Method for extrusion
    12.
    发明授权
    Method for extrusion 失效
    挤压方法

    公开(公告)号:US4028919A

    公开(公告)日:1977-06-14

    申请号:US712673

    申请日:1972-08-09

    申请人: Alfred R. Austen

    发明人: Alfred R. Austen

    摘要: Die arrangement for use with conventional and hydrostatic extrusion presses consisting of a first die for providing a first extruded section of a billet and a second die cooperating with the first die to further extrude said first extruded section to final shape. Successive dies beyond the second die are contemplated to provide successive step-wise extrusion for greater reductions, especially of large billets. The method of the invention comprises step-wise incremental sequential extrusion of the billet and extruded portions of the billet until the final shape is achieved.

    摘要翻译: 用于与用于提供坯料的第一挤压部分的第一模具和与第一模具配合的第二模具的常规和静液压挤压机的模具布置,以进一步将所述第一挤压部分挤出成最终形状。 考虑到超过第二模具的连续模具提供连续的逐步挤压,以实现更大的减少,尤其是大型坯料。 本发明的方法包括坯料和坯料的挤出部分的逐步增量顺序挤出,直到达到最终形状。

    Solid state extrusion of semi-crystalline fluoro-polymer films
    17.
    发明授权
    Solid state extrusion of semi-crystalline fluoro-polymer films 有权
    半结晶氟聚合物膜的固态挤出

    公开(公告)号:US08226876B1

    公开(公告)日:2012-07-24

    申请号:US11434575

    申请日:2006-05-09

    IPC分类号: C08J5/00

    摘要: Disclosed herein is a method to produce a semi-crystalline fluoro-polymer film. A semi-crystalline fluoro-polymer material is used. The material is compressed to produce the film. During compression, the material is maintained at a temperature below the melting point of the material. The compression step can be cycled to allow cooling of the material between compression stages. Alternative methods are provided for compressing the material with a co-extrusion substrate, extruding the material and utilizing mandrel expansion for the material.

    摘要翻译: 本文公开了一种制备半结晶氟聚合物膜的方法。 使用半结晶氟聚合物材料。 该材料被压缩以产生该膜。 在压缩期间,材料保持在低于材料熔点的温度。 可以循环压缩步骤以允许在压缩级之间冷却材料。 提供替代方法用于使用共挤出基底压缩材料,挤出材料并利用材料的心轴扩张。

    Apparatus for hydrostatic extrusion of thermoplastic polymers
    18.
    发明授权
    Apparatus for hydrostatic extrusion of thermoplastic polymers 失效
    热塑性聚合物静液压挤出装置

    公开(公告)号:US4363611A

    公开(公告)日:1982-12-14

    申请号:US202282

    申请日:1980-10-30

    摘要: A hydrostatic extrusion apparatus whereby thermoplastic polymers can be hydrostatically extruded in a solid state is described. The apparatus includes:(a) an outer casing or tooling support means,(b) a container assembly concentrically contained within the outer casing and having pressure means attached thereto to provide extrusion pressure to a fluid in the assembly, sealing means to prevent leakage of the fluid, means for holding a polymer billet and including a die portion, and(c) a receiver assembly axially aligned with the container assembly concentrically within the outer casing having pressure means to clamp the container and receiver assemblies together, a mandrel for holding and aligning a mandrel-head in spaced relationship with the die, and means for receiving, lubricating and cooling the extrudate.Optionally, means for preheating and loading the polymers into the container assembly are provided whereby the press may be operated on a semi-continuous or continuous basis.

    摘要翻译: 描述了一种流体静力学挤出设备,其中热塑性聚合物可以以固态方式被流体静力挤出。 该装置包括:(a)外壳或工具支撑装置,(b)容器组件,其同心地容纳在外壳内并具有连接到其上的压力装置,以向组件中的流体提供挤压力,以防止泄漏 流体,用于保持聚合物坯料并包括模具部分的装置,以及(c)与容器组件轴向对准的容器组件的接收器组件,其同心地位于外壳内,具有用于将容器和接收器组件夹紧在一起的压力装置,用于保持和 对准与模具间隔开的心轴头,以及用于接收,润滑和冷却挤出物的装置。 可选地,提供用于将聚合物预热和加载到容器组件中的装置,由此压力机可以在半连续或连续的基础上操作。

    Timed-action actuators
    19.
    发明授权
    Timed-action actuators 失效
    定时执行器

    公开(公告)号:US4288064A

    公开(公告)日:1981-09-08

    申请号:US146745

    申请日:1980-05-05

    申请人: Alfred R. Austen

    发明人: Alfred R. Austen

    摘要: A resettable apparatus including a deformable restraining element adapted to contact and restrain active elements for producing a time-delayed force or displacement response. The apparatus functions by the release of the force and/or displacement active element by the creep deformation action of the restraining element at a time interval after actuation of the active element.

    摘要翻译: 一种可复位装置,包括可变形约束元件,其适于接触和约束有源元件以产生延时的力或位移响应。 该装置通过在有源元件致动之后的时间间隔内由限制元件的蠕变变形作用释放力和/或位移有源元件来起作用。