Study on Deoxidation, Desulfurization and Inclusion Control of SiCaBa Alloy on Spring Steel 55SiCr

刘锦文; 铁占鹏; 郭路召; 张硕; 张家泉; 唐海燕

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Study on Deoxidation, Desulfurization and Inclusion Control of SiCaBa Alloy on Spring Steel 55SiCr

更新时间：2026-01-21

- Study on Deoxidation, Desulfurization and Inclusion Control of SiCaBa Alloy on Spring Steel 55SiCr
- Special Steel Vol. 41, Issue 3, Pages: 20-24(2020)
- 作者机构：
  
  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：25 December 2019，
  
  Online First：24 April 2022，
  
  Published：24 April 2020
- 稿件说明：
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刘锦文, 铁占鹏, 郭路召, et al. Study on Deoxidation, Desulfurization and Inclusion Control of SiCaBa Alloy on Spring Steel 55SiCr[J]. Special Steel, 2020, 41(3): 20-24.
DOI：

刘锦文, 铁占鹏, 郭路召, et al. Study on Deoxidation, Desulfurization and Inclusion Control of SiCaBa Alloy on Spring Steel 55SiCr[J]. Special Steel, 2020, 41(3): 20-24. DOI：

摘要

针对服役条件要求苛刻的55SiCr气门弹簧钢

采用高温管式炉试验研究了低氧条件下向钢中加入SiCaBa合金的脱氧、脱硫及夹杂物控制规律。结果表明

SiCaBa合金有进一步深脱氧、深脱硫的效果

并可细化夹杂物尺寸;在钢中加入0.48 kg/t

钢

的SiCaBa合金（49.8%Si-25.6%Ca-11.1%Ba）和Fe

含量低于1%的精炼渣能使T[O

]

和[S

]

分别降至11×10

-6

和8×10

-6

。

Abstract

For the 55SiCr valve spring steel with strict service condition

its deoxidation

desulfurization and inclusion change are studied by laboratory experiments under a low oxygen condition by adding SiCaBa alloy into the molten steel. The results show that SiCaBa alloy has the effect of deep deoxidation and desulfurization

as well as refining the inclusion size. By adding 0.48 kg/t steel of SiCaBa alloy with 49. 8% Si-25. 6% Ca-11. 1% Ba and a proper amount of refining slag with Fe

content less than 1%

the T[0

]

and [S

]

can respectively decrease to 11 x 10

-6

and 8 x 10

-6

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