摘要
为降低热作模具钢H13钢中Ti含量,减少大颗粒TiN夹杂物对其疲劳性能的不利影响,通过对H13钢冶炼过程Ti含量来源进行分析,结合热力学计算,确认了LF精炼炉处理过程炉渣中TiO_(2)被还原进入钢液,是钢液增Ti的主要原因。通过合金使用优化和炉渣中TiO_(2)来源控制,实现了中南股份H13钢低Ti稳定化控制,满足了高端热作模具H13钢对Ti含量严格控制的要求。
In order to reduce the Ti content in steel H13 and reduce the adverse influence of large particle TiN inclusions on its fatigue properties,the sources of Ti content in the smelting process of the steel were analyzed.Combined with thermodynamic calculation,it is confirmed that the reduction of TiO_(2)in the slag of LF is the main reason for the increase of Ti in the liquid steel.Through the optimization of alloy use and the control of TiO_(2)source in slag,the low Ti stabilization control of the steel at ZNIS has been realized.It meets the requirement of strict control of Ti content in high-end steel H13 for hot working dies.
作者
余大华
寻忠忠
李至荣
YU Da-hua;XUN Zhon-gzhong;LI Zhi-rong(Guangdong ZNIS Co.,Ltd.of Baowu Group Zhongnan Iron&Steel,Shaoguan,Guangdong,512123,P.R China)
出处
《南方金属》
CAS
2023年第3期9-11,25,共4页
Southern Metals
基金
广东省重点领域研发计划项目(2020B010184001)。
