Controlling Technology on Oxygen Content in Gear Steel Produced by 120 t LD-LF-RH-BCC Flow Sheet

陈天明; 杨素波; 赵克文; 王新华; 曾建华

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Controlling Technology on Oxygen Content in Gear Steel Produced by 120 t LD-LF-RH-BCC Flow Sheet

更新时间：2026-01-21

- Controlling Technology on Oxygen Content in Gear Steel Produced by 120 t LD-LF-RH-BCC Flow Sheet
- Special Steel Vol. 31, Issue 1, Pages: 24-27(2010)
- 作者机构：
  
  1. 攀枝花钢铁集团公司,攀枝花,617000
  2. 北京科技大学冶金与生态工程学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：30 July 2009，
  
  Online First：25 October 2022，
  
  Published：25 October 2010
- 稿件说明：
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陈天明, 杨素波, 赵克文, et al. Controlling Technology on Oxygen Content in Gear Steel Produced by 120 t LD-LF-RH-BCC Flow Sheet[J]. Special Steel, 2010, 31(1): 24-27.
DOI：

陈天明, 杨素波, 赵克文, et al. Controlling Technology on Oxygen Content in Gear Steel Produced by 120 t LD-LF-RH-BCC Flow Sheet[J]. Special Steel, 2010, 31(1): 24-27. DOI：

摘要

分析了齿轮钢中氧含量控制的关键技术:精炼渣SiO

含量

(CaO)/(Al

)

(FeO+MnO)

氩气搅拌

连铸工艺。结合攀枝花新钢钒股份有限公司炼钢厂的工艺条件

通过控制转炉终点[C

]

≥0.10%

钢包渣厚50～80 mm

出钢过程加高碱度精炼渣

LF白渣精炼[渣中T.Fe-0.43%

(MnO+FeO)-0.93%

SiO

-5%

平均(CaO)/(Al

)-1.9

]

20 min RH处理

连铸保护浇铸等工艺措施

并在炉后平台

LF精炼和钙处理过程采用合适的吹氩模式

使20CrMoH齿轮钢铸坯总氧含量≤15×10

-6

平均总氧含量为11.8×10

-6

。

Abstract

The key technology for controlling the oxygen content in gear steel is analyzed including SiO

content in refining slag

(CaO)/( A1

)

(FeO + MnO)

Ar stirring and concasting process. Combined with process conditions at Vanadium Recovery and Steelmaking Plant

Panzhihua New Steel-Vanadium Co Ltd

with the process measures such as controlling converter end [C

]

≥0. 10%

ladle slag thickness 50 ~ 80 mm and adding high basicity slag during tapping

LF white slag refining [ in slag T. Fe-0. 43%

( MnO + FeO)-0. 93%

SiO

-5%

average (CaO)/(Al

) -1. 9

]

RH treatment for 20 min

shielded continuous casting

and using suitable argon blowing models in ladle at back platform of converter

during LF refining a

nd calcium treating

the total oxygen content in bloom of gear steel 20CrMoH is ≤15 X 10

-6

and the average total oxygen content is 11. 8 x 10

-6

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