发明名称 |
AUTO CONTROL METHOD OF THE MELT WEIGHT IN TUNDISH IN THE PROCESS OF CONTINUOUS CASTING |
摘要 |
A method of automatically controlling weight of molten steel within a tundish in the continuous casting process is provided to control the weight of molten steel to a predetermined value without intervention of an operator. A method of automatically controlling weight of molten steel within a tundish in the continuous casting process comprises: a step(S201) of setting a target weight of molten steel in the tundish and fully opening a slide gate until the weight of molten steel reaches a predetermined value; a step(S202) of determining whether the weight of molten steel has reached the predetermined value and repeating the step(S201) until the weight of molten steel reaches the predetermined value; a step(S203) of controlling the PI controllers such that a present weight of molten steel follows the target weight value by PI controllers when the weight of molten steel has reached the predetermined value; a step(S204) of adjusting a slide gate to a minimum opening distance for maintaining the target weight value according to the control results of the step(S203); a step(S205) of determining if the present weight of molten steel has exceeded the target weight value as much as a predetermined amount to repeatedly perform the step(S204) if the present weight of molten steel has not exceeded the target weight value; and a step(S206) of reducing the minimum opening distance of the slide gate if the present weight of molten steel has exceeded the target weight value as much as the predetermined amount.
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申请公布号 |
KR100797992(B1) |
申请公布日期 |
2008.01.28 |
申请号 |
KR20060133749 |
申请日期 |
2006.12.26 |
申请人 |
POSCO |
发明人 |
KIM, HONG JU;LEE, DAE SUNG;KIM, YOON HA |
分类号 |
B22D11/16;B22D41/38 |
主分类号 |
B22D11/16 |
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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