Practice of GCr15 Bearing Steel Production by 50 t EBT  EAF-LF(VD)-  CC  Process

李法兴; 兰新哲; 宋永辉; 胡蒙均; 孙永喜

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Practice of GCr15 Bearing Steel Production by 50 t EBT EAF-LF(VD)- CC Process

更新时间：2026-01-21

- Practice of GCr15 Bearing Steel Production by 50 t EBT EAF-LF(VD)- CC Process
- Special Steel Vol. 27, Issue 3, Pages: 57-58(2006)
- 作者机构：
  
  1. 西安建筑科技大学,西安,710055
  2. 莱芜钢铁股份有限公司,莱芜,271105
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：16 January 2006，
  
  Online First：13 March 2023，
  
  Published：13 March 2006
- 稿件说明：
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李法兴, 兰新哲, 宋永辉, et al. Practice of GCr15 Bearing Steel Production by 50 t EBT EAF-LF(VD)- CC Process[J]. Special Steel, 2006, 27(3): 57-58.
DOI：

李法兴, 兰新哲, 宋永辉, et al. Practice of GCr15 Bearing Steel Production by 50 t EBT EAF-LF(VD)- CC Process[J]. Special Steel, 2006, 27(3): 57-58. DOI：

摘要

莱钢采用EAF全程泡沫渣埋弧操作

EBT出钢合金化

LF 2次精炼渣碱度4.0~5.0

精炼渣的主要成分(%)为:45~50CaO

9~13SiO

9~13Al

7~8MgO

SiC扩散脱氧和40~60 L/min流量氩气搅拌

VD处理时间≥15 min

连铸全程保护浇铸生产GCr15轴承钢。GCr15轴承钢中的平均氧含量为7.9×10

-6

最高氧含量为10×10

-6

。

Abstract

The CCr15 bearing steel is produced at Laiwu Steel by using foaming slag submerged are operation in whole period of EAF steelmaking

EBT tapping alloying

LF secondary refining slag basicity being 4.0～5.0

main composition of refining slag-45～50CaO

9~13SiO₂

9～13Al₂O₃

7~8MgO

diffusion-deoxidizing by SiC and Ar stiring with flow rate 40~60 L/min

VD treatment time ≥15 min

and casting with shielding practice in whole period. The average oxygen content in GCr15 bearing steel is 7.9×10

-6

and the maximum oxygen content is 10×10

-6

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