摘要
介绍了CO_(2)在AOD炉中脱碳保锰热力学的研究。通过Factsage软件计算可知,在AOD脱碳期间,每50 Nm^(3)的O_(2)被100 Nm^(3)的CO_(2)替换脱碳,所带来70 t钢液理论温降为9.4℃。通过热力学研究发现,在脱碳中期,即w(C)≤0.5%后,就需要通过混合喷吹N2或Ar降低CO分压以便达到脱碳目的。
The mechanism of decarbonization and hold manganese is researched by blowing CO_(2) in AOD from thermodynamicsin the paper.According to the calculation of Factsage software,every 50 Nm^(3) of O_(2) is replaced by 100 Nm^(3) of CO_(2) during the decarbonization in AOD,which brings a theoretical temperature drop of 9.4℃for 70 t molten steel.Through thermodynamic research,it is found that in the middle stage of decarbonization,that is,when w(C)≤0.5%,it is necessary to reduce CO partial pressure by mixed blowing N2 or Ar in order to achieve decarbonization.
作者
谢明耀
徐浩
董贤帮
刘建华
XIE Mingyao;XU Hao;DONG Xianbang;LIU Jianhua(Guangxi Beibu Gulf New Materials Co.,Ltd.,Beihai 576000,China;School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China)
出处
《铁合金》
2021年第3期16-18,共3页
Ferro-alloys
关键词
脱碳保锰
二氧化碳
热力学
AOD
不锈钢
decarbonization and hold manganese
CO_(2)
thermodynamics
AOD
stainless steel
