Insulation wrapping strip with variable configuration
    4.
    发明授权
    Insulation wrapping strip with variable configuration 失效
    绝缘包装条可变配置

    公开(公告)号:US5174845A

    公开(公告)日:1992-12-29

    申请号:US732151

    申请日:1991-07-18

    申请人: Phillip C. Petty

    发明人: Phillip C. Petty

    摘要: The insulating coating for an object such as a rocket motor casing is formed by wrapping a strip of insulating material upon the surface of a rotating mandrel. By means of this invention, it is possible to wrap a strip of malleable material such as rubber from an extruder onto a complex shape while exercising precise thickness control, thereby eliminating the need for machining the outer surface. The strip is run through a forming mill of unique construction which shapes the strip during the wrapping process to conform most precisely with the topography of the mandrel. The mill automatically varies both the taper and the width of the strip. The final wrapped product has a smooth outer surface that requires minimal finishing.

    摘要翻译: 用于诸如火箭发动机壳体的物体的绝缘涂层通过将绝缘材料条缠绕在旋转心轴的表面上而形成。 通过本发明,可以在进行精确的厚度控制的同时将来自挤出机的可延展材料如橡胶条包裹在复杂形状上,从而消除了加工外表面的需要。 带材穿过独特结构的成型机,其在包装过程中成形条,以最准确地与心轴的形状一致。 磨机自动改变条带的锥度和宽度。 最终包装的产品具有光滑的外表面,需要最少的精加工。

    Apparatus for shaping hollow extrudates of a plastic material
    8.
    发明授权
    Apparatus for shaping hollow extrudates of a plastic material 失效
    用于形成塑料材料的中空挤出机的装置

    公开(公告)号:US3795471A

    公开(公告)日:1974-03-05

    申请号:US3795471D

    申请日:1972-03-03

    申请人: AMUNT SPA

    发明人: MILANI G

    摘要: An apparatus for impressing fancy patterns on the outer surface of extrudates of a plastic material, particularly a thermoplastic material. A continuous band or web is inserted between a mould wall and the extrudate outer surface and is fed forward concurrently with the extrudate, negative pressure being employed to imprint on the extrudate the desired patterns which are reproduced on the continuously advancing web or band. Preferably, the band or web is either porous or foraminous.

    摘要翻译: 一种用于在塑料材料的挤出物的外表面上印刷花式图案的装置,特别是热塑性材料。 在模具壁和挤出物外表面之间插入连续的带或网,并且与挤出物同时向前馈送,负压在挤出物上压印在连续前进的幅材或带上再现的期望图案。 优选地,带或网是多孔的或有孔的。