Influences of machining and acid etching on magnetic properties of soft magnetic composites
Influences of machining and acid etching on magnetic properties of soft magnetic composites
复制标题
机械加工和酸蚀对软磁复合材料磁性能的影响
DOI：
10.3233/jae-191283
复制
发表时间：
2019
影响因子：
0.6
通讯作者：
R. Akaki
中科院分区：
文献类型：
--
作者：
Yuto Higashigawa;Yasuhito Takahashi;K. Fujiwara;Masahiro Aoyama;R. Akaki
软磁复合材料（SMC）是通过具有绝缘涂层的铁粉的压缩成型获得的磁性材料，并且适合于具有复杂结构的电机的芯。众所周知，由于材料表面绝缘层的短路，机械加工工艺会使其磁性能劣化。通常，进行酸蚀刻处理以改善磁性能的劣化。本文首先测量了经过不同浸泡时间酸蚀处理的SMC环形试样的电阻率。其次，测量了样品的磁性能，并研究了机械加工工艺和酸蚀刻处理对SMC磁性能和电性能的影响。
Soft magnetic composites (SMCs) are magnetic materials obtained by compression molding of iron powders with an insulating coating and are suitable for a core of a motor having a complicated structure. It is known that its magnetic property is deteriorated by machining process due to the short circuit of the insulated layer on the material surface. In general, the acid etching treatment is performed to improve the degradation of the magnetic properties. In this paper, first the resistivity of the ring specimen of the SMC applying the acid etching treatment for a different immersion time is measured. Next, the magnetic properties of the specimen are measured, and the effect of the machining process and the acid etching treatment on the magnetic and electric properties of the SMC is investigated.