Mathematical model of electromagnetic elimination in tubule with high frequency magnetic field

被引：2

作者：

郭庆涛 ^{[1
]}

金俊泽 ^{[1
]}

李廷举 ^{[1
]}

王同敏 ^{[2
]}

张琦 ^{[1
]}

曹志强 ^{[1
]}

机构：

[1] State Key Laboratory of Materials Modification by Laser,Ion and Electron Beams,School of Materials Science and Engineering,Dalian University of Technology,Dalian 116024,China

[2] State Key Laboratory of Materials Modification by Laser,Ion and Electron Beams,School of Materials Science and Engineering,Dalia n University of Technology,Dalian 116024,China

来源：

Transactions of Nonferrous Metals Society of China | 2006年 / S1期

基金：

中国国家自然科学基金;

关键词：

electromagnetic elimination; non-metallic inclusions; elimination time; elimination efficiency;

D O I：

暂无

中图分类号：

TG115 [金属的分析试验（金属材料试验）];

学科分类号：

摘要：

In order to find the ways to improve the elimination efficiency with high frequency magnetic field, a mathematical model of electromagnetic elimination (EME) in the tubule with high frequency magnetic field was set up. The calculated results show that by ignoring the flow of molten metal, when the surface magnetic induction intensity of the metal (B0) is 0.03 T and the diameter of the tubule is 8 mm, the non-metallic inclusions with 30 μm diameter can be wiped off in 7 s from the center of the molten aluminum, whereas the elimination time of the 5 μm non-metallic inclusions is more than 240 s. When B0 is 0.03 T, the diameter of the tubule is 8 mm and elimination time is more than 30 s, the elimination efficiency of 5μm, 10 μm and 30 μm non-metallic inclusions is about 60%, 90% and 100%, respectively, the elimination efficiency increases with the decreasing diameter of the tubule. It can be concluded that increasing the magnetic induction intensity or decreasing the diameter of the tubule can decrease the elimination time and improve the elimination efficiency in EME with high frequency magnetic field.

引用

页码：47 / 51

页数：5

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