Effect of Flow Control Devices of Tundish on Cleanliness of Billets

被引：0

作者：

Tang Hai-yan ^{[1
]}

Li Jing-she ^{[1
]}

Gao Jin-guo ^{[1
]}

Ning Jian-cheng ^{[2
]}

Zuo Zhu ^{[2
]}

Tian Han-pu ^{[2
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China

[2] Hunan Hengyang Steeltube Corp, HuaLing Grp, Hengyang 421002, Hunan, Peoples R China

来源：

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2008年 / 15卷

关键词：

tundish; flow control device; cleanliness; inclusion;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The fluid flow of four-strand tundish of round billet under two different weirs has been studied by water model experiments. The effect of tundishes controlled by original and improved weirs on cleanliness of billet has been studied by industrial trial. The results show that the improved weir can increase residence time of molten steel in tundish and removal rate of inclusion and decrease dead volume fractions of tundish. Compared with the original weir, the removal percent of the total oxygen from tundish to billet is obviously increased, and the macroinclusion content and the microinclusion number in billet are decreased by 51.9% and 10.81%, respectively. Also, the total oxygen and inclusion distribution between different strands of improved tundish are more homogeneous.

引用

页码：499 / 504

页数：6

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