Apparatus for extruding plastic materials
    1.
    发明授权
    Apparatus for extruding plastic materials 失效
    挤出塑料材料的设备

    公开(公告)号:US4995802A

    公开(公告)日:1991-02-26

    申请号:US386102

    申请日:1989-07-28

    IPC分类号: B29C47/08 B29C47/96 C06B21/00

    摘要: An apparatus for extruding plastic materials, particularly plastic explosives or propellants, has a casing, at least one pressing member moving therein, e.g. a rotating extruder screw and a shaping retainer plate terminating the casing at the outlet side, which is fixed to the casing and can be raised therefrom if an excessive overpressure occurs. So as to ensure rapid raising and a rapid release of the overpressure when a safety hazard occurs, the retainer plate is fixed to the casing by a mechanical or a gas pressure spring, whose spring tension is adjustable. It is also possible to provide a hydraulic pressure directed in opposition to the spring and by which the retainer plate can be raised in random manner from the casing.

    摘要翻译: 用于挤出塑料材料,特别是塑料炸药或推进剂的装置具有壳体,至少一个在其中移动的按压构件。 旋转挤出机螺杆和成形保持板,其在出口侧终止壳体,其固定到壳体并且如果发生过大的超压则可从其升高。 为了确保在发生安全隐患时快速提升和快速释放超压,保持板通过机械或气体压力弹簧固定在壳体上,弹簧张力可调。 也可以提供与弹簧相对的液压,并且保持板可以以任意的方式从壳体升高。

    Apparatus for producing propellant charge powder in the form of strands
    2.
    发明授权
    Apparatus for producing propellant charge powder in the form of strands 失效
    用于制造股线形式的推进剂充电粉末的装置

    公开(公告)号:US4622000A

    公开(公告)日:1986-11-11

    申请号:US705689

    申请日:1985-02-26

    IPC分类号: B30B11/22 C06B21/00 A23G3/00

    CPC分类号: B30B11/221 C06B21/0075

    摘要: For the continuous or discontinuous production of propellant charge powdern strand form with axially parallel channels having a clearly defined identical diameter and reproducible geometry of the channel arrangement, a press is provided, which has at least one cavity, and which is provided in its strand-forming area with a plurality of needles for shaping the channels, said needles being constructed as open hollow needles and are subject to the action of a fluid with a limited overpressure.

    摘要翻译: 对于连续或不连续地生产具有轴向平行通道的推进剂装料粉末,其具有明确限定的相同直径和可重复的通道结构的几何形状,提供具有至少一个空腔并且设置在其股线中的压力机 成形区域具有用于成形通道的多个针,所述针被构造为敞开的空心针并且受到具有有限超压的流体的作用。