Process for producing flat and annular-cross-section extrudates and
device for implementing the process
    7.
    发明授权
    Process for producing flat and annular-cross-section extrudates and device for implementing the process 失效
    用于生产扁平和环形横截面挤出物的方法和用于实施该方法的装置

    公开(公告)号:US5397514A

    公开(公告)日:1995-03-14

    申请号:US081279

    申请日:1993-06-25

    IPC分类号: B29C47/16 B29C47/22 B29C47/92

    摘要: In prior art processes of this kind the actual thickness of the extrudate is measured, compared with a reference thickness and the setting regions of an extrusion plant are controlled dependent upon the degree of difference. In order nevertheless to improve the quality of the extrudate in relation to the desired reference thickness, according to the invention the evolution strategy process is used. An increase in the convergence rate can also be attained by taking into account strategy parameters which can be deterministically or stochastically changed, whereby mixing including fixedly settable strategy parameters is also possible. In particular, knowledge of the process can be involved as qualitative process partial knowledge.

    摘要翻译: PCT No.PCT / EP91 / 01969 Sec。 371日期:1993年6月25日 102(e)日期1993年6月25日PCT 1991年10月19日PCT PCT。 公开号WO92 / 07701 日期5月14日。在这种现有技术的方法中,与参考厚度相比,测量挤出物的实际厚度,并且根据差异程度控制挤出设备的设定区域。 然而,为了提高挤出物相对于所需参考厚度的质量,根据本发明,使用进化策略方法。 通过考虑可以确定性地或随机地改变的策略参数,还可以获得收敛速度的增加,由此包括固定可设置的策略参数的混合也是可能的。 特别是,知识的过程可以作为定性过程的部分知识。

    Method and apparatus for moving a tube extrusion line along
    10.
    发明授权
    Method and apparatus for moving a tube extrusion line along 有权
    移动管材挤出生产线的方法和装置

    公开(公告)号:US09028235B2

    公开(公告)日:2015-05-12

    申请号:US13178335

    申请日:2011-07-07

    摘要: A method and apparatus for moving along a tube extrusion line. An extruded tube is pushed through the extrusion line, by means of pressure generated by an extruder, to a withdrawal unit that takes over further driving of the tube. In a first-moving along phase, in which the tube has not yet passed a sealing of a calibration cooling unit relative to the atmosphere, the latter is under atmospheric pressure. In a second phase, in which the tube has passed the sealing, the calibration and cooling unit is placed under underpressure. In the first phase, the tube is supported either by internal overpressure or by a mechanical inner guide. A support cylinder extends axially from a casing head of the extruder and extends coaxially into a calibration sleeve in a first section of the calibration and cooling unit. A support plate is disposed between the casing head and an inlet of the calibration sleeve and provides external support for a tube exiting the casing head.

    摘要翻译: 一种沿管挤出生产线移动的方法和装置。 将挤压管通过挤出机产生的压力推到挤出管线上,从而引导管接管进一步驱动。 在第一移动相中,其中管尚未通过校准冷却单元相对于大气的密封,后者处于大气压下。 在管已经通过密封的第二阶段中,校准和冷却单元被置于负压下。 在第一阶段,管由内部超压或机械内导向器支撑。 支撑筒从挤出机的套管头轴向延伸,并在校准和冷却单元的第一部分中同轴地延伸到校准套筒中。 支撑板设置在套管头和校准套筒的入口之间,并且为离开套管头的管提供外部支撑。