Method and apparatus for heating lengths of thermoplastic material
    2.
    发明授权
    Method and apparatus for heating lengths of thermoplastic material 失效
    用于加热热塑性材料长度的方法和装置

    公开(公告)号:US4320077A

    公开(公告)日:1982-03-16

    申请号:US213853

    申请日:1980-12-08

    申请人: Thomas F. Moran

    发明人: Thomas F. Moran

    摘要: The method and apparatus disclosed herein provide a stratified heat bath for use in the heating stage of thermoplastic deformation. It allows for heating of central sections of the thermoplastic lengths in order to render said lengths susceptible to deformation without heating the end sections or tangents of said lengths, permitting the ends to retain their original shape. In the case of tubular lengths, such as lengths of PVC pipe, the invention provides for more rapid heating than in the prior art.

    摘要翻译: 本文公开的方法和装置提供了一种用于热塑性变形加热阶段的分层热浴。 它允许加热热塑性长度的中心部分,以使得所述长度易于变形,而不加热所述长度的端部或切线,从而允许端部保持其原始形状。 在诸如PVC管的长度的管状长度的情况下,本发明提供比现有技术更快速的加热。

    Method of curing composite parts
    9.
    发明授权
    Method of curing composite parts 失效
    固化复合部件的方法

    公开(公告)号:US5051226A

    公开(公告)日:1991-09-24

    申请号:US408888

    申请日:1989-09-18

    摘要: A method for curing fiber-reinforced resin matrix composite materials (22) includes the steps of providing a form (14) and positioning uncured composite material (22) on the form (14) substantially into a desired shape. The composite material (22) is then cured by providing a fluid bath (10) heated to a predetermined temperature, and heating the composite material (22) by immersing the positioned composite material (22) on the form (14) into the fluid bath (10) for a predetermined time. The predetermined time is sufficient to allow the composite material (22) to become cured and to heat the composite material (22) at a rate sufficient to provide resin flow prior to hardening. Compressive pressure is provided on the composite material (22) while it is immersed in the fluid bath (10).

    摘要翻译: 用于固化纤维增强树脂基质复合材料(22)的方法包括以下步骤:提供形式(14)并将未固化的复合材料(22)定位在所述形式(14)上,基本上形成所需的形状。 然后通过提供加热到预定温度的流体浴(10)来固化复合材料(22),并通过将定位的复合材料(22)浸入到形式(14)上来加热复合材料(22)进入流体浴 (10)预定时间。 预定时间足以允许复合材料(22)固化并以足以在硬化之前提供树脂流动的速率加热复合材料(22)。 当复合材料(22)浸入流体浴(10)中时,提供压缩压力。

    Staged pultrusion molding of composites
    10.
    发明授权
    Staged pultrusion molding of composites 失效
    复合材料的分阶段拉挤成型

    公开(公告)号:US4894190A

    公开(公告)日:1990-01-16

    申请号:US248673

    申请日:1988-09-26

    申请人: Robert V. Kromrey

    发明人: Robert V. Kromrey

    摘要: A continuous process method of molding composites. The method includes substantially filling a pressure chamber with a solid flowable polymer. The pressure chamber has a series of subchambers separated by a series of spaced apart baffles, but connected through baffle openings. A tube connects at least two subchambers, a transferring subchamber and a receiving subchamber. The polymer is displaced through the tube producing a polymer flow in the chamber through the baffle openings from the receiving subchamber to the transferring subchamber causing the receiving subchamber to have a higher pressure than the transferring subchamber. A composite precursor is passed through the pressure chamber by entering the precursor through the low pressure transferring subchamber wherein the composite precursor is exposed to pressure caused by the solid flowable polymer in order to cure the composite.

    摘要翻译: 复合材料的连续加工方法。 该方法包括用固体可流动聚合物基本上填充压力室。 压力室具有由一系列间隔开的隔板分开的一系列子室,但是通过挡板开口连接。 管连接至少两个子室,转移子室和接收子室。 聚合物通过管移动,通过从接收子室到转移子室的挡板开口在室中产生聚合物流,使得接收子室具有比转移子室更高的压力。 将复合前体通过低压转移子室进入前体而通过压力室,其中复合前体暴露于由固体可流动聚合物引起的压力以固化复合材料。