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Effect of induction heat on Initial Solidification During Electromagnetic Continuous Casting of Steel

Journal of Iron and Steel Research International 2010年第7期17卷 13-18页

作者： WANG Hong-ming LI Gui-rong Materials Science and Enginee1'ing School Jiangsu University Zhenjiang 212013 Jiangsu China

A three-dimensional finite element model of electromagnetic field and temperature field was developed to investigate the effects of induction heat of high frequency electromagnetic field on the early solidification process of molten *** results show that the increases of exciting current frequency make the effects of induction heat on solidification increase ***,the effects of induction heat on solidification process are weakened sharply with the increase of casting ***,when the casting speed exceeds a certain value,the effects of induction heat on solidification process are nearly negligible.

关键词： high frequency electromagnetic field induction heat initial solidification

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Feasibility Research on Application of a High Frequency induction heat to Line heating Technology

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Journal of Marine Science and Application 2011年第4期10卷 456-464页

作者：张雪彪杨玉龙刘玉君 School of Naval Architecture and Ocean Engineering Dalian University of Technology

The purpose of this paper is to investigate the feasibility of high-frequency induction heat for the line heating process through a series of experimental studies and numerical calculations. The results show that the heating temperature of induction heating meets the demands of steel plate bending, and the deformation of a steel plate heated by induction heating can achieve the same effect as flame heating. Meanwhile, the finite element model of moving induction heating of the plate is developed, and the comparison of the residual strain fields and transverse shrinkage between these two kinds of heating shows that great similarity has been achieved.

关键词： ship engineering line heating induction heat transverse shrinkage magnitude

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A susceptor with a ^-shaped slot in a vertical MOCVD reactor by induction heating

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Journal of Semiconductors 2014年第9期35卷 11-15页

作者：李志明李海玲甘小冰江海鹰李金屏付小倩韩延彬夏英杰尹建芹黄艺美胡仕刚 Shandong Provincial Key Laboratory of Network Based Intelligent Computing School of Information Science and Engineering University of Jinan Shandong College of Electronic Technology College of Management Shenzhen University School of Information and Electrical Engineering Hunan University of Science and Technology

By using the numerical simulation for the temperature field in the metal organic vapor deposition （MOCVD） reactor by induction heating, it is found that the temperature distribution in the conventional cylinder-shaped susceptor is nonuniform due to the skin effect of the induced current, which makes the temperature distribution of the wafer nonuniform. Therefore, a novel susceptor with a A-shaped slot is proposed. This slot changes the mode and the rate of the heat transfer in the susceptor, which improves the uniformity of the temperature distribution in the wafer. By using the finite element method （FEM）, the susceptor with this structure for heating a wafer of four inches in diameter is optimized. It is observed that the optimized susceptor with the A-shaped slot makes the uniformity of the temperature distribution in the wafer improve by more than 85%, and a good uniformity of temperature distributions is kept under different wafer temperatures, which may be beneficial to the film growth.

关键词： induction heat MOCVD finite element analysis temperature field

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