公开(公告)号：US20170292176A1

公开(公告)日：2017-10-12

申请号：US15518190

申请日：2015-10-08

申请人： JFE STEEL CORPORATION

发明人： Masami TSUJIMOTO ,  Takumi TANAKA ,  Tomonari HIRAGUCHI ,  Katsumi KOJIMA ,  Makoto ARATANI ,  Reiko SUGIHARA ,  Fumio AOKI ,  Toshihiro KIKUCHI ,  Hiroki NAKAMARU

IPC分类号： C22C38/06 ,  C21D6/00 ,  C22C38/04 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02

摘要： A steel sheet for a crown cap having sufficient strength and formability suitable for forming crown caps even when reduced in gauge, and a method for producing the steel sheet for a crown cap. The steel sheet for a crown cap having a composition that includes, in terms of % by mass: C: 0.002% or more and 0.010% or less, Si: 0.05% or less, Mn: 0.05% or more and 0.30% or less, P: 0.030% or less, S: 0.020% or less, Al: less than 0.0100%, N: 0.0050% or less, and the balance being Fe and unavoidable impurities. The C content is more than 0.003% when the Al content is 0.005% or more. The yield strength in the rolling direction is 500 MPa or more. The average Lankford value is 1.3 or more.

公开(公告)号：US20140174609A1

公开(公告)日：2014-06-26

申请号：US14195598

申请日：2014-03-03

申请人： JFE Steel Corporation

发明人： Makoto ARATANI ,  Toshikatsu KATO ,  Katsuhito KAWAMURA ,  Takumi TANAKA ,  Katsumi KOJIMA ,  Kaku SATO ,  Shigeko SUJITA ,  Masaki KOIZUMI

IPC分类号： C21D8/02 ,  B21B1/26 ,  C22C38/02 ,  C22C38/00 ,  C22C38/06 ,  C22C38/04

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。