Forming of thermoplastic polymers
    5.
    发明授权
    Forming of thermoplastic polymers 失效
    热塑性聚合物的形成

    公开(公告)号:US3846522A

    公开(公告)日:1974-11-05

    申请号:US34139573

    申请日:1973-03-15

    申请人: ELPEX INC

    发明人: GOLDMAN C

    摘要: Thermoplastic resin in comminuted form is subjected to compacting forces of magnitudes and rates, sufficient to shape an article in a retaining mold. Densities can be controlled within wide limits, by controlling the final compaction volume and force on the resin. Comminuted resin is heated, prior to forming, outside the mold, by utilizing spray-drying, fluidized-bed, infrared, dielectric heating, and others means individually or in combination, to attain the desired resin temperatures. Springback in forged plastics is minimized.

    摘要翻译: 经粉碎形式的热塑性树脂经受大小和速率的压实力,足以使保持模具中的制品成型。 通过控制树脂上的最终压实体积和力,可以在极限范围内控制密度。 通过喷雾干燥,流化床,红外线,电介质加热等手段将粉碎的树脂在形成之前加热,以单独地或组合地加热,以获得所需的树脂温度。 弹性塑料的回弹最小化。

    Pressware die set with product ejectors at outer forming surfaces
    7.
    发明申请
    Pressware die set with product ejectors at outer forming surfaces 失效
    在外部成型表面上具有产品喷射器的冲压件模具

    公开(公告)号:US20040046284A1

    公开(公告)日:2004-03-11

    申请号:US10236721

    申请日:2002-09-06

    摘要: An improved pressware die set includes mechanical ejectors for removing formed product from the punch. A preferred embodiment includes rocker-style ejectors free from edges or other asperities which may tend to snag and mar the product during the production process. Most preferably, the outward surfaces of the rocker members extend beyond the perimeter of a paperboard blank positioned for forming so the paperboard blank does not encounter an obstruent outward edge during forming.

    摘要翻译: 改进的压制模具包括用于从冲头移除成形产品的机械喷射器。 一个优选的实施例包括摇摆式喷射器,其没有边缘或其它粗糙度,这可能倾向于在制造过程中阻塞和损坏产品。 最优选地,摇杆构件的外表面延伸超过用于成形的纸板坯料的周边,使得纸板坯料在成形期间不会遇到阻塞的向外边缘。

    Pallet And Method For Manufacturing The Same
    10.
    发明申请
    Pallet And Method For Manufacturing The Same 审中-公开
    托盘及其制造方法

    公开(公告)号:US20070204769A1

    公开(公告)日:2007-09-06

    申请号:US11628840

    申请日:2005-04-01

    IPC分类号: B65D19/38

    摘要: A pallet and a method for manufacturing the same are provided. The pallet comprises a pallet body, a skid to reinforce the pallet body and means to interlock the pallet body and the skid. The pallet body and the skid are moulded from a mouldable composition comprising between about 40 to 60 wt % of a fibre mixture and between about 15 to 45 wt % of an adhesive. The method for manufacturing the pallet begins by preparing the mouldable composition. A mould cavity is loaded with the mouldable composition up to about 90% of the capacity of the mould cavity before applying a packing pressure of between about 435 to 870 psi to the mouldable composition. A predetermined clearance of between about 0.1 to 0.5 mm is maintained between a first mould part defining the mould cavity and a second mould part. A moulded product is removed from the mould cavity when the mouldable composition is substantially cured.

    摘要翻译: 提供了一种托盘及其制造方法。 托盘包括托盘主体,用于加强托盘主体的滑板和用于联锁托盘主体和滑板的装置。 托盘主体和滑板由可塑组合物成型,包括约40至60重量%的纤维混合物和约15至45重量%的粘合剂。 制造托盘的方法开始于制备可模制的组合物。 在将可塑组合物施加到可模制组合物的约435至870psi的包装压力之前,将模腔装载至模具腔的容量的大约90%。 在限定模腔的第一模具部件和第二模具部件之间保持约0.1至0.5mm之间的预定间隙。 当可模制组合物基本固化时,模制产品从模腔中移除。