Heat transfer behavior in ultrahigh-speed continuous casting mold

被引：6

作者：

Zhang, Luping ^{[1
]}

Xiao, Pengcheng ^{[1
]}

Liu, Zengxun ^{[1
]}

Zhou, Jingyi ^{[1
]}

Zhu, Liguang ^{[2
,3
]}

机构：

[1] North China Univ Sci & Technol, Coll Met & Energy, Tangshan 063000, Peoples R China

[2] Hebei Univ Sci & Technol, Shijiazhuang, Hebei, Peoples R China

[3] Engn Coll, Shijiazhuang, Hebei, Peoples R China

来源：

HIGH TEMPERATURE MATERIALS AND PROCESSES | 2021年 / 40卷 / 01期

基金：

中国国家自然科学基金;

关键词：

continuous casting; ultrahigh-speed; heat transfer; shell solidification; numerical simulation; NUMERICAL-SIMULATION; FLUID-FLOW; THIN SLAB; SOLIDIFICATION; WIDE;

D O I：

10.1515/htmp-2021-0042

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 sur- face at mold exit increased from 1,210 to 1,305 degrees C. However, the increase of casting temperature from 1,550 to 1,560 degrees C had little effect on the surface temperature and thickness of the slab shell.

引用

页码：370 / 381

页数：12

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