Formation of Dense Inclusion Buildup on Submerged Entry Nozzle by Electric Current Pulse

In this work, low-density electric current pulse （ECP） has been applied to submerged entry nozzle （SEN） and its effect on the morphology of the inclusion buildup and the distribution of the inclusions in slab has been explored. The results reveal that under the unique effects of ECP, part of small i...

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Veröffentlicht in:	Acta metallurgica sinica : English letters 2016-05, Vol.29 (5), p.500-504
Hauptverfasser:	Dai, Wen-Bin, Zhou, Xiu-Li, Yang, Xin, Tang, Guang-Peng, Jia, Dan-Bin, Cheng, Nai-Liang, Yu, Jing-Kun
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum Boundary layers Characterization and Evaluation of Materials Chemistry and Materials Science Continuous casting Corrosion and Coatings Density Electric currents Flow velocity Inclusions Materials Science Metallic Materials Nanotechnology Nozzles Organometallic Chemistry Service life Spectroscopy/Spectrometry Tribology Viscosity 使用寿命分布形态包裹体夹杂物浸入式水口电流方向脉冲形成脉冲电流
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Beschreibung
Zusammenfassung:	In this work, low-density electric current pulse （ECP） has been applied to submerged entry nozzle （SEN） and its effect on the morphology of the inclusion buildup and the distribution of the inclusions in slab has been explored. The results reveal that under the unique effects of ECP, part of small inclusions less than 10 μm is expelled through the boundary layer along the current direction to form dense inclusion buildup. This method is of great potential to prolong the service life of SEN and improve the quality of the steel product.
ISSN:	1006-7191 2194-1289
DOI:	10.1007/s40195-016-0418-x