发明名称 |
Process for manufacture of precision interstitial-free steel tubes |
摘要 |
A process for producing precision steel tubes includes cold forming tube blanks, in particular in a plurality of forming steps, with or without an internal tool. In this process, a tube blank made from interstitial free IF steel is used as the starting material.
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申请公布号 |
US6290788(B1) |
申请公布日期 |
2001.09.18 |
申请号 |
US19990214691 |
申请日期 |
1999.02.08 |
申请人 |
MANNESMANN AG |
发明人 |
CLAUS RONALD;WIETE JüRGEN;HAHN RüDIGER;MEIMETH STEFAN |
分类号 |
B21C1/22;C22C38/00;C22C38/12;C22C38/14;(IPC1-7):C21D8/10 |
主分类号 |
B21C1/22 |
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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