凝固末端电磁搅拌对高碳钢内部质量的影响

钢铁, 2006, 41(11): 26-0.

凝固末端电磁搅拌对高碳钢内部质量的影响

1.1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

2.2. Qingdao Iron and Steel Group Co., Qingdao 266043, Shandong, China

关键词：高碳钢;小方坯;内部质量

Effect of White Band on Quality of Billet Cast With FEMS

FENG Jun , CHEN Weiqing , WANG Xiaofeng , WANG Qingxian , SU Wang

Keywords： high carbon steel;billet;billet quality

高碳钢小方坯连铸生产中采用M+FEMS时，在FEMS的强搅拌下产生白亮带，白亮带的出现使得铸坯中心碳偏析、中心缩孔和疏松加重。白亮带处的枝晶生长方向改变而生成弯曲的枝晶。白亮带形成的最重要机理是冲刷机理。

White band in high carbon steel billet is formed due to the strong stirring intensity of FEMS. The central carbon segregation and cavity and porosities in billet are aggravated with the appearance of white band. The dendrite growth direction is changed and dendrites are curved in the zone of white band. The mechanism of white band formation is scouring.

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