基本信息:
- 专利标题： 심인발성이 뛰어난 고강도 강판 및 그 제조방법
- 专利标题（英）：High-strength steel sheet having excellent deep drawability and process for producing the same
- 专利标题（中）：具有优异深度可拉伸性的高强度钢板及其制造方法
- 申请号：KR1020067001268 申请日：2004-09-17
- 公开(公告)号：KR100760593B1 公开(公告)日：2007-09-20
- 发明人： 요시다히로미 , 오쿠다카네하루 , 우라베토시아키 , 호소야요시히로
- 申请人： 제이에프이 스틸 가부시키가이샤
- 申请人地址： Hibiya-kokusai building, *-*-* Uchisaiwaicho, Chiyoda-ku, Tokyo, JAPAN
- 专利权人： 제이에프이 스틸 가부시키가이샤
- 当前专利权人： 제이에프이 스틸 가부시키가이샤
- 当前专利权人地址： Hibiya-kokusai building, *-*-* Uchisaiwaicho, Chiyoda-ku, Tokyo, JAPAN
- 代理人： 특허법인원전
- 优先权： JPJP-P-2003-00335731 2003-09-26; JPJP-P-2004-00258659 2004-09-06
- 国际申请： PCT/JP2004/014039 2004-09-17
- 国际公布： WO2005003102 2005-04-07
- 主分类号： C22C38/00
- IPC分类号： C22C38/00 ; C21D9/46 ; C22C38/12
고강도 강판, 심인발성, TS, Deep Drawability, 자동차 부품
Useful in applications such as steel sheet for automobile, yet the tensile strength (TS) is 440MPa or more high intensity has a high r value (average of r values ≥1.2). It provides a high strength steel sheet excellent in deep drawability and a method of manufacturing the same. In mass%, C: 0.010~0.050%, Si: 1.0% or less, Mn: 1.0~3.0%, P: 0.005~0.1%, S: 0.01% or less, A1: 0.005~0.5%, N: 0.01% or less, Nb: contains 0.01~0.3%, and further, the content of Nb and C in the steel, to satisfy the relationship (Nb / 93) / (C / 12) = 0.2~0.7, the remainder being substantially Fe and inevitable enemy having a composition consisting of the components as well as impurity, to have the area ratio of the steel structure to include more than 50% martensite phase and ferrite phase, 1% in area ratio, characterized in that the average r value of not less than 1.2. High-strength steel, deep drawability, TS, Deep Drawability, auto parts
公开/授权文献:
- KR1020060030909A 심인발성이 뛰어난 고강도 강판 및 그 제조방법 公开/授权日：2006-04-11
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 |