Process and Quality of Spring Steel 60Si2Mn(A)Produced by an  150 t Top and Bottom Combined Converter -150 t Ladle Furnace

梁福斌; 刘新生

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Process and Quality of Spring Steel 60Si2Mn(A)Produced by an 150 t Top and Bottom Combined Converter -150 t Ladle Furnace

更新时间：2026-01-21

- Process and Quality of Spring Steel 60Si2Mn(A)Produced by an 150 t Top and Bottom Combined Converter -150 t Ladle Furnace
- Special Steel Vol. 27, Issue 4, Pages: 39-41(2006)
- 作者机构：
  
  河北理工大学冶金与能源学院,唐山,063009
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：24 February 2006，
  
  Online First：17 March 2023，
  
  Published：17 March 2006
- 稿件说明：
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梁福斌, 刘新生. Process and Quality of Spring Steel 60Si2Mn(A)Produced by an 150 t Top and Bottom Combined Converter -150 t Ladle Furnace[J]. Special Steel, 2006, 27(4): 39-41.
DOI：

梁福斌, 刘新生. Process and Quality of Spring Steel 60Si2Mn(A)Produced by an 150 t Top and Bottom Combined Converter -150 t Ladle Furnace[J]. Special Steel, 2006, 27(4): 39-41. DOI：

摘要

采用150 t顶底复吹转炉-150 t LF精炼(加铝1．2 kg／t、钡合金1．0 kg／t、Ar气搅拌、喂SiCa线)-165 mm×165 mm方坯连铸机生产60Si2Mn(A)弹簧钢。LF末期钢中氧含量为(15～25)×10

-6

残余铝含量0．020％-0．030％。铸坯的低倍组织、二次枝晶间距和电解夹杂物分析结果表明

铸坯的组织致密;钢中大部分夹杂物为尺寸≤20μm的颗粒状SiO

、球形(Mn

Fe)O·SiO

和MnS

说明钡合金的使用

有利于降低钢中氧含量和改变夹杂物的形态。

Abstract

The spring steel 60Si2Mn(A)was produced by an 150 top and bottom combined converter - 150 t ladle furnace(adding Al 1.2kg/t

Ba alloy 1.0 kg/t

Ar stiring

feeding SiCa wire)- 165 mmx165 mm billet concaster.The oxygen content in steel at end phase of ladle furnace was (15~25)×10

-6

and residual aluminium was 0.020%～0.030%.The results of analysis on macrostructure of billet

distance between secondary crystal branches and electrolytic analysis of inclusion showed that the most of inclusion in steel were SiO

particle

spherical (Mn

Fe)O · SiO

and MnS with size ≤20 pm. It proves that added barium alloy is available decreasing oxygen content in steel and modifying morphology of inclusion.

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