非稳态浇铸时IF钢铸坯表层夹杂物粒径的分布

特殊钢 ›› 2006, Vol. 27 ›› Issue (5): 9-11.

非稳态浇铸时IF钢铸坯表层夹杂物粒径的分布

张乔英,王立涛 ,王新华,王万军,李宏

1北京科技大学冶金与生态学院，北京100083;
2首钢技术研究院，北京100043

收稿日期:2006-03-22 出版日期:2006-10-01 发布日期:2006-10-01
作者简介:张乔英(1976-),女，博士研究生，从事钢质量和冶金过程数值模拟研究

Distribution of Inclusion Size in Surface Layer of IF Steel Slab under Unsteady Casting

Zhang Qiaoying,Wang Litao,Wang Xinhua,Wang Wanjun, Li Hong

1 School of Metallurgy and Ecological Engineering,University of Science and Technology,Beijing 100083;
2 Technology Research Institute,Capital Iron and Steel Group Corp,Beijing 100043

Received:2006-03-22 Published:2006-10-01 Online:2006-10-01

摘要/Abstract

摘要： 用原位统计分布分析仪(OPA-100)研究了拉速变化时(1.4 m/min 至0.6 m/min,0.6 m/min 至 1.4 m/min)IF钢1150 mm×230 mm铸坯表层试样夹杂物粒径和频数的分布。结果表明，夹杂物粒径与其频数分布规律基本符合一阶指数衰减曲线，夹杂物粒径x(μm) 与频数 y 的拟合公式为 y = A1 ·exp (-x/tl)+y0; 式中A1,t1,y0为常数；R 为相关系数(R²>0.97)

Abstract: The distribution of size and frequency of inclusion in samples of surface layer of IF steel 1150 mm× 230 mm casting slab with unsteady casting speed(1.4 m/min to 0.6 m/min and 0.6 m/min to1.4 m/min)has been studied by Original Position Analysis System(OPA- 100). The results show that the distribution rule of size and frequency of inclusion basically accords with first-order exponential decay curves. The expressions of inclusion size x (μm) and frequency y is y=Al ·exp(-x/tl)+y0;A1,tl and y^O are constant,R is related coefficient(R²> 0.97).

张乔英, 王立涛, 王新华, 王万军, 李宏. 非稳态浇铸时IF钢铸坯表层夹杂物粒径的分布[J]. 特殊钢, 2006, 27(5): 9-11.

Zhang Qiaoying, Wang Litao, Wang Xinhua, Wang Wanjun, Li Hong. Distribution of Inclusion Size in Surface Layer of IF Steel Slab under Unsteady Casting[J]. Special Steel, 2006, 27(5): 9-11.