钢精炼过程非金属夹杂物演变与控制

朱苗勇, 邓志银

Evolution and Control of Non-Metallic Inclusions in Steel During Secondary Refining Process

ZHU Miaoyong, DENG Zhiyin

图2 转炉初炼钢和铝镇静钢中典型夹杂物形貌^[23]

Fig.2 SEM images of typical inclusions in BOF crude steel (a-c) and Al-killed steel (d-h)^[23]
(a) CaO-SiO₂-FeO inclusion (b) CaO-SiO₂-FeO + (Mg, Fe, Mn)O dual-phase inclusion
(c) (Fe, Mn)O inclusion (d) Al₂O₃ inclusion clusters
(e) singular Al₂O₃ inclusion (f) MgO·Al₂O₃ inclusion
(g) CaO-Al₂O₃(-MgO) inclusion (h) CaO-Al₂O₃(-MgO) + MgO·Al₂O₃ dual-phase inclusion