基本信息:
- 专利标题： 국부 변형능이 우수한 고강도 냉연 강판과 그 제조 방법
- 专利标题（英）：High-strength cold-rolled steel sheet with excellent local formability, and manufacturing method therefor
- 专利标题（中）：局部挠曲优异的高强度冷轧钢板及其制造方法
- 申请号：KR1020137026570 申请日：2012-04-12
- 公开(公告)号：KR1020130126739A 公开(公告)日：2013-11-20
- 发明人： 스와요시히로 , 나카노가즈아키 , 하야시구니오 , 오카모토리키 , 후지타노부히로 , 사노고히치
- 申请人： 신닛테츠스미킨 카부시키카이샤
- 申请人地址： *-*, Marunouchi *-chome, Chiyoda-ku, Tokyo, Japan
- 专利权人： 신닛테츠스미킨 카부시키카이샤
- 当前专利权人： 신닛테츠스미킨 카부시키카이샤
- 当前专利权人地址： *-*, Marunouchi *-chome, Chiyoda-ku, Tokyo, Japan
- 代理人： 장수길; 성재동
- 优先权： JPJP-P-2011-089250 2011-04-13
- 国际申请： PCT/JP2012/060065 2012-04-12
- 国际公布： WO2012141263 2012-10-18
- 主分类号： C22C38/00
- IPC分类号： C22C38/00 ; C21D9/46 ; C22C38/06 ; C22C38/58
In mass% C: 0.02% or more than 0.20%, Si: 0.001% to 2.5% or less, Mn: not more than 0.01% or 4.0%, P: 0.001% or 0.15% or less, S: 0.0005% or 0.03% or less, Al: 0.001% or more than 2.0%, N: 0.0005% or 0.01% or less, O: 0.0005% or more, and containing less than 0.01%, Si + Al: being limited to less than 1.0%, is composed of a balance of iron and inevitable impurities, the area ratio of bainite of 95% or more in the metallographic structure and, in the 5/8 to 3/8 of the plate thickness from the surface of the steel plate thickness range of the center {100} <011> to {223} <110> National Guard pole or less the average value of the densities of 4.0, and also {332} <113> and the pole density of the crystal orientation of less than 5.0, or less of a volume average diameter of the crystal grains of the metal structure 7㎛, local deformability is excellent in high strength cold rolled steel sheet It relates.
公开/授权文献:
- KR101536847B1 국부 변형능이 우수한 고강도 냉연 강판과 그 제조 방법 公开/授权日：2015-07-14
信息查询:
EspacenetIPC结构图谱:
| C | 化学；冶金 |
| --C22 | 冶金（铁的冶金入C21）；黑色或有色金属合金；合金或有色金属的处理 |
| ----C22C | 合金 |
| ------C22C38/00 | 铁基合金，例如合金钢 |