发明名称 METHOD AND EQUIPMENT OF COLD-ROLLING STEEL SHEET HAVING IMPROVED ROLLING STABILITY WHEN TEMPER-ROLLED AND COLD-ROLLED STEEL SHEET FOR USE IN THE SAME METHOD
摘要 PROBLEM TO BE SOLVED: To provide a rolling method and the like by which plated steel sheets for cans, of materials different in hardness, elongation, tensile strength or the like can be manufactured for each material and also steel sheets having various surface states can be manufactured for each surface state by making the temper rolling at wide rolling rate possible by eliminating the problem of jumping in wet temper rolling. SOLUTION: When performing the wet temper rolling after tandem cold rolling or reverse cold rolling of the steel sheet, rolling rolls on the surface of which many minute hollows having a diameter of 60-250μm, a depth of 2-250μm and a height of swollen part around the hollow of≤5μm are formed at the pitch of 80-1,500μm are used for rolling in the final cold rolling, thereby the rolling stability of the steel sheet when subjected to the wet temper rolling after the cold rolling is improved. COPYRIGHT: (C)2009,JPO&INPIT
申请公布号 JP2008254061(A) 申请公布日期 2008.10.23
申请号 JP20070101761 申请日期 2007.04.09
申请人 NIPPON STEEL CORP 发明人 ENOMOTO AKIHIRO;FUNAKATA HIDEJI;SHIRAISHI TAKESHI
分类号 B21B1/22;B21B1/32;B21B27/02 主分类号 B21B1/22
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