Control of Acid Soluble Aluminium Content in Molten Steel at End of 150 t RH Refining

李双江; 胡志刚; 杨晓江; 张士宪; 李杰

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Control of Acid Soluble Aluminium Content in Molten Steel at End of 150 t RH Refining

更新时间：2026-01-21

- Control of Acid Soluble Aluminium Content in Molten Steel at End of 150 t RH Refining
- Special Steel Vol. 34, Issue 6, Pages: 4-6(2013)
- 作者机构：
  
  1. 河北钢铁技术研究总院,石家庄,050000
  2. 河北钢铁集团唐钢第一钢轧厂,唐山,063016
  3. 河北工业职业技术学院材料工程系,石家庄,050091
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：20 May 2013，
  
  Online First：05 September 2022，
  
  Published：05 September 2013
- 稿件说明：
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李双江, 胡志刚, 杨晓江, et al. Control of Acid Soluble Aluminium Content in Molten Steel at End of 150 t RH Refining[J]. Special Steel, 2013, 34(6): 4-6.
DOI：

李双江, 胡志刚, 杨晓江, et al. Control of Acid Soluble Aluminium Content in Molten Steel at End of 150 t RH Refining[J]. Special Steel, 2013, 34(6): 4-6. DOI：

摘要

在参考80炉次SPHD、SPHE和IF钢生产数据的基础上

采用多元线性回归分析建立了用Al脱氧的RH精炼终点钢水酸溶铝含量-[Als

]

的计算模型

分析了RH脱碳结束时钢水氧活度、脱氧加铝量和钢水净循环时间对终点钢水酸溶铝含量的影响。结果表明

RH脱碳结束钢水氧活度、脱氧加铝量是影响终点钢水酸溶铝含量的重要因素;当RH脱碳后钢水温度、氧活度、炉渣中FeO+MnO含量-(FeO+MnO)以及钢水的净循环时间分别在1 600℃、2×10

-4

、15%和8 min时

要控制终点钢水酸溶铝为0.02%~0.05%须在RH脱氧过程中控制加铝量0.86~1.53 kg/t。

Abstract

Based on referential production data of 80 heats of SPHD

SPHE and IF steel

a calculation model for acid soluble aluminium content in molten steel- [Als

]

at end of RH refining deoxidizing by Al is established by using multiple linear regression analysis and the effect of activity of oxygen in liquid

adding aluminium for deoxidation and net circulation time of liquid at end of RH decarbonizing on end [ Als

]

is analyzed. Results show that the RH decarburization end activity of oxygen in liquid and adding aluminium amount for deoxidation are main factors to influence the end [ Als

]

； as after RH decarburization the liquid temperature

activity of oxygen

FeO + MnO content in slag- ( FeO + MnO) and liquid net circulation time are respectively 1 600 °C

2 x 10

-4

15% and 8 min

in order to control the end [ Als

]

0. 02% ~0. 05%

the adding aluminium amount in RH deoxidation p

rocess should be controlled in 0. 86 ~ 1. 53 kg/t.

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