SHAPE MEMORY POLYMER (SMP) FLOW MEDIA FOR RESIN INFUSION
    55.
    发明申请
    SHAPE MEMORY POLYMER (SMP) FLOW MEDIA FOR RESIN INFUSION 审中-公开
    形状记忆聚合物(SMP)流媒体用于树脂输注

    公开(公告)号:US20160158977A1

    公开(公告)日:2016-06-09

    申请号:US14562909

    申请日:2014-12-08

    发明人: William Tod Ross

    IPC分类号: B29C43/56 B29C59/02 B29C43/36

    摘要: A system and method of vacuum assisted resin transfer molding (VARTM) using a reconfigurable material, such as shape memory polymer (SMP), for a caul sheet or a forming tool. The reconfigurable material may have a rough or non-smooth, deformed configuration to serve as a flow media during resin transfer, but may be triggered to return to a smooth memory shape at composite cure temperatures at least high enough to place the reconfigurable material into a malleable state. Thus, a surface of the composite material facing the reconfigurable material will have a substantially smooth finish following curing thereof. The rough or non-smooth deformed configuration may be created by embossing or otherwise forming various patterns into the reconfigurable material in the malleable state, and holding this pattern while triggering the reconfigurable material back to a rigid state for use during resin transfer.

    摘要翻译: 使用诸如形状记忆聚合物(SMP)的可重构材料的真空辅助树脂传递模塑(VARTM)的系统和方法,用于胶片或成形工具。 可重构材料可以具有粗糙或非平滑的变形构型,以在树脂转移期间用作流动介质,但是可以被触发以在复合固化温度下恢复到平滑的记忆形状,至少足够高以将可重新配置的材料置于 韧性状态 因此,面对可重构材料的复合材料的表面在其固化之后将具有基本平滑的整理。 粗糙或不平滑的变形构型可以通过在可延展状态下将各种图案压花或以其它方式形成到可重构材料中,并且保持该图案,同时将可重构材料触发回刚性状态以在树脂转移期间使用来产生。

    METHOD FOR MOLDING FIBER-REINFORCED PLASTIC, AND MOLDING DEVICE FOR SAME
    57.
    发明申请
    METHOD FOR MOLDING FIBER-REINFORCED PLASTIC, AND MOLDING DEVICE FOR SAME 有权
    用于模制纤维增强塑料的方法和用于其的模制装置

    公开(公告)号:US20150183139A1

    公开(公告)日:2015-07-02

    申请号:US14407203

    申请日:2013-06-11

    IPC分类号: B29C43/18 B29C70/02

    摘要: A method for molding fiber-reinforced plastic. A core is formed in a desired shape by accommodating, in a flexible bag, a grain group containing plurality of grains. The core is placed inside a prepreg containing resin and fibers, and the prepreg, in which the core is housed is placed in a molding die and compression molded. When doing so, the grain group contains first and second grains (a,b) that satisfy the equation (1). (1) 1.1≦(Da/Db)≦2.0 In the equation Da is the grain diameter of the grains (a), and Db is the grain diameter of the grain (b). When using a molding die to mold a molded article having a cavity, the above mentioned molding method enables an increase in the internal pressure of the core in order to change the peripheral surface area of the core, without using a pressurized gas and/or pressurized liquid.

    摘要翻译: 一种纤维增强塑料成型方法。 通过在柔性袋中容纳含有多个颗粒的颗粒组,将芯体形成为期望的形状。 将芯放置在包含树脂和纤维的预浸料中,将容纳芯的预浸料放置在成型模具中并压塑。 当这样做时,晶粒组包含满足等式(1)的第一和第二晶粒(a,b)。 (1)1.1≦̸(Da / Db)≦̸ 2.0在等式中,Da是晶粒(a)的晶粒直径,Db是晶粒(b)的晶粒直径。 当使用成型模具来模制具有空腔的模制品时,上述模制方法能够增加芯的内部压力,以便在不使用加压气体和/或加压的情况下改变芯的周边表面积 液体。

    PROCESS AND APPARATUS FOR PRODUCING COMPOSITE STRUCTURES
    60.
    发明申请
    PROCESS AND APPARATUS FOR PRODUCING COMPOSITE STRUCTURES 有权
    生产复合结构的方法和装置

    公开(公告)号:US20110297325A1

    公开(公告)日:2011-12-08

    申请号:US13210483

    申请日:2011-08-16

    IPC分类号: B29C70/00 B32B38/00

    摘要: A process and apparatus for producing perforated composite structures, such as acoustic skins suitable for aircraft engine nacelle and duct components. The process includes placing a mat member, a non-impregnated fabric member, and a resin film on a tool surface so that pins disposed on the mat member project through the fabric member and resin film to define holes therein. The fabric member is between the mat member and resin film, and the fabric member and resin film define a stack that conforms to the mat member and tool surface. A caul member is then placed on the stack so that apertures in the caul member are penetrated by the pins. The stack is heated to melt the resin film and cause molten resin to infuse the fabric member and yield a resin-infused fabric stack, after which the molten resin within the resin-infused fabric stack is at least partially cured.

    摘要翻译: 用于生产穿孔复合结构的方法和设备,例如适用于飞机发动机机舱和管道部件的声学皮肤。 该方法包括将垫子,非浸渍的织物构件和树脂膜放置在工具表面上,使得设置在垫构件上的销突出穿过织物构件和树脂膜以在其中限定孔。 织物构件在垫材和树脂膜之间,织物和树脂膜限定了与垫材和工具表面一致的叠层。 然后将一个止动件放置在堆叠上,使得止动件中的孔被销钉穿透。 将该叠层加热熔化树脂膜,使熔融树脂注入织物,并产生树脂输入的织物叠层,此后树脂注入的织物叠层内的熔融树脂至少部分固化。