基于电磁热耦合的感应加热65Mn带钢有限元仿真

doi:10.11896/cldb.20110208

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Abstract Electromagnetic induction heating is an electromagnetic field produced by alternating current, and alternating magnetic field can cause alternating electric field. Electromagnetic induction heating is a complex process involving electric field, magnetic field, temperature field, stress strain and phase transition. It has the advantages of high heating efficiency, automatic control, less environmental pollution and shorter heating period. According to Maxwell's equations and temperature differential equations, the finite element mathematical model of electromagnetic field and temperature field coupling was established. The electromagnetic and thermal coupling mathematical model of 65Mn tape-steel with a cross section of 3 mm×12 mm was established by using finite element software Maxwell 3D. The influences of magnetic field intensity, magnetic flux density, current density and temperature field at different current frequencies, alternating current and different positions of tape-steel were analyzed. It is found that the magnetic field intensity, magnetic flux density, current density and temperature field of inductively heated 65Mn tape-steel are further increased with the increase of the current frequency and alternating current of the electromagnetic induction coil, and the magnetic field intensity, magnetic flux density and current density of the upper and lower parts of the tape-steel are larger than those of the middle part. At the same time, the electromagnetic induction heating equipment was used to experiment the 65Mn tape-steel, studying the temperature changes of the core and surface of the steel, as well as the microstructure changes of the cross section of the tape-steel and the microhardness curve. The results show that under the same current frequency and different alternating current, the current penetration depth is about 115 μm, which is basically unchanged, because the current penetration depth is only related to the current frequency, conductor permeability and resistivity. When the alternating current of the induction coil is 210 A, the 65Mn tape-steel is partly austenitized after induction heating, and the microhardness in the skin effect area is low.

Key words： 65Mn tape-steel induction heating electromagnetic heat finite element simulation microstructure

Published: 25 June 2022 Online: 2022-06-24

CLC number:	TG113
	TG161

Fund:National Science and Technology Major Project of the Ministry of Science and Technology of China(2019ZX04004-001,2018ZX04020001).

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	ZHANG Pengfei
	WANG Decheng
	CHENG Peng
	SHAO Chenxi

Cite this article:

ZHANG Pengfei,WANG Decheng,CHENG Peng, et al. Finite Element Simulation of Induction Heating 65Mn Tape-steel Based on Electromagnetic Thermal Coupling[J]. Materials Reports, 2022, 36(12): 20110208-6.

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http://www.mater-rep.com/EN/10.11896/cldb.20110208 OR http://www.mater-rep.com/EN/Y2022/V36/I12/20110208

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