摘要
采用差热分析仪及高温电阻炉,测定了不同碱度低碳钢保护渣的熔化温度,分析了加热温度、加热时间对高碱度熔渣流动性能的影响。结果表明,碱度1.0~1.2、加热温度1140~1220℃下,随加热时间的延长,保护渣的流动长度增加,而流动速度呈下降趋势;R=1.10时保护渣的流动性最好。将碱度由0.77提升至1.10时,低碳钢矩坯保护渣的润滑性能最好,并可有效防止钢水增碳。
The melting temperatures of low carbon steel mold flux with different basicity were measured by differential thermal analyzer and high temperature resistance furnace, and the effects of heating temperature and time on the fluidity of high basicity slag were analyzed. The results show that the flow length of mold flux increases with the extending of heating time while the flow rate decreases with basicity 1.0~1.2 and heating temperature below 1 140~1 220 ℃. And the fluidity is the best with R=1.10. When the basicity is increased from 0.77 to 1.10, the lubricity of low carbon steel billet is the best, and it can effectively prevent molten steel from carburizing.
作者
陈瑜
Chen Yu(Zhongye Jingcheng Engineering Technology Co.,Ltd.,Beijing,100176)
出处
《河北冶金》
2019年第6期12-16,共5页
Hebei Metallurgy
关键词
高碱度
低碳钢
保护渣
流动性
high basicity
low carbon steel
mold flux
fluidity
