Effect of Multiple Electromagnetic Stirring on Carbon Segregation in Concasting Low Carbon Steel

曹红福

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Effect of Multiple Electromagnetic Stirring on Carbon Segregation in Concasting Low Carbon Steel

更新时间：2026-01-21

- Effect of Multiple Electromagnetic Stirring on Carbon Segregation in Concasting Low Carbon Steel
- Special Steel Vol. 31, Issue 2, Pages: 38-39(2010)
- 作者机构：
  
  江阴兴澄特种钢铁有限公司，江阴,214429
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：09 September 2009，
  
  Online First：16 November 2022，
  
  Published：16 November 2010
- 稿件说明：
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曹红福. Effect of Multiple Electromagnetic Stirring on Carbon Segregation in Concasting Low Carbon Steel[J]. Special Steel, 2010, 31(2): 38-39.
DOI：

曹红福. Effect of Multiple Electromagnetic Stirring on Carbon Segregation in Concasting Low Carbon Steel[J]. Special Steel, 2010, 31(2): 38-39. DOI：

摘要

20CrMnTi钢(%:0.17～0.23C、0.80～1.10Mn、1.00～1.30Cr、0.04～0.10Ti)300 mm×340 mm铸坯结晶器-末端电磁搅拌(M-EMS

F-EMS)和3段复合电磁搅拌(M-EMS

S-EMS

F-EMS)对铸坯碳偏析影响的试验结果表明

当M-EMS和F-EMS电流分别从2 HZ/250 A和20 HZ/150 A降至2 HZ/100 A和20 HZ/100 A时

铸坯断面碳成分的极差由0.05%降至0.02%;当采用M-EMS为2 HZ/100 A

S-EMS为20 HZ/50 A

F-EMS为20 HZ/100A三段复合电磁搅拌时

铸坯断面碳成分的极差为0.02%

轧材中心疏松由原2段电磁搅拌的1.0～2.0级降至1.0～1.5级

方框形偏析2.0级出现率由9.7%降至0.8%。

Abstract

Commercial test for the effect of 300 mm x 340 mm bloom mold electromagnetic stirring-final electromagnetic stirring (M-EMS and F-EMS) and 3-section multiple EMS (M-EMS

S-EMS and F-EMS) on carbon segregation of bloom of steel 20CrMnTi (% ： 0. 17 ~0. 23C

0. 80 ~ 1. lOMn

1. 00 ~ 1. 30Cr

0.04 ~0. lOTi) has been carried out. Results show that as current intensity of M-EMS and F-EMS for 2-section stirring decreases respectively to 2 HZ/100 A and 20 HZ-100 A from original 2 HZ/250 A and 20 HZ/150 A

the max different of carbon content in steel at section of bloom decreases to 0. 02% from original 0. 05% ； and as using 3-section multiple EMS

i. e. current intensity- 2 HZ/100 A for M- EMS

20 HZ/50 A for S-EMS and 20 HZ/100 A for F-EMS

the max different of carbon content in steel at section of bloom is 0. 02%

while the rating of centre porosity of rolled products decreases to 1. 0 ~ 1. 5 from original 1. 0 ~ 2. 0 as using 2- section EMS

and the occurred ratio of square segregation decreases to 0. 8% from 9. 7%.

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