摘要
针对水冷坩埚熔炼过程的电磁场计算和悬浮能力优化问题，利用准三维耦合电流算法，就坩埚结构、电磁频率及熔体电物性对悬浮熔炼的影响进行了分析。
Using the numerical simulation model with quasi-three-dimensions and the modified coupled current method presented in the previous work, the influences of structure of cold crucible, the power frequency and the electricity property of melting charge on the electromagnetic field in the levitation melting processes are analyzed, and the fundamentals for the technique design of levitation melting with cold crucible are presented. It is shown that the levitation melting with cold crucible is a self-balanced and self-stable process, and the cold crucible can be segmented into 16-20 sectors for high frequency electromagnetic field and/or 4-8 sectors for lower frequency one. It is also shown that to change the power frequency greatly influences the magnetic flux density on the surface of metallic charge, but for nonmetallic charge, the main influence on the magnetic flux density is the segmented number of cold crucible.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第7期739-742,共4页
Acta Metallurgica Sinica
基金
国家自然科学基金!59104027
上海市青年科技启明星计划资助
关键词
水冷坩埚
电磁感应
悬浮熔炼
数值分析
cold crucible
electromagnetic induction
levitation melting
numerical simulation
