基本信息:
- 专利标题： 低合金高强度桥索钢连铸方坯热处理生产工艺
- 专利标题（英）：Heat treatment production technology of low-alloy and high-strength bridge cable steel continuous casting billet
- 申请号：CN201811280975.9 申请日：2018-10-30
- 公开(公告)号：CN109136773A 公开(公告)日：2019-01-04
- 发明人： 蒋跃东 , 齐江华 , 张剑君 , 陈子宏 , 张弦 , 张帆 , 鲁修宇 , 彭著钢 , 杨成威 , 朱万军 , 陈俊孚
- 申请人： 武汉钢铁有限公司
- 申请人地址： 湖北省武汉市青山区厂前2号门股份公司机关
- 专利权人： 武汉钢铁有限公司
- 当前专利权人： 武汉钢铁有限公司
- 当前专利权人地址： 湖北省武汉市青山区厂前2号门股份公司机关
- 代理机构： 武汉开元知识产权代理有限公司
- 代理人： 胡镇西; 张继巍
- 主分类号： C22C38/02
- IPC分类号： C22C38/02 ; C22C38/04 ; C22C38/24 ; C22C38/26 ; C22C38/28 ; C22C38/32 ; B22D11/22 ; C21D8/02 ; C21D1/42
The invention discloses a heat treatment production technology of a low-alloy and high-strength bridge cable steel continuous casting billet. The low-alloy and high-strength bridge cable steel continuous casting billet comprises the following components in percent by weight: 0.90-1.20% of C, 0.90-1.10% of Si, 0.60-0.90% of Mn, smaller than or equal to 0.01% of P, smaller than or equal to 0.01% ofS, 0.20-0.40% of Cr, 0.60-0.80% of Nb and V, 0.010-0.015% of Ti, 0.005-0.015% of N and 0.0005-0.0015% of B. Titanium nitride particles separated out during solidification of the continuous casting billet and acicular ferrite are used as nucleating points of new austenite during austenitization based on electromagnetic induction coil heating, and the austenite is thinned under the austenite boundary pinning action of the particles, so that coarse columnar crystalline structures in the continuous casting billet are reduced or eliminated, thinned structures are provided for production in the later process, and the structures and the performance of a final product can be further improved.
公开/授权文献:
- CN109136773B 低合金高强度桥索钢连铸方坯热处理生产工艺 公开/授权日：2019-12-31
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 |
| --------C22C38/02 | .含硅的 |