Effect of Casting Electromagnetic Stirring and Light Reduction on Metallurgical Quality of Gas Cylinder Steel 34CrMo4

卢秉军; 齐峰; 沈万林; 刘军

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Effect of Casting Electromagnetic Stirring and Light Reduction on Metallurgical Quality of Gas Cylinder Steel 34CrMo4

更新时间：2026-01-21

- Effect of Casting Electromagnetic Stirring and Light Reduction on Metallurgical Quality of Gas Cylinder Steel 34CrMo4
- Special Steel Vol. 38, Issue 5, Pages: 40-43(2017)
- 作者机构：
  
  1. 本钢板材股份有限公司产品研究院,本溪,117000
  2. 焦作金鑫恒拓新材料股份有限公司,焦作,454450
  3. 本钢板材股份有限公司炼钢厂,本溪,117000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：27 April 2017，
  
  Online First：15 July 2022，
  
  Published：15 July 2017
- 稿件说明：
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卢秉军, 齐峰, 沈万林, et al. Effect of Casting Electromagnetic Stirring and Light Reduction on Metallurgical Quality of Gas Cylinder Steel 34CrMo4[J]. Special Steel, 2017, 38(5): 40-43.
DOI：

卢秉军, 齐峰, 沈万林, et al. Effect of Casting Electromagnetic Stirring and Light Reduction on Metallurgical Quality of Gas Cylinder Steel 34CrMo4[J]. Special Steel, 2017, 38(5): 40-43. DOI：

摘要

气瓶钢34CrMo4的生产工艺流程为铁水预处理-180 t BOF-LF-RH-350 mm×470 mm坯连铸。对4流连铸分别采用结晶器电磁搅拌（M-EMS

480 A

2 Hz）;M-EMS+凝固末端电流搅拌（E-EMS

320 A

6 Hz）;M-EMS+轻压下（LR

3 mm-4 mm-3 mm）以及M-EMS+E-EMS+LR进行工业试验

得出M-EMS（480 A

2 Hz）+E-EMS（320A

6 Hz）+3-4-3（mm）轻压下工艺

有效提升连铸坯内部冶金质量。9炉生产结果表明

该流程生产的气瓶钢34CrMo4的抗拉强度达1070~1159 MPa

钢中氧含量≤0.0020%

采用M-EMS+E-EMS+LR连铸工艺时

该钢具有高致密度

铸坯中心疏松级别≤1.0。

Abstract

The production flowsheet for gas cylinder steel 34CrMo4 is hot-metal pretreatment- 180 t BOF- LF- RH- 350 mm x 470 mm blooms casting. The pilot production is carried out on 4-strands casting respectively by using mold electromagnetic stirring ( M-EMS

480 A

2 Hz) ； M-EMS + solidification end electromagnetic stirring ( E-EMS

320 A

6 Hz) ； M-EMS + light reduction ( LR

3 mm-4 mm-3 min) and M-EMS + E-EMS + LR process

it is obtained that the process with M-EMS (480 A

2 Hz) + E-EMS (320 A

6 Hz) + 3-4-3(mm) light reduction is available to improve the internal metallurgical quality of casting bloom. 9 heats commercial production results show that the tensile strength of gas cylinder steel 34CrMo4 steelmaking by the flowsheet is up to 1070 〜1159 MPa and oxygen content in steel is ≤0.0020%

and by using M-EMS + E-EMS + LR casting process the steel has high density and the rating of center porosity of bloom is ≤1.0.

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