Method and apparatus for forming a moulded article incorporating a
reinforcing structure
    67.
    发明授权
    Method and apparatus for forming a moulded article incorporating a reinforcing structure 失效
    用于形成包含加强结构的模制品的方法和装置

    公开(公告)号:US5501832A

    公开(公告)日:1996-03-26

    申请号:US238207

    申请日:1994-05-04

    申请人: Alfred A. Adams

    发明人: Alfred A. Adams

    摘要: The invention provides a method of moulding a reinforced structure for use in a subsequent moulding operation to form a moulded article, comprising the steps of heating a fibrous mat (10) formed from fibres held together by a thermoformable binder while between the parts (11) and (12) of a mould tool which parts (11) and (12) are pre-coated with a release agents; bringing the parts of the mould together using a vacuum with the mat (10) between them; allowing the mould tool, with the fibrous mat (10) therein to cool and removing the moulded reinforcing structure thus formed from the mould tool. The parts (11) and (12) of the mould are brought together by placing them in a vacuum forming table (14) and then evacuating the volume enclosed between the sheet (10) spanning the frame (15) and the lower part (13) of the table (14) when both are brought into contact.

    摘要翻译: 本发明提供了一种模制用于随后的模制操作中的增强结构以形成模制品的方法,包括以下步骤:加热由可热成型粘合剂保持在一起的纤维形成的纤维垫(10) 和(12),其中部分(11)和(12)预先涂覆有脱模剂; 使用它们之间的垫子(10)的真空将模具的部分一起放在一起; 允许模具具有其中的纤维垫(10)以冷却并从模具中移除由此形成的模制加强结构。 通过将模具的部件(11)和(12)放置在真空成型台(14)中,然后抽空包围在框架(15)和下部(13)之间的片材 )当两者接触时,桌子(14)。

    Method for producing a non-woven fabric with a thermally activated
adhesive surface
    69.
    发明授权
    Method for producing a non-woven fabric with a thermally activated adhesive surface 失效
    制造具有热活化粘合剂表面的无纺织物的方法

    公开(公告)号:US5301400A

    公开(公告)日:1994-04-12

    申请号:US31760

    申请日:1993-03-15

    申请人: Roger Boulanger

    发明人: Roger Boulanger

    摘要: A three-dimensional non-woven fabric with a thermally activated adhesive surface well suited for use as a facing fabric for covering a fibrous mat. The fabric comprises two adjoining fiber layers, namely an adhesive layer including bond-forming fibers fusible at a predetermined temperature and a facing layer of fibers having a considerably higher melting temperature than the bond-forming fibers. The fibers of both layers are mechanically engaged one with another and are arranged flat-wise in bundles interconnected at junctures by protuberant fiber packings disposed in a staggered relationship throughout the fabric. Bond-forming fibers are concentrated in the apex portions of the fiber packings to form the thermally activated adhesive surface. The invention also extends to a process for manufacturing the three-dimensional non-woven fabric, based on the so-called "rosebud" technique for producing foraminous webs. The invention further comprehends a molded fibrous mat article with a non-woven fabric facing layer, and a method for producing the article.

    摘要翻译: 一种具有热活化粘合剂表面的三维无纺织物,非常适合用作覆盖纤维毡的面料。 该织物包括两个相邻的纤维层,即包含在预定温度下易熔的粘合形成纤维的粘合剂层和具有比形成粘结的纤维相当高的熔融温度的相对的纤维层。 两层的纤维彼此机械地接合,并且以扁平方式布置成在通过整个织物以交错关系设置的突起纤维填料在接合处互相连接的束。 形成纤维的纤维集中在纤维填料的顶部,以形成热活化的粘合剂表面。 基于用于生产多孔网的所谓“玫瑰花蕾”技术,本发明还延伸到制造三维无纺织物的方法。 本发明进一步理解具有无纺织物面层的成型纤维垫制品及其制造方法。

    Apparatus for bending and forming a composite material sheet
    70.
    发明授权
    Apparatus for bending and forming a composite material sheet 失效
    用于弯曲和形成复合材料片的装置

    公开(公告)号:US5173314A

    公开(公告)日:1992-12-22

    申请号:US845261

    申请日:1992-03-03

    申请人: Masanori Hosoi

    发明人: Masanori Hosoi

    IPC分类号: B29C51/00 B29C51/08 B29C53/04

    摘要: For forming a resin-impregnated, fiber reinforced composite material sheet having laminated meshes of fibers into a U-shaped cross section, the sheet is placed onto a stationary forming die and an auxiliary forming die with the fibers of the sheet forming angles of approximately 45.degree. relative to opposite edges of an upper reference forming surface of the stationary die. Then, the sheet is pressed from above by a pneumatically expandable, elastic depressing die, whereby the auxiliary forming die is lowered against a resilient force relative to the stationary forming die. As the sheet is pressed further downwardly by the depressing die, the parts of the sheet which are to form flanges of the product are firmly held between the depressing die and the auxiliary forming die and bent downwards while the parts are subjected to extending forces in directions to prevent creases and lines from being formed by means of auxiliary forming ridges on the auxiliary forming die.

    摘要翻译: 为了形成具有纤维层叠的U形横截面的树脂浸渍的纤维增强复合材料片,将片材放置在固定成型模具和辅助成型模具上,其中片材成形角度约为45° DEG相对于固定模具的上参考形成表面的相对边缘。 然后,通过气动弹性压缩模具从上方压制片材,由此辅助成形模具抵抗相对于固定成形模具的弹性力降低。 当片材被压下的模具进一步向下压下时,形成产品凸缘的片材部分被牢固地保持在压模和辅助成形模具之间并向下弯曲,同时部件在方向上受到延伸的力 以防止在辅助成形模具上通过辅助成形脊形成折痕和线。