Research on the Influence of Single Winding Helical Electromagnetic Stirring on the Center Segregation of High Carbon Large Square Billet

被引：0
|
作者：
Guo Q. [1 ]
Tang X. [2 ]
Li Z. [3 ]
Pan D. [1 ]
Chai M. [2 ]
Jia J. [2 ]
机构：
[1] Ansteel Beijing Research Institute Co., Ltd., Beijing
[2] Technology Center of Ansteel Co., Ltd., Anshan
[3] General Steelmaking Plant of Ansteel Co., Ltd., Anshan
来源：
Cailiao Daobao/Materials Reports | 2022年 / 36卷 / 08期
关键词：
Carbon segregation; Continuous casting; Helical electromagnetic stirring; Large square billet;
D O I：
10.11896/cldb.21010147
中图分类号：
学科分类号：
摘要：
In this work, a new type of helical electromagnetic stirrer (single winding) was developed, and the influence of helical electromagnetic field excited by single winding coil on the element distribution of steel billet (large square billet) with carbon content of 0.75% (mass fraction) was also investigated. The results indicated that the current, stirring frequency and stirring mode of spiral electromagnetic stirring will significantly affect the distribution of alloy elements. In the reverse helical stirring mode, the higher the current and frequency of spiral stirring are (higher than 400 A and 6 Hz, respectively), the more significantly element segregation of billet will be improved. The segregation degree of alloy elements before and after stirring was measured by spark in-situ analysis. It is found that the statistical segregation degree of carbon elements in the central area of billet can be reduced by more than 50% (95% confidence interval) after stirring through helical electromagnetic field with optimized parameters. © 2022, Materials Review Magazine. All right reserved.
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