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Effect of Calcium Treatment on Non-Metallic Inclusions in Ultra-Low Oxygen Steel Refined by High Basicity High Al2O3 Slag

YANG Jun , WANG Xin-hua , JIANG Min , WANG Wan-jun

钢铁研究学报(英文版)

The influence of calcium treatment on non-metallic inclusions had been studied when control technology of refining top slag in ladle furnace was used in ultra-low oxygen steelmaking. A sufficient amount aluminium was added to experimental heats for final deoxidizing during BOF tapping, and the refin...

关键词: ultra-low oxygen , top slag , deoxidization , aluminium , oxide inclusion , calcium treatment

超低氧冶炼过程镁铝尖晶石形成的热力学分析与控制

杨俊,王新华

钢铁

对超低氧试验钢精炼过程中镁铝尖晶石的形成机制和生成热力学计算分析表明:1873K时,MgO-Al2O3二元系夹杂物中MgO的质量分数超过17%时就能生成镁铝尖晶石;采用高碱度、w((CaO))/w((Al2O3))≈1、强还原性精炼顶渣对铝终脱氧钢液进行LF精炼时,在LF精炼中前期就实现Al2O3向...

关键词: 超低氧 , aluminium deoxidation , magnesia-alumina spinel , Al-Mg-O