摘要
柳钢采用“BOF→LF→R→H→CC”工艺成功地开发了20CrMnTi齿轮钢，通过对冶炼和连铸工艺进行优化控制，提高了钢水的洁净度和可浇性，铸坯全氧含量w（T（O）≤20×10^-6，氮含量w（N）大部分控制在55×10^-6以内，成功解决了20CrMnTi小方坯连铸生产的顺行问题；完全消除了铸坯的表面凹陷。
20CrMnTi gear steel is successfully developed in Liuzhou Iron and Steel （Group） Corporation by adoption of the technological route of ＂BOF→LF→R→H→CC＂ . Through the optimization of smelting and continuous casting process, it improves castability and cleanliness of the liquid steel, and the content of T[O] and N in 20CrMnTi billet can be controlled within 22×10^-6 and 55×10^-6 respectively. Finally, the quality performance indexes of round bar all meet the standard requirement and application requirement of users.
出处
《冶金信息导刊》
2013年第2期38-41,23,共5页
Metallurgical Information Review
