低频电磁铸造铝合金结晶器材料对磁场的影响  

Effects of Structure Materials of Semi-continuous Casting Crystallizer for Aluminum Alloy under Low-frequency Electromagnetic Field on Magnetic Field

作　　者：李建超[1] 麻永林[1] 王宝峰[1] 崔建忠[2] 

机构地区：[1]内蒙古科技大学 [2]东北大学

出　　处：《特种铸造及有色合金》2005年第3期133-135,共3页Special Casting & Nonferrous Alloys

基　　金：国家重点基础研究发展规划项目 (G1 9990 6490 50 1 ) ;内蒙古科技大学基金资助项目

摘　　要：低频电磁场作用下铸造铝合金过程中 ,优化的结晶器应该在电源频率相同、较低的电流下在铝熔体内部能够获得所需要的磁场强度。结合生产实际情况 ,设计出工业上实用的低频电磁铸造铝合金结晶器。在结晶器外套材料的不同情况下 ,对低频电磁铸造铝合金过程的电磁场进行了三维有限元数值模拟。模拟结果表明 ,当结晶器外套为软磁材料时 ,铝熔体内部磁场强度得到明显加强。The optimized crystallizer should ensure that the desirable magnetic flux density can be realized in Al melt with lower current under the same power-frequent.The industrial practical crystallizer for Al alloy in low-frequent electromagnetic casting was designed based on the above mentioned idea.A 3D FEM numerical simulation of electromagnetic field in the crystallizer with different outer sleeves materials for Al melt in low-frequent electromagnetic casting were conducted.The results showed that the magnetic flux density in the Al melt can be enhanced with outer sleeves of soft magnetic materials in crystallizer.

关 键 词：数值模拟 结晶器 电磁铸造 铝合金 

分 类 号：TG249[金属学及工艺—铸造]