基本信息:
- 专利标题： 一种铌镧微合金化Si-Mn系热成形钢板及其热处理工艺
- 专利标题（英）：Niobium-lanthanum microalloyed Si-Mn thermoformed steel plate and heat threatment technique thereof
- 申请号：CN201210307576.3 申请日：2012-08-27
- 公开(公告)号：CN102796953A 公开(公告)日：2012-11-28
- 发明人： 高志国 , 史文义 , 刘莉 , 李培德 , 程德富
- 申请人： 内蒙古包钢钢联股份有限公司
- 申请人地址： 内蒙古自治区包头市昆区河西工业区
- 专利权人： 内蒙古包钢钢联股份有限公司
- 当前专利权人： 内蒙古包钢钢联股份有限公司
- 当前专利权人地址： 内蒙古自治区包头市昆区河西工业区
- 代理机构： 北京世誉鑫诚专利代理事务所
- 代理人： 郭官厚
- 主分类号： C22C38/12
- IPC分类号： C22C38/12 ; C21D1/18 ; C21D8/02
The invention discloses a niobium-lanthanum microalloyed Si-Mn thermoformed steel plate and a heat treatment technique thereof, belonging to the technical field of metallurgy and relating to a forming technology. The invention is characterized in that the plate blank comprises the following chemical components in percentage by weight: 0.16-0.35% of C, 0.6-1.6% of Si, 1.5-2.0% of Mn, at most 0.015% of P, at most 0.005% of S, 0.01-0.06% of Nb, 0.001-0.3% of La, and the balance of Fe and inevitable impurities. The heat treatment technique comprises the following steps: after keeping the austenitizing temperature of 890-940 DEG C for 0.5-3 hours, quenching with water; and keeping the tempering temperature of 190-300 DEG C for 3-10 hours. The finished steel plate is 5-30mm, and has favorable mechanical properties: the tensile strength is up to 1450-1700 MPa, the yield strength is 1150-1300 MPa, and the elongation percentage is 8-15%.
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 |
| --------C22C38/12 | .含钨、钽、钼、钒或铌的 |