基本信息:
- 专利标题： 用于细化TiC颗粒增强型耐磨钢中TiC的方法
- 专利标题（英）：Method for refining TiC in TiC particle reinforced type wear-resistant steels
- 申请号：CN201510921071.X 申请日：2015-12-11
- 公开(公告)号：CN105478702A 公开(公告)日：2016-04-13
- 发明人： 梁小凯 , 穆润青 , 孙新军 , 李昭东 , 雍岐龙 , 贾书君 , 刘清友 , 康韶光 , 朱秀光 , 高助忠 , 吴建鹏 , 李经涛 , 刘俊 , 陈玉辉 , 徐国庆 , 韩全君 , 潘贵明
- 申请人： 钢铁研究总院 , 中煤张家口煤矿机械有限责任公司 , 江阴兴澄特种钢铁有限公司
- 申请人地址： 北京市海淀区学院南路76号
- 专利权人： 钢铁研究总院,中煤张家口煤矿机械有限责任公司,江阴兴澄特种钢铁有限公司
- 当前专利权人： 钢铁研究总院,中煤张家口煤矿机械有限责任公司,江阴兴澄特种钢铁有限公司
- 当前专利权人地址： 北京市海淀区学院南路76号
- 代理机构： 北京华谊知识产权代理有限公司
- 代理人： 刘月娥
- 主分类号： B22D11/22
- IPC分类号： B22D11/22 ; B22D11/12
The invention provides a method for refining TiC in TiC particle reinforced type wear-resistant steels, and belongs to the technical field of alloy steels. A continuous casting process is adopted. Process parameters are as follows: a casting temperature is equal to the sum of a liquidus temperature and (20-40 DEG C); and heat-flux density of a slab crystallizer is 0.8-2.5 MW/m(2), a secondary cooling specific water rate of the slab crystallizer is 0.3-0.8 L/kg, and a straightening point temperature of the slab crystallizer is greater than 950 DEG C. By the method, sizes of carbide particles can be refined and uniformized effectively, and the ductility and toughness of the material are improved greatly. Compared with a die casting process, the method has the features that the average size of the TiC in steel plates can be refined to be 1 mu m from 5 mu m, ductility of the steel plate is improved to be 11% from 7%, and room temperature impact energy is increased to be 20 J from 12 J; and according to the cold bending property, the diameter of a bent core is 6a, and a bent angle of a qualified piece is 90 degrees.
IPC结构图谱:
| B | 作业；运输 |
| --B22 | 铸造；粉末冶金 |
| ----B22D | 金属铸造；用相同工艺或设备的其他物质的铸造 |
| ------B22D11/00 | 金属连续铸造，即长度不限的铸造 |
| --------B22D11/16 | .操作或运行的控制或调节 |
| ----------B22D11/22 | ..用于冷却铸造坯料或铸型的 |