基于IMCT理论的轴承钢精炼渣系碱度模型

雷家柳; 李德胜; 朱航宇

doi:10.7513/j.issn.1004-7638.2019.02.018

基于IMCT理论的轴承钢精炼渣系碱度模型

doi: 10.7513/j.issn.1004-7638.2019.02.018

1. 湖北理工学院材料科学与工程学院冶金工程系, 湖北黄石 435003;
2. 大冶特殊钢股份有限公司, 湖北黄石 435000;
3. 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室, 湖北武汉 430081

基金项目:

国家自然科学基金资助项目（51704105，51604198）；湖北省教育厅科学技术研究项目（Q20174504）。

详细信息

作者简介:
雷家柳(1987-),男,湖北咸宁人,博士,讲师,长期从事钢中夹杂物控制研究工作,E-mail:710158466@qq.com。

中图分类号: TF769
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出版历程
- 收稿日期: 2018-10-29
- 网络出版日期: 2023-12-02

Calculation Model of Optimal Basicity for the Refining Slag of Bearing Steel Based on IMCT Theory

1. School of Materials Science and Engineering, Hubei Polytechnic University Metallurgy Engineering Department, Huangshi 435003, Hubei, China;
2. Daye Special Steel Corp., Ltd., Huangshi 435000, Hubei, China;
3. Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China

摘要

摘要: 针对轴承钢精炼过程中全氧含量的控制问题，基于熔渣分子与离子共存理论（IMCT），建立了CaO-SiO₂-MgO-Al₂O₃-FeO精炼渣系在1 853 K时炉渣最适碱度的计算模型，并对该渣系最适碱度的影响因素进行了讨论分析。结果表明：①在不同的FeO含量时，N_FeO均在碱度为3左右时出现最大值，最适碱度基本不随FeO含量的变化而改变。②MgO含量对最适碱度有较大的影响。随着MgO含量的增加，最适碱度呈减小的趋势。③Al₂O₃含量对最适碱度的影响与MgO相反，随着Al₂O₃含量的增加，最适碱度明显增大。
- 轴承钢 /
- 精炼渣 /
- 共存理论 /
- 最适碱度 /
- 计算模型
Abstract: The fatigue life of bearing steel is closely related to the total oxygen content in the steel.Aimming at the control of T[O]in the bearing steel during refining process,a calculation model of optimal basicity for the refining slag CaO-SiO₂-MgO-Al₂O₃-FeO at 1 853 K is established,based on the ion and molecule coexistence theory（IMCT）.And the influence factors on optimal basicity for the slag system are discussed and analyzed.The results show that:①For different FeO content,the maximum value of N_FeO occured when the basicity are all around 3,the optimal basicity basically does not change with the variation of FeO content.②The content of MgO has a great influence on the optimal basicity,with the increase of MgO content,the optimal basicity decreased.③The effect of Al₂O₃ content on the optimal basicity is opposite to that of MgO.With the increase of Al₂O₃ content,the optimal basicity increases significantly.
- bearing steel /
- refining slag /
- coexistence theory /
- optimal basicity /
- calculation model