Processing and Metallurgical Quality of Bearing Steel GCr15 Produced by 120 t Converter-LF-RH-CC Flow Sheet

刘明; 柯晓涛; 邓通武; 陈小龙; 程书文; 李叙生; 蒲学坤

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Processing and Metallurgical Quality of Bearing Steel GCr15 Produced by 120 t Converter-LF-RH-CC Flow Sheet

更新时间：2026-01-21

- Processing and Metallurgical Quality of Bearing Steel GCr15 Produced by 120 t Converter-LF-RH-CC Flow Sheet
- Special Steel Vol. 30, Issue 3, Pages: 38-39(2009)
- 作者机构：
  
  1. 攀枝花钢铁研究院,攀枝花,617000
  2. 攀枝花新钢机股份有限公司,攀枝花,617067
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：04 November 2008，
  
  Online First：24 November 2022，
  
  Published：24 November 2009
- 稿件说明：
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刘明, 柯晓涛, 邓通武, et al. Processing and Metallurgical Quality of Bearing Steel GCr15 Produced by 120 t Converter-LF-RH-CC Flow Sheet[J]. Special Steel, 2009, 30(3): 38-39.
DOI：

刘明, 柯晓涛, 邓通武, et al. Processing and Metallurgical Quality of Bearing Steel GCr15 Produced by 120 t Converter-LF-RH-CC Flow Sheet[J]. Special Steel, 2009, 30(3): 38-39. DOI：

摘要

攀钢采用铁水预处理-120 t顶底复吹转炉-LF-RH-280 mm×380 mm连铸工艺生产GCr15轴承钢。通过转炉采用挡渣技术和增碳法操作工艺

转炉终点碳0.03%～0.07%

出钢时加入含CaC

脱氧剂预脱氧

出钢后进行铝脱氧

LF精炼渣碱度CaO/SiO

3.0～5.0

中间包平均钢水过热度为26.5℃。检验结果表明

铸坯的碳偏析指数为1.08

平均[O

]

为8×10

-6

]

≤0.015%

]

≤0.011%

夹杂物级别满足标准要求。

Abstract

Bearing steel GCrl5 is produced by hot metal pretreatment- 120 t top and bottom combined blown convert- er-LF-RH-280 mm X 380 mm CC process at Pan Steel. With converter recarburization practice and slag stopping technology during tapping

controlling converter end [C

]

：0. 03% ~0. 07%

adding deoxidizing agent containing CaC

during tapping for pre-deoxidizing

deoxidizing by aluminium after tapping

controlling the basicity (CaO/SiO

) of LF refining slag 3. 0 ~ 5. 0

and average overheat of liquid steel in tundish = 26. 5℃

the examination results showed that carbon segregation index was 1.08

average [0

]

8x10

-6

]

≤0. 015%

]

≤0.011%，and the rating of inclusion in steel met the requirement of standard.

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