Longitudinal surface cracks on continuous casting slabs of P and Cu containing container steel

被引：0
|
作者：
Xinhua Wang
机构：
来源：
Journal of University of Science and Technology Beijing(English Edition) | 2003年 / 04期
关键词：
container steel; CC slab; longitudinal surface crack; mold; hot ductility;
D O I：
暂无
中图分类号：
TG142 [钢];
学科分类号：
080502 ;
摘要：
The fact that the amount of the mold flux components differs at different locations on the cracking surface indicates that the longitudinal surface cracks are initially formed in the mold and are enlarged in the secondary cooling zone. Based on the hot ductility measurement of two typical container used steels, it is known that the steels are in severe embrittlement state in the temperature range of 825-775℃. By means of increasing Cr/Ni plating thickness on the upper part of the mold, reducing mold heat flux, adopting new secondary cooling pattern, etc., the occurrence of the surface longitudinal cracks on the steel CC (continuous casting) slabs has been significantly reduced.
引用
收藏
页码：16 / 19
页数：4
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