Method and apparatus for injection molding hollow shaped article
    1.
    发明授权
    Method and apparatus for injection molding hollow shaped article 失效
    注塑成型方法和装置

    公开(公告)号:US5173241A

    公开(公告)日:1992-12-22

    申请号:US490597

    申请日:1990-05-24

    CPC分类号: B29C45/1732

    摘要: In the injection molding of a hollow shaped article by the injection of not only molten synthetic resin but also compressed gas into a die, a method is provided by this invention which effects the supply of the compressed gas with a multistage compressor and the injected compressed gas is recovered in a recovery container connected to the suction side of the multistage compressor. For the injection molding of a hollow shaped article by the injection of not only molten synthetic resin but also compressed gas into a die, an apparatus is provided by this invention which has a gas nozzle for injecting the compressed gas into the die connected through a first switching valve to the discharge side of the multistage compressor and, at the same time, has the gas nozzle connected through a second switching valve to a recovery container connected to the suction side of the multistage compressor.

    摘要翻译: PCT No.PCT / JP89 / 01282 Sec。 371日期1990年5月24日 102(e)日期1990年5月24日PCT提交1989年12月21日PCT公布。 出版物WO90 / 07415 日本1990年7月12日。在通过不仅注入熔融合成树脂而且将压缩气体注入模具的中空成形制品的注射成型中,通过本发明提供了一种通过将压缩气体供应到 多级压缩机和喷射的压缩气体被回收到连接到多级压缩机的吸入侧的回收容器中。 对于通过不仅注入熔融合成树脂而且将压缩气体注入模具中的中空成形制品的注射成型,本发明提供了一种装置,其具有用于将压缩气体注入模具的装置,所述气体喷嘴通过第一 切换阀到多级压缩机的排出侧,并且同时具有通过第二切换阀连接到连接到多级压缩机的吸入侧的回收容器的气体喷嘴。