Non-uniform heat transfer behavior during shell solidification in a wide and thick slab continuous casting mold

2014 ◽  
Vol 21 (3) ◽  
pp. 240-250 ◽  
Author(s):  
Zhao-zhen Cai ◽  
Miao-yong Zhu
2021 ◽  
Vol 40 (1) ◽  
pp. 370-381
Author(s):  
Luping Zhang ◽  
Pengcheng Xiao ◽  
Zengxun Liu ◽  
Jingyi Zhou ◽  
Liguang Zhu

Abstract The growth rate of the shell thickness in the funnel mold for ultrahigh-speed continuous casting of steel has a significant effect on the shell surface quality. By using the node temperature inheritance algorithm, a three-dimensional transient thermal conductivity model of the liquid steel solidification inside the mold was established, and the effects of casting temperature and speed on the heat transfer behavior of the thin slab were investigated. The results show that with an increase in the casting speed from 4.0 to 6.0 m·min−1, the maximum thickness of the shell at mold exit was reduced from 26 to 12.8 mm, and the maximum temperature of the slab surface at mold exit increased from 1,210 to 1,305°C. However, the increase of casting temperature from 1,550 to 1,560°C had little effect on the surface temperature and thickness of the slab shell.


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