| 发明名称 |
A compound metallic body. |
| 摘要 |
<p>A compound metallic body for manufacturing steel pipes having an internal lining of special steel or alloy, such compound metallic body being produced from a steel billet 12 comprising an axial core 14 of special steel or alloy, said billet and core being jointly subjected to an upsetting operation and subsequently drilled by a suitable tool 16, whereby perfect metallurgical cohesion is obtained.</p> |
| 申请公布号 |
EP0084817(A1) |
申请公布日期 |
1983.08.03 |
| 申请号 |
EP19830100253 |
申请日期 |
1983.01.13 |
| 申请人 |
BILBAO EQUIGUREN, JESUS MARIA;MARTINEZ GARIN DE LAZCANO, JOSE IGNACIO |
发明人 |
BILBAO EQUIGUREN, JESUS MARIA |
| 分类号 |
F16L9/02;B21C23/01;B21C23/22;B21J5/10;B21K21/00;B21K25/00;(IPC1-7):21C23/22 |
主分类号 |
F16L9/02 |
| 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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