Application Practice of Carbon-Aluminum Top Slag-Modifier in Low Carbon Steel Production

徐韬; 姜新平; 王强; 俞海明; 谭广志

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Application Practice of Carbon-Aluminum Top Slag-Modifier in Low Carbon Steel Production

更新时间：2026-01-21

- Application Practice of Carbon-Aluminum Top Slag-Modifier in Low Carbon Steel Production
- Special Steel Vol. 42, Issue 5, Pages: 26-29(2021)
- 作者机构：
  
  1. 新疆八一钢铁股份有限公司第二炼钢厂,乌鲁木齐,830022
  2. 北京璞域环保科技有限公司,北京,100081
  3. 新疆中合大正冶金科技有限公司,乌鲁木齐,830022
  4. 新疆工程职业技术学院,乌鲁木齐,830022
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：22 January 2021，
  
  Online First：01 March 2022，
  
  Published：01 March 2021
- 稿件说明：
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徐韬, 姜新平, 王强, et al. Application Practice of Carbon-Aluminum Top Slag-Modifier in Low Carbon Steel Production[J]. Special Steel, 2021, 42(5): 26-29.
DOI：

徐韬, 姜新平, 王强, et al. Application Practice of Carbon-Aluminum Top Slag-Modifier in Low Carbon Steel Production[J]. Special Steel, 2021, 42(5): 26-29. DOI：

摘要

钢包顶渣的改质是防止钢水二次氧化、钢液深度脱氧、优化钢液和夹杂物去除的重要工艺方法。120 t转炉+LF +板材生产线生产低碳铝镇静钢SPHC和330CL时

LF精炼采用碳铝改质剂(/%: ≥35Al

，

30C，5~15Al，

≤

5SiO

6 ~12CaF

)

较无碳改质剂

(/%：40~ 60Al

≥

A1，2~ 1

CaO，≤10SiO

)钢水增氮量从0.000

0.0015% 降至≤0.001%，脱硫率从40%增至45%。

Abstract

The modification of ladle top slag is an important technological method to prevent secondary oxidation of molten steel

deep deoxidization of molten steel and optimize the removal of inclusions in molten steel. By using 120 t BOF- LF-Plate production line to produce low carbon aluminum killed steel SPHC and 330CL

in LF refining with using carbon- aluminum modifier (/% : ≥35Al

15~30C

5~15Al

≤5SiO

6 - 12CaF

)

as compared with using carbon-free top slag modifier (/% : 40 ~ 60Al

≥2

2 ~1

CaO

≤10SiO

)

liquid N increment dicreases from 0.000 5% ~ 0.001 5% to ≤0. 001%

rate of desulphurization increases from 40% to 45%

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