    22.
    发明授权
    Use of high modulus, impact resistant foams for structural components 有权
    使用高模量,耐冲击的泡沫用于结构部件

    公开(公告)号:US06884507B2

    公开(公告)日:2005-04-26

    申请号:US10366257

    申请日:2003-02-13

    摘要: The present invention provides tough, high modulus, low density thermoset polyurethane compositions which are useful in general as, for example, cast structural materials and in a preferred embodiment can be cured directly onto an aircraft engine fan blade, thereby providing a lighter blade, without concomitant loss in structural integrity or blade performance due to, for example, resistance to foreign object impacts and fuel efficiency. In a preferred embodiment, the composition is comprised of bis-amine compounds reacted with isocyanate-functional polyether polymers in the presence of hollow polymeric microspheres. The thermoset polymer compositions are formed by casting into a mold which is formed by a cavity within the metallic or composite fan blade or guide vane in the form of a pocket and a removable caul sheet. After the elastomeric polyurethane foam is injected through at least one injector port into the mold, the foam is cured.

    摘要翻译: 本发明提供了韧性,高模量,低密度的热固性聚氨酯组合物,其通常可用于例如铸造结构材料,并且在优选实施方案中可直接固化到飞机发动机风扇叶片上,从而提供较轻的叶片,而不需要 结构完整性或叶片性能的伴随损失,例如由于抵抗异物影响和燃油效率。 在优选的实施方案中,组合物由在中空聚合物微球存在下与异氰酸酯官能的聚醚聚合物反应的双 - 胺化合物组成。 热固性聚合物组合物通过浇铸到由金属或复合风扇叶片或导向叶片内的空腔形成的模具形成,其形式为口袋和可移除的盖板。 在通过至少一个注射器端口将弹性体聚氨酯泡沫注入到模具中之后,泡沫体被固化。