发明名称 |
Rippled surface stopper rod system |
摘要 |
The present invention concerns stopper rod system for use in a metallurgical vessel, comprising a stopper rod and a nozzle. At least one of the stopper rod nose and the internal surface of the nozzle bore comprise a plurality of ripples that are arranged such that the size of a flow channel between the stopper rod nose and the internal stopper rod when the stopper rod system is in an open position discontinuously increases in size as a function of the distance downstream from the point of contact between the stopper rod and the nozzle.
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申请公布号 |
US2007120299(A1) |
申请公布日期 |
2007.05.31 |
申请号 |
US20040576999 |
申请日期 |
2004.11.03 |
申请人 |
RICHAUD JOHAN L;HEASLIP LAWRENCE J;DORRICOTT JAMES |
发明人 |
RICHAUD JOHAN L.;HEASLIP LAWRENCE J.;DORRICOTT JAMES |
分类号 |
C21B7/16;B22D41/18 |
主分类号 |
C21B7/16 |
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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