超低氧弹簧钢60Si2Mn的夹杂物研究

特殊钢 ›› 2008, Vol. 29 ›› Issue (2): 47-49.

超低氧弹簧钢60Si2Mn的夹杂物研究

周红霞王郢王新华

北京科技大学冶金与生态工程学院，北京100083

出版日期:2008-04-01 发布日期:2023-01-20
作者简介:周红霞(1983-),女，北京科技大学在读硕士研究生，从事钢铁冶炼技术研究。

A Study on Inclusion in Ultra-low Oxygen Spring Steel 60Si2Mn

Zhou Hongxia,Wang Ying and Wang Xinhua

Metalurgical and Ecological Engineering School,University of Science and Technology,Beijing 100083

Published:2008-04-01 Online:2023-01-20

摘要/Abstract

摘要： 通过80 t LD-LF(VD)-CC流程，采用转炉出钢铝沉淀脱氧，出钢后加铝粉强扩散脱氧工艺所生产的 60Si2Mn弹簧钢铸坯总氧含量(T.0)为10×10^-6,[S]0.005%,[P]0.010%。分析结果表明，LF末期和VD末期钢水中的夹杂物主要为CaO(MgO)-Al₂0₃-CaS-Si0₂系；铸坯中的夹杂物主要为CaO(MgO)-Al₂0₃-CaS-SiO₂-TiN复合夹杂。因为连铸时保护浇铸不当，使[N]增加，促使铸坯含TiN夹杂。

关键词: 超低氧弹簧钢LD-LF(VD)-CC Al脱氧夹杂物

Abstract: Abstract Spring steel 60Si2Mn produced by 80 tLD-LF(VD)-CC flow sheet using aluminum killing during tap- ping and aluminum powder strong diffusion deoxidation after tapping to get total oxygen content(T.0)in billet of steel 10×10^-6,[S]0.005%,[P]0.010%。Analysis results showed that the main inclusion in steel at end phase of LF and end phase of VD was CaO(MgO)-Al₂O₃-CaS-SiO₂ series,the main inclusion in billet was CaO(MgO)-Al₂0₃-CaS-SiO₂- TiN compound inclusion. As shielding practice was unsuitable led to increasing[N] and containing TiN inclusion in billet.

Key words: Ultra-low Oxygen Spring Steel,LD-LF(VD)-CC,Al Killing,Inclusion

周红霞王郢王新华. 超低氧弹簧钢60Si2Mn的夹杂物研究[J]. 特殊钢, 2008, 29(2): 47-49.

Zhou Hongxia, Wang Ying and Wang Xinhua. A Study on Inclusion in Ultra-low Oxygen Spring Steel 60Si2Mn[J]. Special Steel, 2008, 29(2): 47-49.