摘要
为了研究熔体金属电磁立柱成形能力并计算电磁作用下的液注高度,从电磁铸造立柱成形的基本原理出发,建立了电磁场作用下金属立柱成形时液柱高度数学模型,并试验验证了模型的准确性。利用液柱高度数学模型对铝、钢、锡铅合金等金属的电磁铸造可行性,以及电力参数对液柱高度的影响进行研究。结果表明:铝电磁无模成形能力最强,而钢及锡铅合金电磁无模成形能力则基本相同;钢及锡铅合金电磁立柱成形所需的磁感强度约为0.080.10T,而铝则只需约0.04T。
In order to calculate the liquid-column height and estimate the feasibility of electromagnetic casting, a mathematical model of the liquid-column height was established and some experiments were carried out to prove the validity of the model. The effects of the parameters(magnetic intensity and frequency) on the liquid height and on the feasibility of electromagnetic casting were studied by the application of the mathematical model in aluminum and Sn-3%Pb alloy. The results show that the magnetic intensity required for steel and Sn-3%Pb alloy to achieve electromagnetic casting should not be less than 0.080.09 T, while the magnetic intensity for aluminum to achieve electromagnetic casting is only about 0.04 T.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2004年第9期1465-1470,共6页
The Chinese Journal of Nonferrous Metals
基金
国家自然科学基金资助项目(59995442
50274017)
关键词
电磁铸造
电磁成形
液柱高度
磁场强度
electromagnetic casting
mathematical modeling
liquid-column height
magnetic intensity
