SPRITZGIESSVERFAHREN UND SPRITZGIESSWERKZEUG

    公开(公告)号:EP2043834A1

    公开(公告)日:2009-04-08

    申请号:EP07763733.8

    申请日:2007-07-04

    IPC分类号: B29C45/17 B29C33/10 B29C33/30

    摘要: The invention describes a process for the production of a polymer moulding (2) with an internal space (3), in which a main cavity (9) is entirely filled with melt (14), and after solidification of the melt (14) at the cavity walls (20), at one end of the main cavity (9), liquid (16) is passed under pressure through a feed (15) into the melt (14), and, at the opposite end of the main cavity (9), an ancillary cavity (10) is opened, thus displacing melt (14) from the moulding (2) into the ancillary cavity (10) and producing the internal space (3) in the moulding (2), where the ancillary cavity (10) has a discharge opening (18). Attached to the discharge opening (18), there is a discharge cavity (24), where through filling of the ancillary cavity (10) with melt (14) a portion thereof is passed under pressure through the discharge opening (18) into the discharge cavity (24), and the liquid (16) is passed under pressure through the discharge opening (18), and the melt (14) located behind this is passed under pressure into the discharge cavity (24).

    摘要翻译: 本发明描述了一种生产具有内部空间(3)的聚合物模制品(2)的方法,其中主空腔(9)完全充满熔体(14),并且在熔体(14)凝固 在腔室(9)的一端处的腔壁(20)中,液体(16)在压力下通过进料口(15)进入熔体(14),并且在主腔室的相对端 如图9所示),打开辅助腔体(10),从而将熔体(14)从模塑件(2)移入辅助腔室(10)并在模塑件(2)中产生内部空间(3),其中辅助腔室 (10)具有排出口(18)。 连接到排放口(18)上的是排放腔(24),其中通过向熔体(14)填充辅助腔(10)的一部分在压力下通过排放口(18)进入排放口 (24),并且液体(16)在压力下通过排放口(18),并且位于其后面的熔体(14)在压力下通过排放腔(24)。

    PROCESS AND APPARATUS FOR INJECTION MOULDING
    6.
    发明公开
    PROCESS AND APPARATUS FOR INJECTION MOULDING 有权
    注射成型工艺和设备

    公开(公告)号:EP1414634A1

    公开(公告)日:2004-05-06

    申请号:EP02751307.6

    申请日:2002-07-10

    IPC分类号: B29C45/17

    摘要: A process and apparatus for plastics injection moulding comprises injecting a quantity of molten plastics material into a mould cavity (30) and injecting pressurised gas (52) or pressurised liquid into the plastics material in the mould cavity. After holding the pressure of the gas or liquid on the plastics material in the mould cavity for a period of time in order to apply a packing pressure to the plastics material, a portion of the molten plastics material is expelled into one or more secondary cavities (32) or expelled back into the barrel (22) of the injection moulding machine. The step of injecting the plastics material may be effected with or without packing of the plastics material prior to the injection of the pressurised gas or liquid.

    摘要翻译: 一种用于塑料注射成型的方法和设备包括将一定量的熔融塑料材料注入模腔(30)中并将加压气体(52)或加压液体注入模腔中的塑料材料中。 在将模腔中的塑料材料上的气体或液体的压力保持一段时间以便对塑料材料施加填充压力之后,一部分熔融塑料材料被排出到一个或多个第二腔体( 32)或者推回注射模塑机的筒(22)中。 在注入加压气体或液体之前,注入塑料材料的步骤可以在填充或不填充塑料材料的情况下进行。