An Analysis on Micro-Inclusion in Bearing Steel at Each Procedure of BOF-LF-VD-CC Flow Sheet

Special Steel ›› 2007, Vol. 28 ›› Issue (5): 16-18.

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An Analysis on Micro-Inclusion in Bearing Steel at Each Procedure of BOF-LF-VD-CC Flow Sheet

Du Shan¹ , Yan Shaowei² , Wang Shuoming² , Liu Xianmin³

1. College of Computer and Automation,Hebei Polytechnic University,Tangshan 063009;
2. College of Metallurgy and Energy,Hebei Polytechnic University,Tangshan 063009;
3. Shijiazhuang lron and Steel Corp Ltd,Shijiazhuang 050031;

Received:2007-03-20 Online:2007-10-01 Published:2023-02-13

转炉-LF-VD-CC流程轴承钢显微夹杂物的分析

杜珊¹，闫绍维²，王硕明²，刘宪民³

1. 河北理工大学计算机与自动控制学院，唐山 063009;
2. 河北理工大学冶金与能源学院，唐山 063009;
3. 石家庄钢铁有限责任公司，石家庄 050031;

作者简介:杜珊(1968-)，女，讲师，1997年毕业于北京科技大学，人工智能、计算机图形学的教学及计算机应用研究。
基金资助:
本研究得到国家科技部重点推广项目基金资助(项目编号：2004EC000059);河北省自然科学基金资助项目(编号：502263)

Abstract

Abstract: The behavior,characteristics,amount and transformation of microinclusion in bearing steel at each procedure of 45t BOF-LF-VD-CC flow sheet at Shijiazhuang Steel have been studied by added tracer elements.Results showed that inclusions in steel before LF refining were gradually transformed from blocky Al₂O³,chromic-silicate and chromic-manganate to calcium chromate,globular chromic-silicate and banding chromic-manganate inclusions in cast billet; and the average number of micro-inclusions in steel decreased from 8.74/mm² before LF to 2.72/mm² in billet while the size of inclusions also decreased.

Key words: BOF-LF-VD-CC Process, Bearing Steel, Micro Inclusion

摘要： 系统分析了石钢45 t顶底复吹转炉-LF-VD-中间包冶金过程各工序轴承钢中显微夹杂物的行为、特征、数量及变化历程。钢中的夹杂物由LF处理前的块状Al₂O₃、铬硅酸盐和铬锰酸盐逐步转变为铸坯中的铬钙酸盐、球状铬硅酸盐和条状铬锰酸盐夹杂;显微夹杂数量平均值由LF处理前8.74个/mm²减少为铸坯中2.72个/mm²,夹杂物尺寸亦减小。

关键词: 转炉流程, 轴承钢, 显微夹杂

Du Shan , Yan Shaowei , Wang Shuoming , Liu Xianmin. An Analysis on Micro-Inclusion in Bearing Steel at Each Procedure of BOF-LF-VD-CC Flow Sheet[J]. Special Steel, 2007, 28(5): 16-18.

杜珊, 闫绍维, 王硕明, 刘宪民. 转炉-LF-VD-CC流程轴承钢显微夹杂物的分析[J]. 特殊钢, 2007, 28(5): 16-18.

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An Analysis on Micro-Inclusion in Bearing Steel at Each Procedure of BOF-LF-VD-CC Flow Sheet

转炉-LF-VD-CC流程轴承钢显微夹杂物的分析

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