Method for manufacturing a monolithic plastic object, and an object obtained with this method
    2.
    发明授权
    Method for manufacturing a monolithic plastic object, and an object obtained with this method 失效
    用于制造整体式塑料物体的方法和使用该方法获得的物体

    公开(公告)号:US06277896B1

    公开(公告)日:2001-08-21

    申请号:US09308427

    申请日:1999-08-17

    IPC分类号: B29C4406

    CPC分类号: B29C44/14 B29C44/105

    摘要: A method for manufacturing a plastic object may include the steps of: (a) providing an injection moulding device with a mould that includes two mould parts which in a closed position define a mould cavity; (b) providing foaming means for causing foaming in the mould cavity of plastic injected into the mould cavity; (c) providing blocking means for temporarily rendering the foaming means effectively inactive; (d) energizing the blocking means; (e) choosing as plastic a mixture of two plastics, wherein the first plastic is a non-type A plastic and the second plastic is a type A plastic that constitutes a maximum of roughly 30 percent by mass of the mixture, wherein the type A plastic is a plastic with high melt strength compatible with the first plastic, for instance HMS PP which is high-melt-strength polypropylene; (f) causing a formed object to cool to a chosen temperature, opening the mould cavity and removing the cooled object.

    摘要翻译: 塑料制品的制造方法可以包括以下步骤:(a)提供具有模具的注射成型装置,所述模具包括两个在关闭位置限定模腔的模具部件; (b)提供发泡装置,用于在注入到模腔中的塑料的模腔中引起发泡; (c)提供用于暂时使发泡装置有效地不起作用的阻挡装置; (d)给阻挡装置通电; (e)以塑料形式选择两种塑料的混合物,其中第一种塑料是非A型塑料,第二种塑料是A型塑料,其占混合物质量的大约30质量%,其中A型 塑料是与第一种塑料相容的高熔体强度的塑料,例如高熔点聚丙烯的HMS PP; (f)使成形物体冷却到所选择的温度,打开模腔并移除被冷却的物体。