发明授权
US4159889A Method of and apparatus for treating the outer surface and inner surface
of a pipe of a thermoplastic resinous material produced by extrusion
失效
用于处理通过挤出生产的热塑性树脂材料的管的外表面和内表面的方法和设备
- 专利标题： Method of and apparatus for treating the outer surface and inner surface of a pipe of a thermoplastic resinous material produced by extrusion
- 专利标题（中）： 用于处理通过挤出生产的热塑性树脂材料的管的外表面和内表面的方法和设备
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申请号： US771423申请日： 1977-02-24
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公开(公告)号： US4159889A公开(公告)日： 1979-07-03
- 发明人: Kazuo Yagi , Kazuhiro Masumoto
- 申请人： Kazuo Yagi , Kazuhiro Masumoto
- 申请人地址： JPX Tokyo
- 专利权人： Mitsui Petrochemical Industries, Inc.
- 当前专利权人： Mitsui Petrochemical Industries, Inc.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX48-107543 19730926; JPX48-111459 19730926
- 主分类号： B29C47/00
- IPC分类号： B29C47/00 ; B29C47/28 ; B29C47/90 ; B29C17/07
摘要：
A method of treating the outer surface of a pipe of a thermoplastic resinous material produced by extrusion by extruding molten resin from an extruder and sizing the same by a sizing die, and supplying a lubricant to a front end portion of the sizing die along the front end portion which is disposed in spaced juxtaposed relationship with the extruder.An apparatus for treating the outer surface of a pipe of a thermoplastic resinous material produced by extrusion including a sizing die for sizing the pipe extruded from an extruder for extruding a thermoplastic resin in tubular form, and lubricant supply means disposed at a front end portion of the sizing die in spaced juxtaposed relationship with the extruder for supplying a lubricant along the front end portion of the sizing die.
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