发明名称 |
Tube rolling |
摘要 |
A multistand rolling mill for stretch reducing tubes is provided in which the first stands of a plurality of successive stands are operated to build up tension and at least one of said stands is provided with means for varying the roll speed to provide a desired speed step in those stands designed to build up tension.
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申请公布号 |
US4020667(A) |
申请公布日期 |
1977.05.03 |
申请号 |
US19750624880 |
申请日期 |
1975.10.23 |
申请人 |
FIRMA FRIEDRICH KOCKS |
发明人 |
DEMNY, WERNER;MOELTNER, HERMANN |
分类号 |
B21B17/14;(IPC1-7):B21B17/00 |
主分类号 |
B21B17/14 |
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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