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公开(公告)号:US20140174609A1
公开(公告)日:2014-06-26
申请号:US14195598
申请日:2014-03-03
发明人: Makoto ARATANI , Toshikatsu KATO , Katsuhito KAWAMURA , Takumi TANAKA , Katsumi KOJIMA , Kaku SATO , Shigeko SUJITA , Masaki KOIZUMI
CPC分类号: C21D8/0263 , B21B1/26 , C21D8/0426 , C21D8/0436 , C21D8/0442 , C21D8/0473 , C21D2211/004 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06
摘要: A method for manufacturing a high-strength steel sheet for a can, including (a) hot rolling a steel slab at a slab extraction temperature of 1200° C. or more and a finish rolling temperature of (Ar3 transformation temperature−30)° C. or more, the steel slab containing, on the basis of mass percent, more than 0.02%, but 0.10% or less of C, 0.10% or less of Si, 1.5% or less of Mn, 0.20% or less of P, 0.20% or less of S, 0.10% or less of Al, 0.0120% to 0.0250% of N, and the balance being Fe and incidental impurities; (b) coiling at a temperature of 650° C. or less; (c) pickling; (d) carrying out a first cold rolling; (e) continuously annealing; and (f) carrying out a second cold rolling at a reduction ratio of 10% or more and less than 20%.
摘要翻译: 一种罐用高强度钢板的制造方法,其特征在于,包括(a)在1200℃以上的板坯提取温度和(Ar 3相变温度-30℃)的精轧温度下对钢坯进行热轧 以上,以质量%计含有C:0.02%以上0.10%以下的Si,0.10%以下的Si,1.5%以下的Mn,0.20%以下的P, S:0.20%以下,Al:0.10%以下,N:0.0120%〜0.0250%,余量为Fe和杂质; (b)在650℃或更低的温度下卷取; (c)酸洗; (d)进行第一次冷轧; (e)连续退火; 和(f)以10%以上且小于20%的压下率进行第二次冷轧。