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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 11    No. 1    February 2001

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Physical simulation and theoretical analysis of migrating rate of
inclusions in aluminum melt in electromagnetic field
LI Tian-xiao(李天晓), SHU Da(疏  达), XU Zhen-ming(许振明),
SUN Bao-de(孙宝德), ZHOU Yao-he(周尧和)

School of Materials Science and Engineering, Shanghai Jiaotong University,
Shanghai 200030, P.R.China

Abstract:Simulation law and physical simulation were used to study the kinematic behaviorof inclusions in electromagnetic separation. It was found that velocity of spherical non-metallic particles shares different functions in different Reynolds number range. The function of spherical particle's velocity has been got by confirming the relationship between Reynolds number and resistance coefficient when Reynolds number is 0.2~10. For non-spherical particles, the moving behavior is influenced by shape and orientation while spherical coefficient has nothing to do with the velocity of irregular particles. The influence of orientation of cuboid particle on the electromagnetic expulsive force has been indicated by numerical computation.

 

Key words: electromagnetic separation; nonmetallic particles; physical simulation; migrating rate

ISSN 1672-7029
CN 43-1423/U

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