无取向电工钢深脱硫试验

廖建军; 秦哲; 仇圣桃; 赖朝彬

doi:10.7513/j.issn.1004-7638.2013.06.012

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无取向电工钢深脱硫试验

doi: 10.7513/j.issn.1004-7638.2013.06.012

1. 江西理工大学冶金与化学工程学院, 江西赣州 341000;
2. 中国钢研科技集团连铸技术国家工程研究中心, 北京 100081

详细信息

作者简介:
廖建军(1987-),男,江西新余人,在读硕士,主要从事洁净钢研究。

中图分类号: TF764
计量
- 文章访问数: 196
- HTML全文浏览量: 60
- PDF下载量: 3
- 被引次数: 0
出版历程
- 收稿日期: 2013-03-27
- 网络出版日期: 2023-12-04

Experiment Research on Deep Desulphurization of Non-oriented Electrical Steel

1. Faculty of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China;
2. National Engineering and Research Center of Continuous Casting Technology, CISRI, Beijing 100081, China

摘要

摘要: 为满足用户对无取向电工钢中硫含量的要求，采用CaO-CaF₂复合渣系为脱硫剂，利用RH投入法对无取向电工钢进行深脱硫试验。试验结果表明，RH精炼渣成分控制在w _CaO43%~51%、w _Al₂O₃25%~31%、w _MgO4%~6%、w _SiO₂9%~12%、w _{（FeO+MnO）} 3%~6%，在脱硫剂加入量为6~8 kg/t时，钢中平均硫含量从32×10^-6降低到18×10^-6，RH平均脱硫率为43.3%，最高达47.1%。利用KTH模型计算精炼终渣平均硫容量为0.003 1，RH精炼结束时渣-钢间实际平均硫分配比从14增加到52。
- 无取向电工钢 /
- RH /
- 深脱硫 /
- 精炼渣 /
- 硫容量 /
- 硫分配比
Abstract: In order to satisfy the requirements of consumers on sulfur content in non-oriented electrical steel,taking(CaO-CaF 2) based flux as desulfurizer,industrial experiments on deep desulphurization of non-oriented electrical steel were carried out during RH process. The results show that as the compositions of refining slag are appropriately controlled with w_CaO of 43%~51%,w_Al₂O₃ of 25%~31%,w_MgO of 4%~6%,w_SiO₂ of 9%~12%,and w_{(FeO + MnO)} of 3%~6%,and the desulfurizer added are at 6~8 kg/t,the average sulfur content in liquid steel can be reduced from 32 × 10^-6 to 18 × 10^-6 with the average and highest desulphurization degrees of 43.3% and 47.1% respectively. Calculated with KTH model,the average sulfide capacity in final slag is 0.0031,and the average equilibrium distribution ratio of sulphur in the final slag increases from 14 to 52 at the end of refining in RH.
- non-oriented electrical steel /
- RH /
- deep desulfurization /
- refining slag /
- sulfide capacity /
- sulfur distribution