| 发明名称 |
Method and apparatus for extrusion of profiled helical tubes |
| 摘要 |
The present invention relates to a method of forming and an apparatus for forming a profiled helical tube (100) using a rotating or non-rotating profile die (102) which may have a helical extrusion gap. The extruded tube itself may be rotated by a haul-off mechanism. |
| 申请公布号 |
GB2440615(A) |
申请公布日期 |
2008.02.06 |
| 申请号 |
GB20070013395 |
申请日期 |
2007.07.11 |
| 申请人 |
SCHLUMBERGER |
发明人 |
MICHAEL SHEPHERD;LAWRENCE LEE |
| 分类号 |
B29C47/00 |
主分类号 |
B29C47/00 |
| 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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