发明名称 |
HOT-ROLLED STEEL SHEET MANUFACTURING DEVICE, AND HOT-ROLLED STEEL SHEET MANUFACTURING METHOD |
摘要 |
<p>The present invention provide a manufacturing apparatus of a hot-rolled steel sheet capable of cooling control of a steel sheet even in a case of disposing a cooling device capable of cooling from inside a finishing mill. The manufacturing apparatus of a hot-rolled steel sheet comprises: an immediate rapid-cooling device 20, which is capable of spraying cooling water with a high water volume density, at least a part thereof being disposed inside a final stand in the row of hot finishing mills; a device 45 for measuring a temperature on an entry side of a final stand, which measures a surface temperature of a steel sheet on an entry side of the final stand; a device 47 for measuring a steel sheet passing speed, which measures a passing speed of the steel sheet on the entry side of the final stand; a device 51 for predicting a rapid-cooling stopping temperature, which calculates a predicted rapid-cooling stopping temperature based on the surface temperature of the steel sheet, the steel sheet passing speed, and the water supply volume or water supply pressure of the immediate rapid-cooling device respectively measured; and an immediate rapid-cooling control device 52, which corrects the water supply volume or water supply pressure of the immediate rapid-cooling device such that the predicted rapid-cooling stopping temperature matches a targeted rapid-cooling stopping temperature.</p> |
申请公布号 |
EP2505277(A4) |
申请公布日期 |
2013.06.19 |
申请号 |
EP20100833136 |
申请日期 |
2010.11.18 |
申请人 |
NIPPON STEEL & SUMITOMO METAL CORPORATION |
发明人 |
TACHIBANA, HISAYOSHI;NAKAGAWA, SHIGEMASA |
分类号 |
B21B37/76;B21B37/00;B21B45/02;B21C51/00 |
主分类号 |
B21B37/76 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|