| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a rolling method which enables set up of a reversible rolling mill to be performed with high precision, and to provide a rolled sheet material available by the rolling method. <P>SOLUTION: The rolling method, which includes rolling on a sheet material by a plurality of passes by using a reversible cold rolling mill of single stand type, is characterized in that a plasticity factor Q<SB POS="POST">AN</SB>at a tip part of the sheet material at N-th pass is calculated with a following formula (1) by using a plasticity factor Q<SB POS="POST">BN-1</SB>at a tail end part of the sheet material at N-1 th pass, and in that a set-up calculation is executed at N-th pass based on the plasticity factor Q<SB POS="POST">AN</SB>, and using a setting based on the calculation result, rolling at N-th pass is started. Q<SB POS="POST">AN</SB>=α<SB POS="POST">N</SB>×Q<SB POS="POST">BN-1</SB>(1). In the formula,αN is a correction factor at the plasticity factor Q<SB POS="POST">AN</SB>(<SB POS="POST">αN</SB>≥1). N is an integer of 2 or larger. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
