Application of Terminal Process and Narrow Composition Control Technology of 50 t EAF-LF

王广连; 申景霞; 王学利; 孙永喜; 李猛; 翟正龙

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Application of Terminal Process and Narrow Composition Control Technology of 50 t EAF-LF

更新时间：2026-01-21

- Application of Terminal Process and Narrow Composition Control Technology of 50 t EAF-LF
- Special Steel Vol. 28, Issue 3, Pages: 59-61(2007)
- 作者机构：
  
  莱芜钢铁股份有限公司特殊钢厂,莱芜,271105
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：23 October 2006，
  
  Online First：03 February 2023，
  
  Published：03 February 2007
- 稿件说明：
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王广连, 申景霞, 王学利, et al. Application of Terminal Process and Narrow Composition Control Technology of 50 t EAF-LF[J]. Special Steel, 2007, 28(3): 59-61.
DOI：

王广连, 申景霞, 王学利, et al. Application of Terminal Process and Narrow Composition Control Technology of 50 t EAF-LF[J]. Special Steel, 2007, 28(3): 59-61. DOI：

摘要

莱钢特钢厂通过50 t EAF冶炼终点控制技术(TPC)的应用

稳定了电弧炉钢水终点成分和温度

减轻或消除了钢水过氧化

稳定合金回收率

为LF提供了符合要求的钢水。通过LF前期、中期和后期的模式化操作

实现钢水的窄成分控制(NCC)

使C控制偏差±0.01％炉数达到80％

Mn、Cr控制偏差±0.02％和Si控制偏差±0.05％达91％;齿轮钢S≤0.015％、P≤0.025％、氧含量≤20×10

-6

分别达到96％、97％和95％;轴承钢S≤0.005％、P≤0.020％、氧含量≤12×10

-6

分别达到95％、97％和100％。

Abstract

With application of a 50tEAF steelmaking terminal process control(TPC)at Special Steel Plant

Laiwu Steel

the end composition and temperature of steel and the yield of alloy are constant

and the overoxidation is eliminated or relieved to supply qualified molten steel for LF. With modelling operation in LF earlier

medium and later refining period

the narrow composition control(NCC)of molten steel is realized to get the heats frequency with C control deviation ± 0.01% being80%

Cr±0.02% and Si±0.05% being up to 91%

for gear steel

the heats frequency with S≤ 0.015%

P≤0.025% and oxygen content ≤20×10-6 being respectively up to 96%

97% and 95%

and for bearing steel with S≤0.005%

P≤0.020%

oxygen content≤12×10

-6

being respectively up to 95%

97% and 100%.

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