发明授权
- 专利标题： Method and apparatus for manufacturing ribbed pipe
- 专利标题（中）： 制造胶管的方法和装置
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申请号： US679014申请日： 1991-05-02
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公开(公告)号： US5139730A公开(公告)日： 1992-08-18
- 发明人: Paul Holso , Eino Holso , Jyri Jarvenkyla , Dieter Scharwachter , Lennart Agren
- 申请人： Paul Holso , Eino Holso , Jyri Jarvenkyla , Dieter Scharwachter , Lennart Agren
- 申请人地址： ANX Philipsburg
- 专利权人： Uponor N.V.
- 当前专利权人： Uponor N.V.
- 当前专利权人地址： ANX Philipsburg
- 优先权： FIX895106 19891027
- 主分类号： B29C47/90
- IPC分类号： B29C47/90 ; B29C47/00 ; B29C47/12 ; B29C47/88
摘要：
The invention relates to a method and apparatus for manufacturing ribbed piping, wherein a formable mass in a plastic state is extruded into a substantially cylindrical forming space of a corrugator, the forming space being delimited by forming molds movable in the production direction of the apparatus and having grooves on the inner surface thereof for forming rib flanges. A stationary kernel portion of a mandrel cools the interior surface of the piping and extends beyond the forming space constituted by the forming molds of the corrugator.
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