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The Investigation and Design of the Inductor in the Electromagnetic Levitation Instrument

Author: ZhouJinXiang
Tutor: WangYongQing
School: Hebei University
Course: Detection Technology and Automation
Keywords: Electromagnetic levitation melting Inductor Suspension force Temperature Stability
CLC: TF111.5
Type: Master's thesis
Year: 2008
Downloads: 38
Quote: 1
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Abstract


Electromagnetic levitation melting technology is a container material handling and processing technology, the smelting metal wall contact, avoid pollution of the wall of the melting material. Can be used for materials testing and preparation of the special nature of high-purity substances. However, this technique there is a low efficiency, poor stability, and difficult to control temperature and other shortcomings. The subject of the core components of the electromagnetic levitation melting technology sensor research and design. This article describes the the levitation melting device sensor research progress. Theoretical Study on the sensor simulation, design, and determine the experimental process conditions, and experimentally verified. The main contents are as follows: First, according to the theoretical study of the MATLAB simulation analysis. Levitation force sensor of the present study set parameters deduced from substituting into the previous sample, suffered in the torque equation, the temperature of the sample superimposed on a DC magnetic field is not superimposed alternating magnetic field simulation by MATLAB programming. Obtained through the analysis of simulation results of the geometrical dimensions of the sensor, the power supply conditions the spherical metal specimen suspension force, temperature, stability and other parameters of the relationship. Study of the levitation force, the concept of suspended difficulty coefficient. The above analysis provides a theoretical guidance for experimental research. Medium frequency induction transformer 10g aluminum ball and iron ball sensor design experimental process conditions. Respectively identified The the suspension smelting ball and iron ball of 10 g of aluminum power frequency 200kHz/250kHz, maximum power 35kW/25kW, the suspension effective number of turns of the coil turns 7/5 turns, material for Φ6/φ8x 1.5mm copper tube water-cooled are no sub-water-cooled. Third, the suspension experimental study. Homemade sensor, 450kHz, 15kW high frequency power driver, respectively the suspension smelting experiments carried out on the the 10mm iron ball, 20 × 20 × 20mm3 aluminum block 6 samples. Experimental results show that 6 turns suspension coil with 2 turns stable conical sensor coil assembly suspended better. In short, the results of simulation on the basis of theoretical analysis and experimental results are basically consistent. By preliminary theoretical calculation and simulation to determine the process parameters. Theoretical guidance and simplify the experimental process to determine the best process parameters. In this study, the the levitation melting about 10g metal specimens sensor design has a certain reference value. Can be used for the preparation of special materials, testing, and many other fields.

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CLC: > Industrial Technology > Metallurgical Industry > Metallurgical Technology > Extractive metallurgy (Chemical Metallurgy) > Metal smelting > Electrometallurgy
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