发明名称 |
SYSTEMS AND METHODS FOR DEFORMING AN OUTER WALL OF PIPE. |
摘要 |
<p>A method of deforming an outer wall of polymer pipe is provided. The method includes: forming dual-wall pipe having a smooth wall and a corrugated wall; extruding an outer wall of pipe onto the corrugated wall of the dual-wall pipe; penetrating the outer wall of pipe with a vacuum punch; and drawing a vacuum between the corrugated wall and the outer wall via the vacuum punch; wherein the vacuum drawn between the corrugated wall and the outer wall causes the outer wall to deform in a direction towards the corrugated wall. An apparatus for forming an outer wall of pipe and a mold configured to form a coupling preform in a segment of continuously-extruded and molded polymer pipe are also provided.</p> |
申请公布号 |
MX2011002520(A) |
申请公布日期 |
2011.09.21 |
申请号 |
MX20110002520 |
申请日期 |
2011.03.07 |
申请人 |
ADVANCED DRAINAGE SYSTEMS, INC. |
发明人 |
GERALD S. SUTTON |
分类号 |
B29C63/20;B29D23/18 |
主分类号 |
B29C63/20 |
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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