切缝参数对工业实验软接触结晶器内磁场分布影响的数值模拟  

Numerical Simulation of Influence of Slit Parameters of Soft-contact Mold on the Distribution of Magnetic Field

作　　者：张林涛[1] 王恩刚[1] 邓安元[1] 赫冀成[1] 

机构地区：[1]东北大学材料电磁过程教育部重点实验室,辽宁沈阳110004

出　　处：《过程工程学报》2006年第5期713-717,共5页The Chinese Journal of Process Engineering

基　　金：国家自然科学基金资助项目(编号:50274023);国家高技术研究发展计划(863)基金资助项目(编号:2001AA337040);辽宁省青年人才基金资助项目(编号:2005221004)

摘　　要：通过有限元法三维数值模拟,研究了不同结构参数对圆坯电磁软接触结晶器内部磁场的影响规律.结果表明,对于部分切缝结晶器,结晶器口部有无盖板对其内部磁场分布的影响不大;增加结晶器切缝数,结晶器内磁场的渗透率、磁感应强度、磁场的有效作用范围及磁场的均匀性都得到增强;切缝宽度对结晶器内部磁场的影响不大;切缝长度越长,磁感应强度越大,磁场的有效作用范围越大.The distribution of magnetic field in electromagnetic so.contact mold with different slit parameters was analyzed through 3-D FEM numerical simulation method. The results show that the cover placed on the top of the mold has little influence on the distribution of magnetic field with or without closed slit. With increment of slit number, the permeability of magnetic field and the maximum value of magnetic flux density become larger, The magnetic flux density becomes more uniform along the circumference, The width of slit has little effect on the distribution of magnetic field. The longer the slit length is, the larger the maximum value of magnetic field is, and the effective acting range of magnetic field becomes larger.

关 键 词：电磁连铸 数值模拟 结晶器结构 切缝 磁场分布 

分 类 号：TG249.7[金属学及工艺—铸造]