摘要
结合电炉实际生产情况,初步分析了轴承钢保碳操作过程控制,在铁水消耗700 kg/t(钢),铁水磷质量分数小于0.130%条件下,分析了脱磷的热力学与动力学影响因素,利用冶炼前、中期低温的有利条件高效脱磷,后期控制用氧,实现冶炼终点碳质量分数在0.20%-0.70%之间,磷质量分数≤0.015%。
In combination with the practical production situation of EAF,the control process of carbon retaining operation of bearing steel is preliminary analyzed.With the precondition that the hot metal consumption of 700 kg/t(steel),phosphorus mass fraction in hot metal is less than 0.130%,both the thermodynamic and kinetic conditions during dephosphorization is analyzed.With high efficiency dephosphorization during the preliminary and medium progress of smelting due to favorable condition of low temperature,and controlled oxygen input,the carbon mass fraction of liquid steel at the end is between 0.20%and 0.70%,the phosphorus mass fraction is 0.015%or less.
作者
袁金甲
YUAN Jinjia(Steel-making Plant 3#)
出处
《南钢科技与管理》
2019年第4期14-17,共4页
NISCO Technology and Management
关键词
GCR15轴承钢
电炉炼钢
保碳操作
脱磷
GCr15
EAF Steel-making
Carbon Retaining Operation
Dephosphorization
