电工钢 ›› 2019, Vol. 1 ›› Issue (2): 29-32.

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取向硅钢涂层对噪音特性的影响

程祥威1,谢文亮2,杨朝2,朱业超1   

  1. 1.国家硅钢工程技术研究中心,湖北 武汉 430080;2.武汉钢铁有限公司 硅钢部,湖北 武汉 430083
  • 出版日期:2019-12-28 发布日期:2020-08-24

Effect of the coating on the noise characteristics of grainoriented silicon

CHENG Xiangwei1,XIE Wenliang2,YANG Chao2,ZhU Yechao1   

  1. 1.National Engineering Research Center for Silicon Steel, wuhan 430080,China;2.Silicon steel Department, Wuhan Iron and steel Co.,Ltd 430083,China
  • Online:2019-12-28 Published:2020-08-24

摘要: 取向硅钢片磁致伸缩是变压器噪音来源的主要因素,本文研究了取向硅钢片硅酸镁底层和磷酸盐涂层对磁致伸缩的影响。结果表明:取向硅钢表面的硅酸镁底层和磷酸盐涂层可降低取向硅钢的磁致伸缩;增加绝缘涂层的厚度可减少杂畴和90°畴,改善取向硅钢的噪音性能。

关键词: 取向硅钢, 磁致伸缩, 涂层, 变压器噪音

Abstract: The main source for the transformer noise is magnetostriction of grain-oriented silicon steel.In this paper, the effects of magnesium coating and phosphate coating on magnetostriction of grain-oriented silicon steel have been studied. The results showed that magnesium coating and phosphate coating could reduce the magnetostriction of grain-oriented silicon steel. Increasing the thickness of coating could decrease the hetero domain and 90 degree domain, and improve the noise characteristics of the oriented silicon steel.

Key words: grain oriented silicon, magnetostriction, coating, transformer noise