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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 14    No. 1    February 2004

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Continuous cleaning of A356 alloy melt using
high frequency electromagnetic field
LI Ke(李 克)1, NI Hong-jun(倪红军)2, SHU Da(疏 达)1,
WANG Jun(王 俊)1, SUN Bao-de(孙宝德)1, ZHOU Yao-he(周尧和)1

1. State Key Laboratory of Metal Matrix Composites, Shanghai Jiaotong University,
Shanghai 200030, China;
2. Department of Mechanical Engineering, Nantong Institute of Technology, Nantong 226007, China

Abstract:A set of device for electromagnetic separation (EMS) was designed and applied to process the continuous flowing melt. Tensile test was employed to compare effect of electromagnetic separation with that of the traditional processes. Compared with filtration by ceramic foam filter and process without filtration, multiple process combined with filtration and electromagnetic separation can effectively remove most of inclusions with diameter finer than 10μm in A356 alloy casting, hence improve its tensile properties. After being processed by electromagnetic filtration, the tensile strength of A356 scrap is enhanced by 8.27%, approaching the level of fresh A356 alloy.

 

Key words: high frequency electromagnetic field; electromagnetic separating; melt cleaning; A356 alloy

ISSN 1672-7029
CN 43-1423/U

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