Optimization of a 75 t LF Refining Process of Clean Stainless Steel 0Cr18Ni9

冯焕林; 刘承志

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Optimization of a 75 t LF Refining Process of Clean Stainless Steel 0Cr18Ni9

更新时间：2026-01-21

- Optimization of a 75 t LF Refining Process of Clean Stainless Steel 0Cr18Ni9
- Special Steel Vol. 28, Issue 6, Pages: 49-50(2007)
- 作者机构：
  
  太原钢铁集团有限公司,太原,030003
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：22 May 2007，
  
  Online First：28 December 2022，
  
  Published：28 December 2007
- 稿件说明：
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冯焕林, 刘承志. Optimization of a 75 t LF Refining Process of Clean Stainless Steel 0Cr18Ni9[J]. Special Steel, 2007, 28(6): 49-50.
DOI：

冯焕林, 刘承志. Optimization of a 75 t LF Refining Process of Clean Stainless Steel 0Cr18Ni9[J]. Special Steel, 2007, 28(6): 49-50. DOI：

摘要

通过预处理铁水-75 t K-OBM-S-VOD-LF流程生产0Cr18Ni9纯净不锈钢。0Cr18Ni9纯净钢在LF精炼过程中

当底吹氩搅拌功率由20～40W/t降至13～21W/t

并按Ca/Al≈0.1喂入适量Ca-Si线

钢中氧含量和Al

含量分别降至30×10

-6

和5×10

-6

以下;金相法检验结果表明

0Cr18Ni9纯净钢板坯中夹杂物总量降低40%

≥20μm的夹杂降至5%以下。

Abstract

The 0Crl8Ni9 clean stainless steel is produced by pretreated hot metal - 75 t K-OBM-S - VOD - LF flow sheet. During LF refining for steel 0Cr18Ni9 as bottom argon blown stirring power decreased from 20 ~40 W/t to 13 ~21 W/t with feeding available Ca-Si wire according to Ca/Al≈0.1

the oxygen content and Al

content in steel decreased respectively to less than 30 x 10

-6

and 5 x 10

-6

and the metallographic examination results showed that total amount of inclusions in slab of steel 0Crl8Ni9 decreased by 40%

the inclusions with size ≥20μm decreased to less than 5%.

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