【作者】 张彩军； 朱立光； 王硕明； 丁辉；

【Author】 ZHANG Cai-jun~1,Zhu Liguang~1,Wang Shuoming,Ding Hui~2 (1.College of metallurgy and Energy,Hebei polytechnic Univerty,Tangshan 063009; 2.Technical center,Shijiazhuang Iorn and Steel Co.,LTD,Hebei 050031)

【机构】 河北理工大学冶金与能源学院； 石家庄钢铁公司技术中心；

【摘要】 通过对钙处理过程中夹杂物变性的热力学分析,绘制了夹杂物变性过程中钙、铝、氧、硫活度的优势区图及夹杂物变性路径图,并系统分析了钢液温度、铝活度、硫活度等因素对夹杂物变性的影响。S48碳素结构钢钙处理后形成球形或块状的钙铝酸盐,硫化锰和内核为MgO·Al₂O₃外壳为CaO·Al₂O₃的复合夹杂。更多还原

【Abstract】 According to the thermodynamical fundamental of inclusions modification in the Calcium treatment,the relationship diagram among the activity of calcium,aluminium,oxygen,Sulphur was established,the modification path of inclusions was analyzed,the effect of temperature of steel,activity of aluminium,activity of sulphur on modification efficiency was discussed.After the modification of inclusions,the oxide inclusion was calcium aluminate,manganese sulfide and CaO·Al₂O₃·MgO complex inclusion,in which the CaO·Al₂O₃ is around the Al₂O₃·MgO nuclei.更多还原