基本信息:
- 专利标题： 弯曲加工性优良的超高强度冷轧钢板及其制造方法
- 专利标题（英）：Superhigh-intensity cold rolled steel plate with good bending processing performance and manufacturing method thereof
- 申请号：CN201810224462.X 申请日：2012-02-27
- 公开(公告)号：CN108456832A 公开(公告)日：2018-08-28
- 发明人： 内海幸博 , 梶原桂 , 村上俊夫 , 塚谷一郎 , 前田广幸 , 山野隆行
- 申请人： 株式会社神户制钢所
- 申请人地址： 日本兵库县
- 专利权人： 株式会社神户制钢所
- 当前专利权人： 株式会社神户制钢所
- 当前专利权人地址： 日本兵库县
- 代理机构： 中科专利商标代理有限责任公司
- 代理人： 吴克鹏
- 主分类号： C22C38/06
- IPC分类号： C22C38/06 ; C22C38/38 ; C22C38/58 ; C22C38/14 ; C22C38/12 ; C22C33/04 ; C21D8/02
The invention provides a superhigh-intensity cold rolled steel plate with high intensity being 780 MPa or higher and excellent bending processing performance. The superhigh-intensity cold rolled steelplate with good bending processing performance is characterized by being prepared from the following chemical ingredients in percentage by mass: 0.08 to 0.20 percent of C, 0.1 to 1.5 percent of Si, 1.5 to 2.5 percent of Mn, 0.02 percent or less of P, 0.002 percent or less of S, 0.02 to 0.10 percent of Al, 0.0060 percent or less of N, 0.0015 percent or less of Ca, 0.0020 percent or less of O and the balance of Fe and unavoidable impurities. The tissues consist of a ferrite phase and a low-temperature phase change generation phase; when the impurity size in the tissues is expressed by the diameter of the circles with the same area, the oxide series impurities with the diameter being 5mu m or more is 30/mm<2> or less; the tensile intensity is 780 MPa or higher.
公开/授权文献:
- CN108456832B 弯曲加工性优良的超高强度冷轧钢板及其制造方法 公开/授权日：2021-02-02
IPC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 |
| --------C22C38/06 | .含铝的 |