Effect of annealing on magnetic properties and core magneto-induced vibration of amorphous alloy

doi:10.13251/j.issn.0254-6051.2020.04.036

Abstract

Abstract: In order to study the effect of annealing treatment on the magnetic properties and the vibration of amorphous core, the magnetization and magnetostriction properties of amorphous strip before annealing and amorphous core after annealing were measured by using the magnetic property measuring equipment. Based on the measured data, the magnetic mechanical multi physical field coupling model of amorphous roll core was established. The flux density distribution and vibration of the two kinds of iron core before and after annealing were calculated and compared with the vibration measured data of the prototype.The results show that annealing can increase the saturation magnetic induction strength of the amorphous alloy, improve the magnetic permeability, and reduce the magnetostrictive coefficient, thereby effectively suppressing the transformer core vibration.

Key words: amorphous alloy, measurement of magnetic properties, electromagnetic vibration

CLC Number:

TM15

Shi Yongheng, Zhu Lihua, Han Tianheng, Li Weizheng. Effect of annealing on magnetic properties and core magneto-induced vibration of amorphous alloy[J]. Heat Treatment of Metals, 2020, 45(4): 171-175.

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