Process and apparatus for the production of high strength polymer
composite structures
    1.
    发明授权
    Process and apparatus for the production of high strength polymer composite structures 失效
    用于生产高强度聚合物复合结构的方法和设备

    公开(公告)号:US5939013A

    公开(公告)日:1999-08-17

    申请号:US918946

    申请日:1997-08-25

    摘要: An apparatus for use in the production of fiber reinforced polymer composite structures includes a mold having a mold surface and a fiber construction on the mold surface including at least one layer of resin absorbing fibrous lay up material. A stiffener on the fiber construction is constructed of a resin absorbing material. A flexible, resin impervious vacuum bag lays over the mold surface and is marginally sealed to the mold surface to define an enclosure for the fiber construction and stiffener. The vacuum bag has a resin inlet to permit introduction of a resin into the enclosure. A vacuum is drawn upon the enclosure to draw the vacuum bag against the fiber construction and stiffener. The stiffener spaces the vacuum bag from the fiber construction when the vacuum bag is drawn against the fiber construction and stiffener to facilitate the distribution of resin uniformly throughout the fiber construction. The stiffener is integrated with the fiber construction upon curing of the resin.

    摘要翻译: 一种用于生产纤维增强聚合物复合结构的装置包括:模具表面和模具表面上的纤维结构的模具,包括至少一层吸收纤维铺层材料的树脂。 纤维结构上的加强筋由树脂吸收材料构成。 柔性树脂防渗真空袋放置在模具表面上,并与模具表面边缘密封,以确定纤维结构和加强件的外壳。 真空袋具有树脂入口以允许将树脂引入外壳。 在外壳上抽真空以将真空袋拉到纤维结构和加强件上。 当将真空袋拉到纤维结构和加强件上时,加强件将真空袋从纤维结构中分离,以促进树脂在整个纤维结构中均匀分布。 加固件在树脂固化后与纤维结构集成。

    System and method for modeling plastic molding and molding parts
incorporating the same
    2.
    发明授权
    System and method for modeling plastic molding and molding parts incorporating the same 失效
    用于塑造塑料成型的模具和成型零件的系统和方法

    公开(公告)号:US5581468A

    公开(公告)日:1996-12-03

    申请号:US371199

    申请日:1995-01-11

    摘要: A system and method for simulating LCM mold filling utilizes at least one processor, suitable RAM and storage memory, input means, display means, and logic for simulating the injection of resin into a mold cavity containing a preform based upon mold cavity design parameters, mold filling processing parameters, physical property parameters, and system processing parameters, and identifying the current state of selected mold filling conditions at selected points in time during the simulated mold filling process. The system includes logic for identifying incipient dry spots, and also preferably includes means for interrupting the operation of the program at selected points to vary selected parameters to eliminate incipient dry spots and otherwise maximize the mold filling process. The system may additionally include logic for determining whether the output from a mold filling simulation satisfies a set of predefined criteria to determine whether a particular mold design and/or filling process is acceptable for use in production and, if so, record the approved mold filling process parameters for transfer and input to an RTM mold control. Alternatively, the system may be incorporated into a conventional mold control for direct input of developed mold filling process parameters into the control for use in operating the mold to produce liquid composite plastic parts.

    摘要翻译: 用于模拟LCM模具填充的系统和方法使用至少一个处理器,合适的RAM和存储存储器,输入装置,显示装置和逻辑,用于模拟根据模具腔设计参数模拟将树脂注入到具有预制件的模腔中,模具 填充加工参数,物理参数和系统处理参数,以及在模拟填充过程中在选定的时间点识别所选择的模具填充条件的当前状态。 该系统包括用于识别初始干点的逻辑,并且还优选地包括用于在选定点处中断程序的操作以改变所选参数以消除初始干点并且否则最大化模具填充过程的装置。 该系统可以另外包括用于确定来自模具填充模拟的输出是否满足一组预定义标准以确定特定模具设计和/或填充过程是否可接受用于生产的逻辑,并且如果是,则记录批准的模具填充 用于传输和输入到RTM模具控制的过程参数。 或者,该系统可以结合到常规模具控制器中,用于将开发的模具填充工艺参数直接输入到用于操作模具以产生液体复合塑料部件的控制中。