基本信息:
- 专利标题： 질화 처리용 강판 및 그의 제조 방법
- 专利标题（英）：Steel sheet for nitriding and production method therefor
- 专利标题（中）：用于其硝化和生产方法的钢板
- 申请号：KR1020157027610 申请日：2014-03-20
- 公开(公告)号：KR1020150126661A 公开(公告)日：2015-11-12
- 发明人： 고바야시타카시 , 사이토하야토 , 후나카와요시마사
- 申请人： 제이에프이 스틸 가부시키가이샤
- 申请人地址： *-*-* 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： *-*-* UCHISAIWAICHO, CHIYODA-KU, TOKYO, JAPAN
- 代理人： 이철
- 优先权： JPJP-P-2013-076824 2013-04-02
- 国际申请： PCT/JP2014/001603 2014-03-20
- 国际公布： WO2014162677 2014-10-09
- 主分类号： C22C38/38
- IPC分类号： C22C38/38 ; C22C38/06 ; C22C38/04 ; C22C38/02 ; C22C38/00 ; C21D8/02
It provides formability and stamping workability is excellent for nitriding the steel sheet. In mass%, C: 0.02% or more 0.08% or less, Si: 0.1% or less, Mn: more than 0.2%, 1.8% or less, P: 0.05% or less, S: 0.02% or less, Al: 0.01% or more 0.06% or less, Cr : 0.5% or more than 1.5%, N: containing less than 0.01%, and, and a composition comprising the balance of Fe and unavoidable impurities, and the main phase a ferrite (main phase) of pearlite and / or bainite in the second phase and the ferrite fraction in the entire tissue is 70% or more, the average crystal grain size of the ferrite (average grain diameter) is less than 5㎛ 25㎛, in the second phase of the steel sheet rolling direction cross-section cementite present in the mean major length (average length of major axis) and in the steel sheet for nitridation process having less 3.0㎛ tissue.
公开/授权文献:
- KR101733513B1 질화 처리용 강판 및 그의 제조 방법 公开/授权日：2017-05-08
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 |
| --------C22C38/18 | .含铬的 |
| ----------C22C38/38 | ..含大于1.5（重量）的锰 |