脱氧工艺对硅钢连铸坯非金属夹杂物的影响研究  

Research of Effect of Deoxidation Process on Nonmetallic Inclusions in Silicon Steel Slabs

作　　者：杨亮[1] 栗红[1] 常桂华[1] 陈本文[1] 王向辉[2] 

机构地区：[1]鞍钢股份有限公司技术中心,辽宁鞍山114001 [2]鞍钢股份有限公司第二炼钢厂,辽宁鞍山114001

出　　处：《钢铁》2008年第7期101-104,共4页Iron and Steel

摘　　要：研究了Al+FeSi以及FeSi两种不同脱氧工艺对硅钢铸坯中非金属夹杂物的影响。通过合理的试验设计并运用T[O]含量测定、金相分析、SEM及EDS等研究手段,对铸坯中的夹杂物进行了分析,研究表明Al+FeSi复合脱氧不仅比FeSi脱氧具有更强的脱氧能力,且能使铸坯中的夹杂物在尺寸和数量上有明显降低,夹杂物的特征也由Si-O-Al-Mn-Ti-Fe系变性为以尺寸<5μm的Al2O3夹杂为核心、包覆Al-Si-S-Mn-Ca-Ti-Fe-O系的复合夹杂。The effect of deoxidation processes （by Al＋FeSi and FeSi） on non-metallic inclusions in silicon steel slabs was investigated. Through reasonable experimental designing and method, including [O] measurement, metallography, SEM and EDS it was shown that the deoxidation capacity of Al＋FeSi, compared with that of FeSi was stronger. Furthermore, the Al＋FeSi process could decrease the content and size of non-metallic inclusions remarkably, and the Si-O-Al-Mn-Ti-Fe inclusions were modified into compound inclusions with Al2 O3 less than 5μm in size as the core.

关 键 词：脱氧 硅钢 铸坯 非金属夹杂物 

分 类 号：TF777[冶金工程—钢铁冶金]