Effects of RE on precipitation behaviors of the inclusions and magnetic properties of non-oriented electrical steel
作者单位：The State KeyLaboratory of Refractories and Metallurgy Key Laboratory of Ferrous Metallurgy and Resources UtilizationMinistry of EducationWuhan University of Science and Technology Silicon Steel Department Baoshan Iron & steel Co.Ltd.
会议名称：《2014中国功能材料科技与产业高层论坛》
会议日期：2014年
学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程]
关 键 词：Non-oriented electrical steel RE treatment non-metallic inclusions microstructure magnetic properties
摘 要：Effects of RE addition on deoxidation and desulphurization efficiency,precipitation behaviors of the inclusions,microstructure and magnetic properties of the finished sheets have been investigated for nooriented electrical steel produced in industrial *** most suitable addition amount of RE alloy added in the electrical steel bearing is proposedfor excellentdeoxidation and desulphurization *** added into the steel can form larger and high melt point RE oxides,RE sulfides and RE oxysulfides inclusions removing from the bath by floating which decreases the numbers and increases the size of the fine *** average size of the inclusions remained in the steel is 0.8μm.4μ*** content affects grain size by influencing number and size of fine inclusions in the finished steel *** magnetic flux density of the finished steel sheets dereases with the increase of RE content while the lowest core loss of it has an optimum RE content in the *** the steel bearing 1.15wt%Si,the content of RE should be strictly controlled in the range from 20×10wt%to60×10wt%.