摘要
应用磁流体力学,结合数值模拟,对不锈钢连铸二冷区电磁场搅拌器的结构进行了优化设计,并对连铸过程中的电磁场与钢水流动的关系进行了定量分析。结果发现,电磁搅拌是控制和改善铁素体不锈钢连铸坯组织的有效手段,合理的电磁搅拌控制参数如下：当电流为600~800A,频率为8~12Hz时,坯壳内部钢水流动速度达到0.6m/s时可以显著提高连铸坯搅拌区域的等轴晶率。
Based on magneto-hydrodynamics（MHD）combining with computational fluid dynamics（CFD）,structure design of electromagnetic stirrer for secondary cooling zone from a stainless steel enterprise was optimized.Meanwhile,relationship of the electromagnetic field with liquid steel flow was described quantitatively.The results show that the optimized electromagnetic stirring parameters are presented as follows：current density of 600~800Aand frequency of 8~12Hz.Electromagnetic stirring is a effective way to control and improve the microstructure of ferrite stainless steel in the continuous casting process.With the help of the optimized stirring parameters and the flow velocity of liquid steel in the mould of 0.6m/s,the equiaxed crystal rate in the stirred zone can be increased significantly.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2014年第1期34-37,共4页
Special Casting & Nonferrous Alloys
关键词
电磁搅拌
铁素体不锈钢
连铸
凝固
EMS
Ferrite Stainless Steel
Continuous Casting
Solidification
