Process Practice of Non-Aluminum Deoxidation for Spring Steel Steelmaking Production by 100 t DC EAF-LF -VD Flow Sheet

余国松; 杜建新

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Process Practice of Non-Aluminum Deoxidation for Spring Steel Steelmaking Production by 100 t DC EAF-LF -VD Flow Sheet

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- Process Practice of Non-Aluminum Deoxidation for Spring Steel Steelmaking Production by 100 t DC EAF-LF -VD Flow Sheet
- Special Steel Vol. 31, Issue 3, Pages: 38-40(2010)
- 作者机构：
  
  1. 杭州钢铁集团公司1技术中心
  2. 昌兴公司,杭州,310022
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：19 November 2009，
  
  Online First：07 November 2022，
  
  Published：07 November 2010
- 稿件说明：
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余国松, 杜建新. Process Practice of Non-Aluminum Deoxidation for Spring Steel Steelmaking Production by 100 t DC EAF-LF -VD Flow Sheet[J]. Special Steel, 2010, 31(3): 38-40.
DOI：

余国松, 杜建新. Process Practice of Non-Aluminum Deoxidation for Spring Steel Steelmaking Production by 100 t DC EAF-LF -VD Flow Sheet[J]. Special Steel, 2010, 31(3): 38-40. DOI：

摘要

EAF-LF-VD冶炼60Si2MnA和55CrSiA弹簧钢时EAF出钢过程加17～23 kg/t低铝硅铁(Al含量≤0.50%)脱氧

LF补加3～6 kg/t硅铁

并控制精炼渣的碱度≤2.5

可控制[Als

]

≤60×10

-6

总[O

]

(9～20)×10

-6

A类夹杂级别≤0.5

B类≤0.5

C类≤1.5

D类≤0.5。用该脱氧工艺冶炼的钢水可浇注性强

适合大批量工业性生产。

Abstract

In spring steel 60Si2MnA and 55CrSiA steelmaking by EAF-LF-VD

it is available to control [ Als

]

≤ 60 x 10

-6

the total [O

]

(9 〜20) x 10

-6

and get the rating of A series inclusion ≤0.5

B series ≤0. 5

C series ≤ 1. 5 and D series ≤0. 5 by adding 17 ~ 23 kg/t low aluminum ferrosilicon (Al content ≤0. 50% ) during EAF tapping

adding more 3 ~6 kg/t ferrosilicon during LF refining and controlling basicity of refining slag ≤2. 5. The molten steel produced by this deoxidation process has excellent castability being available for mass production.

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