Application of Mold Electromagnetic Stirring Technology for 280 mm×380 mm Concasting Bloom

陈永; 朱苗勇

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Application of Mold Electromagnetic Stirring Technology for 280 mm×380 mm Concasting Bloom

更新时间：2026-01-21

- Application of Mold Electromagnetic Stirring Technology for 280 mm×380 mm Concasting Bloom
- Special Steel Vol. 29, Issue 1, Pages: 51-53(2008)
- 作者机构：
  
  1. 东北大学材料与冶金学院,沈阳,110004
  2. 攀枝花钢铁研究院材料研究所,攀枝花,617000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：23 July 2007，
  
  Online First：15 December 2022，
  
  Published：15 December 2008
- 稿件说明：
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陈永, 朱苗勇. Application of Mold Electromagnetic Stirring Technology for 280 mm×380 mm Concasting Bloom[J]. Special Steel, 2008, 29(1): 51-53.
DOI：

陈永, 朱苗勇. Application of Mold Electromagnetic Stirring Technology for 280 mm×380 mm Concasting Bloom[J]. Special Steel, 2008, 29(1): 51-53. DOI：

摘要

试验研究了电磁搅拌的电流(150～500 A)对重轨钢U75V等钢种(mm)280×380、280×325连铸坯冶金质量的影响。结果表明

当电流由250A提高至500A时

重轨钢U75V铸坯中心区等轴晶率由18.8%增至36.2%

夹杂总量由8.53mg/10kg降至4.68mg/10kg

中心疏松、偏析、缩孔、中心裂纹和中间裂纹等缺陷≤1.0级别的比例达98%。中碳钢连铸电磁搅拌电流为350～400A

低碳钢连铸电磁搅拌电流为250A时

铸坯内部缺陷≤1.0级的比例分别为93%和90%。

Abstract

The effect of current(150～500 A)of mold electromagnetic stiring(M-EMS)technology on metallurgy quality of 280 mm×380 mm

280 mm×325 nm concasting bloom of heavy rail steel U75V etc grade has been tested and studied. Results showed that with the current increasing from 250 A to 500 A

the percentage of equiaxed zone increased from 18.8% to36.2%

the total inclusion amount decreased from8.53 mg/10kg to4.68 mg/10kg and the percentage of ratting units ≤1.0 of defects centre porosity

segregation

shrinkage cavity

centre cracks and midway cracks was up to 98%.As concasting stiring current was 350~400 A for medium carbon steels and concasting stiring current was 250 A for low carbon steels

the percentage of ratting units ≤1.0 of casting bloom intemal defects was respectively up to93% and 90%.

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