| 发明名称 |
Bi-directional mandrel for drawing pipes has central plug with diverging and converging faces |
| 摘要 |
<p>A mandrel for drawing pipes has a first cylindrical length (6) separated by a diverging conical profile from a second cylindrical length (7) of greater diameter. The large diameter shoulder section (7) translates through a converging conical profile (5) to a further cylindrical section (8).</p> |
| 申请公布号 |
DE10339874(A1) |
申请公布日期 |
2005.03.24 |
| 申请号 |
DE2003139874 |
申请日期 |
2003.08.29 |
| 申请人 |
KM EUROPA METAL AG |
发明人 |
KALKENINGS, PETER;DUCOFFE, THIERRY |
| 分类号 |
B21C1/24;B21C3/16;(IPC1-7):B21C3/16 |
主分类号 |
B21C1/24 |
| 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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