圆坯中频电磁软接触结晶器内磁场分布实验研究  

Experiment Study of Magnetic Field Distribution in the Intermediate Frequency Soft-Contact Electromagnetic Continuous Casting Mold for Round Billets

作　　者：王朝阳[1] 王恩刚[1] 张兴武[1] 赫冀成[1] 

机构地区：[1]东北大学材料电磁过程研究教育部重点实验室,辽宁沈阳110004

出　　处：《钢铁》2009年第10期36-40,共5页Iron and Steel

基　　金：国家高技术研究发展计划资助项目(2001AA337040);辽宁省科技攻关计划重大资助项目(2005221006);辽宁省青年人才基金资助项目(2005221004);高等学校学科创新引智计划资助项目(B07015)

摘　　要：为了研究中频电磁软接触连铸结晶器内磁场分布,通过实验的方法测量出不同电参数和工艺参数下圆坯中频电磁软接触连铸结晶器内磁感应强度的分布情况。实验结果表明:结晶器内磁感应强度随着功率和感应线圈电流的增加而增加;相同功率时随着电源频率的增加先增大后减小,相同电流时随着频率的增加而增加,但是增幅却在减小;在本实验中,相同功率下频率为2500 Hz时产生的磁感应强度最大;随着自由液面的下降,结晶器内磁感应强度先增大后减小,并且当自由液面位于感应线圈的中心高度时磁感应强度达到最大。In order to study the distribution of the magnetic field of the mold of intermediate frequency soft-contact electromagnetic continuous casting, the distribution of magnetic induction intensity of mold under different electrical parameters and different processing parameters through the experimental method were measured. The results show that the magnetic induction intensity of mold increased with the increasing of power and current intensity of the coils; under the same power, with the increasing of the frequency of power, the magnetic induction intensity of mold was reduced after the first increase, and under the same current intensity, with the increasing of the frequency of power, the magnetic induction intensity of mold was increased. In this experiment, when the frequency was 2 500 Hz, the largest magnetic induction intensity was obtained under the same power; with the fall of height of the free surface, the magnetic induction intensity was reduced after the first increase, and when the free surface was located in the center of height of the coils, magnetic induction intensity reached the maximum value.

关 键 词：中频 电磁软接触 结晶器 电磁场 磁感应强度 

分 类 号：TG249.7[金属学及工艺—铸造]