Meniscus shape control of molten pure aluminum by electromagnetic force.
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概要
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The fundamental phenomena of Electromagnetic Casting (EMC) were investigated. The magnetic flux density, current density and meniscus shape were measured under the electromagnetic force provided to the molten aluminum by 10 turns coil. The magnetic flux density in the coil without load is directly proportional to the voltage, reaching maximum 0.09 tesla. The induced current flows mainly inside of skin in the molten metal (skin effect), and the electric power consumed in the molten aluminum is about 2kW, and the electric power efficiency is about 10%. The meniscus height is directly proportional to square of the voltage, and the surface tension due to the strong oxide film effectively supports the molten aluminum. The meniscus height decreases when the screen is inserted. It decreases to 80% (Al), 70% (Brass), 50% (cast iron) and 45% (SUS) of the height prior to insertion and it is due to electric conductivity of screen.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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