Controlling of Deleterious Elements in Bearing Steel GCrl5 Produced by 150 t LD-LF + RH Flow Sheet

宋满堂; 王会忠; 徐明

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Controlling of Deleterious Elements in Bearing Steel GCrl5 Produced by 150 t LD-LF + RH Flow Sheet

更新时间：2026-01-21

- Controlling of Deleterious Elements in Bearing Steel GCrl5 Produced by 150 t LD-LF + RH Flow Sheet
- Special Steel Vol. 30, Issue 1, Pages: 35-37(2009)
- 作者机构：
  
  1. 北京科技大学冶金与生态工程学院,北京,100083
  2. 本钢集团公诃炼钢厂,本溪,117021
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：05 July 2008，
  
  Online First：29 November 2022，
  
  Published：29 November 2009
- 稿件说明：
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宋满堂, 王会忠, 徐明. Controlling of Deleterious Elements in Bearing Steel GCrl5 Produced by 150 t LD-LF + RH Flow Sheet[J]. Special Steel, 2009, 30(1): 35-37.
DOI：

宋满堂, 王会忠, 徐明. Controlling of Deleterious Elements in Bearing Steel GCrl5 Produced by 150 t LD-LF + RH Flow Sheet[J]. Special Steel, 2009, 30(1): 35-37. DOI：

摘要

本钢炼钢厂采用铁水脱硫-150t转炉-LF+RH-TB精炼-350mm×470mm坯连铸流程生产GCr15轴承钢。通过使用优质铁水(%:0.000 2Ca、0.002 7Cu、≤0.001As、≤0.001Sn、≤0.001Sb、0.002Pb)

控制铁水中[P

]

≤0.040%

]

≤0.003%/

转炉出钢合金化后[Ti

]

为12×10

-6

控制LF+RH精炼过程增[Ti

]

LF末期[Als

]

0.04%等工艺措施

有效地控制GCr15轴承钢的有害元素

使成品钢[Ti

]

≤30×10

-6

[Ca

]

≤8×10

-6

]

≤8×10

-6

]

≤38×10

-6

]

≤0.8×10

-6

轧材低倍、夹杂物等指标均达到标准要求。

Abstract

The GCrl5 bearing steel is produced by hot metal desulphurizing - 150 t LD - LF + RH - TB refining - 350 mm x 470 mm bloom concasting flow sheet at steelmaking plant

Benxi Steel. With the operation practices including using quality hot metal (0. 000 2Ca

0. 002 7Cu

≤0. 001 As

≤0. 001 Sn

≤O.OOlSh

0. 002Pb)

controlling hot metal ≤0. 040% [ P

]

and ≤0. 003% [S

]

12 x 10

-6

[TiJ after alloying in LD tapping

controlling increment of [Ti

]

in LF + RH refining process

0. 04% [ Als

]

at end phase of refining

the deleterious elements in bearing steel GCr15 was controlled effectively

e. g. [Ti

]

≤30x10

-6

[Ca

]

≤8x10

-6

. [0

]

≤8x10

-6

]

≤38 x 10

-6

]

≤0. 8x10

-6

and micro- structure

inclusion index etc of rolled products all

met the requirements of standard.

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