发明名称 |
METHOD AND DEVICE FOR COOLING STEEL SHEET |
摘要 |
The present invention relates to a method for cooling a steel plate comprising the steps of: forming a water pool with jets of cooling water being injected to impinge on one another by using one slit nozzle and a plurality of induced laminar flow nozzles, the slit nozzle being provided in a position on an upper surface side of the steel plate, and the induced laminar flow nozzles being provided in a position on a lower surface side of the steel plate along a transfer direction and a direction perpendicular to the transfer direction; and passing the steel plate into the water pool, wherein when a top portion of the steel plate' passes over the induced laminar flow nozzles located at least on the side of highest upstream, a volume of the cooling water to be injected from each of the induced laminar flow nozzles is reduced. According to the method of the present invention, when on-line cooling is performed for a hot rolled steel plate, the top portion of the steel plate can be prevented from being super cooled, and the steel plate can therefore be uniformly cooled. <IMAGE>
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申请公布号 |
EP1428589(A1) |
申请公布日期 |
2004.06.16 |
申请号 |
EP20020767944 |
申请日期 |
2002.09.11 |
申请人 |
JFE STEEL CORPORATION |
发明人 |
TSUYAMA, SEISHI;FUJIBAYASHI, AKIO;TAGANE, AKIRA;TAKAHASHI, ISAO;OMATA, KAZUO |
分类号 |
B21B45/02;C21D1/60;C21D1/667;C21D9/46;C21D9/573;(IPC1-7):B21B45/02 |
主分类号 |
B21B45/02 |
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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