发明申请
WO02022342A1 DEVICE FOR SHAPING PLASTIC OBJECTS UNDER INERT ATMOSPHERE 审中-公开
用于形成大气中的塑料物体的装置

  • 专利标题: DEVICE FOR SHAPING PLASTIC OBJECTS UNDER INERT ATMOSPHERE
  • 专利标题(英): Device for shaping plastic objects under inert atmosphere
  • 专利标题(中): 用于形成大气中的塑料物体的装置
  • 申请号: PCT/FR2001/002798
    申请日: 2001-09-10
  • 公开(公告)号: WO02022342A1
    公开(公告)日: 2002-03-21
  • 主分类号: B29C45/17
  • IPC分类号: B29C45/17 B29C45/18 B29C47/10
DEVICE FOR SHAPING PLASTIC OBJECTS UNDER INERT ATMOSPHERE
摘要:
The invention concerns a device for producing plastic objects by shaping under inert atmosphere, comprising a hopper (1), an endless screw and means for shaping melted polymer. The device for injecting inert gas comprises a gas supply conduit (3), a gas injection surface at the hopper (1) wall and a homogenising chamber co-operating between the hopper (1) wall and the gas supply conduit (3). The end (32) of the gas supply conduit (3) oriented towards the injection surface is closed and has at least a radial orifice (33) for ejecting gas perpendicularly to its flow direction in the conduit.
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