发明名称 |
Apparatus and method for controlling a stopper rod of a bottom pouring vessel |
摘要 |
A bottom pour casting apparatus (100) includes a vessel (114) having a bottom nozzle (118). A stopper rod (112) is coupled to a programmable controller (250) by linkage mechanism (250) for controlling the movement of the stopper rod (112) according to a pouring schedule. An LDT position sensor (216) is coupled to the stopper rod (112) by a cable (238) and also electronically to the controller (250) for sensing the actual position of the stopper rod during a pouring cycle and conveying this information directly to the controller (250) thereby bypassing any backlash present in the linkage mechanism (116) to enable precise control of the stopper rod movement. A method includes rezeroing the position sensor (116) at the beginning of each pouring cycle to account for slag build-up on the nozzle (118).
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申请公布号 |
US5312090(A) |
申请公布日期 |
1994.05.17 |
申请号 |
US19920992262 |
申请日期 |
1992.12.14 |
申请人 |
CMI INTERNATIONAL |
发明人 |
SEATON, WILLIAM W.;GILLETTE, RICHARD A.;SALGAT, MARK T. |
分类号 |
B22D41/20;(IPC1-7):B22D41/20 |
主分类号 |
B22D41/20 |
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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