| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pass schedule setting method, and a method for manufacturing a thick steel plate capable of reducing the waiting time in the CR rolling method, and manufacturing a thick steel plate having excellent flatness and excellent accuracy of the plate thickness. <P>SOLUTION: In the pass schedule setting method, and the method for manufacturing the thick steel plate by using a reversible rolling mill having the function of cooling a work to be rolled, (i) the temperature of the work in the final pass is calculated when it is assumed that the work is cooled by the device for every pass, and it is determined whether or not the calculated temperature of the work satisfies the target value of the final finish temperature, (ii) if the calculated temperature is below the target value, one or two or more passes in which the temperature of the work satisfies the target value of the final finish temperature are determined by the convergent calculation by stopping the cooling of the work by the device, and (iii) if the calculated value exceeds the target value, one or two or more dummy passes in which the temperature of the work satisfies the target value of the final finish temperature are determined by the convergent calculation by adding the dummy passes to the plurality of passes. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
