Application of Iron Ladle Injecting Dephosphorization of Hot Metal in 70t AOD 1-Step 400 Series Stainless Steel Steelmaking Process

黄云; 侯成; 郭戌

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Application of Iron Ladle Injecting Dephosphorization of Hot Metal in 70t AOD 1-Step 400 Series Stainless Steel Steelmaking Process

更新时间：2026-01-21

- Application of Iron Ladle Injecting Dephosphorization of Hot Metal in 70t AOD 1-Step 400 Series Stainless Steel Steelmaking Process
- Special Steel Vol. 38, Issue 3, Pages: 44-46(2017)
- 作者机构：
  
  北京首钢国际工程技术有限公司炼钢事业部,北京,100043
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：05 December 2016，
  
  Online First：20 July 2022，
  
  Published：20 July 2017
- 稿件说明：
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黄云, 侯成, 郭戌. Application of Iron Ladle Injecting Dephosphorization of Hot Metal in 70t AOD 1-Step 400 Series Stainless Steel Steelmaking Process[J]. Special Steel, 2017, 38(3): 44-46.
DOI：

黄云, 侯成, 郭戌. Application of Iron Ladle Injecting Dephosphorization of Hot Metal in 70t AOD 1-Step 400 Series Stainless Steel Steelmaking Process[J]. Special Steel, 2017, 38(3): 44-46. DOI：

摘要

不锈钢厂采用铁水罐喷吹脱磷工艺为70tAOD提供优质的低磷铁水冶炼400系列不锈钢

取代原电弧炉冶炼环节

实现了新型一步法冶炼不锈钢工艺。生产实践表明

铁水罐喷吹脱磷起始[P]为0.20%

处理后铁水[P]为0.001%0.010%

[C]≥3.2%

温度≥1320℃

完全满足后续AOD冶炼400系不锈钢的需要

与原70tEAF-AOD流程相比

生产成本大幅降低。

Abstract

The iron ladle injecting dephosphorization process is adopted to supply quality low phosphorus hot metal for a 70t AOD to melt 400 series stainless steel and replace the EAF melting link at stainless steel works

finally the new 1-step stainless steel steelmaking process is realized. The production practice shows that the initial hot metal [P] is 0. 20%

after iron ladle injecting dephosphorization treatment the hot metal [P] is 0.001%~0.010%

the hot metal [C] ≥3. 2% and temperature ≥1320°C

it is wholly to meet the requirement for AOD steelmaking 400 series stainless steels

as compared with original 70t EAF-AOD flowsheet

the production cost reduces greatly.

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