无取向电工钢中酸溶铝含量对夹杂物的影响  

Effect of Acid Soluble Aluminium on Inclusions in Non-Oriented Electrical Steel

作　　者：夏文勇[1] 刘静静[1,2] 秦哲[1] 侯泽旺[1] 仇圣桃[1] 王建军[2] 

机构地区：[1]钢铁研究总院,北京100081 [2]安徽工业大学冶金与资源学院,安徽马鞍山243002

出　　处：《钢铁》2012年第9期35-39,共5页Iron and Steel

摘　　要：为提高无取向电工钢成品性能及优化生产,采用SEM-EDS等分析方法分别对比分析了无取向电工钢生产时,不同酸溶铝含量的生产工艺对钢中夹杂物的影响。研究表明,当钢中酸溶铝含量w(Als)为0.2%～0.4%时,精炼过程所生成的夹杂物为高熔点的Al2O3和球状的MgO-Al2O3类夹杂物;当钢中w(Als)小于0.005%时,精炼过程所生成的夹杂物主要为塑性硅铝锰酸盐类夹杂;各工位夹杂物平均数量呈递减的趋势,且w(Als)为0.2%～0.4%的高碱度渣系控制生成的夹杂物总量低于后者。In order to improve the properties of non-oriented electrical steel and optimize the production,the effect of different content of acid soluble aluminium on inclusions in non-oriented electrical steel was investigated by the method of SEM-EDS.The results show that when acid-soluble aluminium content in steel is 0.2%-0.4%,inclusions in the refining stage are Al2O3 with high melting point and globular MgO-Al2O3.While acid-soluble aluminium content in steel less than 0.005%,inclusions in the refining stage are Si-Al mixed manganese salts.The average size distribution of inclusion in each station is followed by a decreasing trend.

关 键 词：无取向电工钢 酸溶铝 炉渣 夹杂物 

分 类 号：TG142.4[一般工业技术—材料科学与工程]