脉冲电场对Fe-C-i(Si,Mn)合金与CaO-Al2O3-MgO熔渣间反应的影响

炼钢 ›› 2014, Vol. 30 ›› Issue (6): 67-70.

脉冲电场对Fe-C-i(Si,Mn)合金与CaO-Al2O3-MgO熔渣间反应的影响

(安徽工业大学冶金工程学院，安徽马鞍山 243002)

接受日期:1900-01-01 出版日期:2014-12-05

Effect of pulsed electric field on reaction between Fe-C-i(Si, Mn) and CaO-Al2O3-MgO

Accepted:1900-01-01 Online:2014-12-05

摘要/Abstract

摘要： 研究了脉冲电场对Fe-C-i(Si,Mn)系合金与CaO-Al2O3-MgO系熔渣间反应的影响。在渣-金熔体间施加2 V脉冲电场，分别作用30，60 s后，渣中硅与锰质量分数随作用时间延长而逐渐增加，分别由0.31 %和0.02 %增加到0.63 %和0.049 %；金属基体的上表面和下表面硅质量分数之差与锰质量分数之差逐步减小，分别由0.06 %和0.32 %降至0.01 %和0.022 %；金属基体中硅和锰的夹杂物尺寸有不同程度的降低，其中硅的夹杂物尺寸减小最明显，由45 μm左右降至5 μm左右。

关键词: 脉冲电场, 渣金反应, Fe-C-i(Si, Mn)合金, 元素迁移

Abstract: This paper studies the effect of pulsed electric field on slagmetal reactions between Fe-C-i(Si, Mn) alloy and CaO-Al2O3-MgO slag. After applying 2 V pulsed electric field to slag-metal system for 30 s and 60 s respectively, the content of Si and Mn in slag grows with time increasing. The Si mass fraction in slag increases from 0.31 % to 0.63 % and that of Mn mass fraction from 0.02 % to 0.049 % respectively. The difference of the content of Si and Mn in metallic matrix between the upper surface and lower surface decreases gradually, that is w(Si) in metal decreases from 0.06 % to 0.01 % and w(Mn) from 0.32 % to 0.022 % respectively. The sizes of inclusions containing SiO2 or MnO in metallic matrix decease, and the most obvious is SiO2 inclusions, namely the size decreases from 45 μm to 5 μm in average diameters.

Key words: pulsed electric field, slagmetal reaction, Fe-C-i(Si, Mn) alloy, element migration

王海川，张雷，陈克全，尹振兴，李杰，廖直友，周云. 脉冲电场对Fe-C-i(Si,Mn)合金与CaO-Al2O3-MgO熔渣间反应的影响[J]. 炼钢, 2014, 30(6): 67-70.