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.
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
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