ULTRASONIC SEPARATION OF MICRO-SIZED INCLUSIONSIN MOLTEN METAL
来源期刊：Acta Metallurgica Sinica2001年第5期
论文作者：X.Q.Bai J.C.He
Key words：ultrasound; molten metal; micro-sized non-metallic inclusion; numerical simulation; process parameter;
Abstract: The coagulation time and position of micro-sized non-metallic inclusions in molten metal during ultrasonic separation process were investigated, and the motion course of micro-sized non-metallic inclusions in an ultrasonic standing wave field was numerically simulated. The results of theoretical analysis and numerical simulation show that the movement of inclusions depends on the balance between the acoustic radiation force, effective buoyancy force and viscous drag force. It is presented that micro-sized inclusions, agglomerated at antinode-planes may be removed further with horizon tal ultrasound.``
X.Q.Bai1，J.C.He1
(1.Key Laboratory of National Education Ministry for Electromagnetic Processing of Materials, NortheasternUniversity, Shenyang 110004, China)
Abstract:The coagulation time and position of micro-sized non-metallic inclusions in molten metal during ultrasonic separation process were investigated, and the motion course of micro-sized non-metallic inclusions in an ultrasonic standing wave field was numerically simulated. The results of theoretical analysis and numerical simulation show that the movement of inclusions depends on the balance between the acoustic radiation force, effective buoyancy force and viscous drag force. It is presented that micro-sized inclusions, agglomerated at antinode-planes may be removed further with horizon tal ultrasound.``
Key words:ultrasound; molten metal; micro-sized non-metallic inclusion; numerical simulation; process parameter;
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