发明名称 |
ANORDNING FOER INVAENDIG KALIBRERING AV STRAENGSPRUTANDE HAALPROFILER |
摘要 |
A synthetic-resin tube as it emerges longitudinally from an extruder is passed over a two-part mandrel. A coolant such as water issuing from the upstream part of the mandrel passes axially downstream around the mandrel and is drawn into openings at the downstream part of the mandrel to draw the tube inwardly by suction toward the mandrel and impart to this tube the exact shape of the mandrel. Either or both of these parts may be formed as a longitudinal succession of transverse vanes having external peripheral shapes corresponding to the desired internal shape to be imparted to the tube. It is also possible to form either or both of the parts of the mandrel as a hollow cylindrical body formed with intake or output openings constituted as slits running either in the direction of travel or transverse thereto. |
申请公布号 |
SE409089(B) |
申请公布日期 |
1979.07.30 |
申请号 |
SE19740014522 |
申请日期 |
1974.11.19 |
申请人 |
REIFENHAEUSER KG |
发明人 |
H REIFENHAEUSER |
分类号 |
B29B7/00;B29C47/00;B29C47/20;B29C47/90 |
主分类号 |
B29B7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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