发明申请
- 专利标题: METHOD AND DEVICE FOR PRODUCING A PIPE MEMBER
- 专利标题(中): 用于生产管件的方法和装置
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申请号: US13884330申请日: 2012-07-17
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公开(公告)号: US20140183774A1公开(公告)日: 2014-07-03
- 发明人: Kazuhiro Ezure , Masao Motonaga , Naoya Mieda
- 申请人: Kazuhiro Ezure , Masao Motonaga , Naoya Mieda
- 申请人地址: JP Tokyo
- 专利权人: Sanoh Industrial Co., Ltd.
- 当前专利权人: Sanoh Industrial Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 优先权: JP2011-162772 20110726
- 国际申请: PCT/JP2012/068548 WO 20120717
- 主分类号: B29C43/02
- IPC分类号: B29C43/02
摘要:
An object of the present invention is to provide a method for producing a pipe, which is capable of reducing the amount of thermoplastic material, without complicating an device for producing a pipe. The present invention provides a method for producing a pipe, comprising a thermoplastic material filling process for filling a die with a thermoplastic material, and a thermoplastic material discharging process for pushing out an unsolidified part of the thermoplastic material in the molding die using pressurized fluid, wherein the thermoplastic material is mixed with a foaming agent, the method further comprises a process for foaming the thermoplastic material filling the molding die, and the thermoplastic material discharging process is a process for pushing out a inner part of the thermoplastic material foamed in the molding die, by using the pressurized fluid prior to solidification of the inner part.
公开/授权文献
- US09321195B2 Method and device for producing a pipe member 公开/授权日:2016-04-26
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