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    Slurry preform system
    1.
    发明授权
    Slurry preform system 失效

    公开(公告)号：US5972169A

    公开(公告)日：1999-10-26

    申请号：US7356

    申请日：1998-01-15

    申请人： Joseph A. Bodary ,  Bruce N. Greve ,  Terry G. Wells

    发明人： Joseph A. Bodary ,  Bruce N. Greve ,  Terry G. Wells

    IPC分类号： B29C70/30 ,  D21J7/00 ,  D21F13/00 ,  D21J1/00 ,  D21J3/00

    CPC分类号： B29C70/30 ,  D21J7/00

    摘要： An efficient, low cost method and apparatus for controlling fiber deposition in a fiber reinforced preform is provided. In the method, a main screen is placed in a tank filled with liquid. The main screen has a major surface, upright side walls and a plurality of openings formed therein. Reinforcing fibers are added to the liquid to create a slurry. The main screen is raised through the slurry to a level beneath the top of the slurry, thereby causing the reinforcing fibers to be deposited on the main screen. A retainer screen is inserted into the slurry so that the reinforcing fibers are sandwiched between the main screen and the retainer screen. Both the main screen and retainer screen are raised out of the tank effectively forming a preform with minimal deformation. An alternative embodiment includes a bubbler zone control device for mixing the slurry. The tank is divided into separate areas or zones whereby the supply of fluid to each bubbler zone is controlled. The bubbler zone controller may be used to initiate or diminish a vortex in the slurry as the screen is being raised out of the tank. Another embodiment includes a fiber dispenser controller for sequentially adding different fibers to the slurry.

    Slurry preform system
    3.
    发明授权
    Slurry preform system 失效
    浆料预制件系统

    公开(公告)号：US6086720A

    公开(公告)日：2000-07-11

    申请号：US233737

    申请日：1999-01-20

    申请人： Joseph A. Bodary ,  Bruce N. Greve ,  Terry G. Wells

    发明人： Joseph A. Bodary ,  Bruce N. Greve ,  Terry G. Wells

    IPC分类号： B29C70/30 ,  D21J7/00 ,  D21F13/00 ,  D21J3/00 ,  D21G1/04

    CPC分类号： B29C70/30 ,  D21J7/00

    摘要： An efficient, low cost method and apparatus for controlling fiber deposition in a fiber reinforced preform is provided. In the method, a main screen is placed in a tank filled with liquid. The main screen has a major surface, upright side walls and a plurality of openings formed therein. Reinforcing fibers are added to the liquid to create a slurry. The main screen is raised through the slurry to a level beneath the top of the slurry, thereby causing the reinforcing fibers to be deposited on the main screen. A retainer screen is inserted into the slurry so that the reinforcing fibers are sandwiched between the main screen and the retainer screen. Both the main screen and retainer screen are raised out of the tank effectively forming a preform with minimal deformation. An alternative embodiment includes a bubbler zone control device for mixing the slurry. The tank is divided into separate areas or zones whereby the supply of fluid to each bubbler zone is controlled. The bubbler zone controller may be used to initiate or diminish a vortex in the slurry as the screen is being raised out of the tank. Another embodiment includes a fiber dispenser controller for sequentially adding different fibers to the slurry.

    摘要翻译： 提供了一种用于控制纤维增强预制件中的纤维沉积的有效的低成本方法和装置。 在该方法中，将主屏幕放置在填充有液体的罐中。 主屏幕具有主表面，直立侧壁和形成在其中的多个开口。 将增强纤维加入到液体中以产生浆料。 主屏幕通过浆料升高到浆料顶部下方的水平，从而使增强纤维沉积在主屏幕上。 将保持器屏幕插入浆料中，使得增强纤维夹在主屏幕和保持器屏幕之间。 主屏幕和保持架屏幕都从槽中升起，有效地形成具有最小变形的预成型件。 另一个实施例包括用于混合浆料的起泡器区域控制装置。 罐被分成独立的区域或区域，由此控制每个起泡器区域的流体供应。 起泡器区域控制器可用于在屏幕从罐中升出时启动或减少浆料中的涡流。 另一个实施例包括一个光纤分配器控制器，用于将不同的纤维顺序地添加到浆料中。