摘要
采用单侧线性电磁搅拌技术进行了铸坯的静态浇铸实验 ,并对电磁搅拌过程中的电磁场和流场进行了数值模拟 ,确定了实验条件下获得全等轴晶铸坯的电磁搅拌参数·结果表明 ,在本实验条件下 ,当最大电磁搅拌强度为 1414AHz ,钢液中的最大电磁力及最大流动速度分别达到 6 386N/m3 和 0 2 2m/s时 ,获得了等轴晶比率几乎为 10 0 %的铸坯·
Experiments of improving the equiaxed zone ratio in billet were carried out by one sided linear electromagnetic stirring. Furthermore, the electromagnetic force fields and flow fields during the electromagnetic stirring process were simulated. The macrostructure of the casting billet is greatly improved by one sided linear electromagnetic stirring, and its equiaxed zone ratio is greatly increased on the condition of reasonable electromagnetic stirring and casting parameters. The billet of nearly 100% equiaxed grains can be obtained by one sided linear electromagnetic stirring at the maximum intensity of 1?414?AHz 1/2 , while the maximum stirring force and the maximum velocity in the molten steel are 6?386?N/m 3 and 0 22?m/s respectively.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2001年第5期535-538,共4页
Journal of Northeastern University(Natural Science)
基金
国家重点基础研究发展规划项目 (G19980 6 15 10 )
关键词
静态浇铸
线性电磁搅拌
凝固组织
等轴晶比率
数值模拟
钢铁
铸坯
static casting
linear electromagnetic stirring
solidification structure
equiaxed zone ratio
numerical simulation
