磁性材料.第1部分:分类

[中文适用范围]： 本部分IEC 60404旨在对市场上可用的磁性材料进行分类。 术语“磁性材料”指的是那些应用需要具有铁磁或亚铁磁特性的物质。 在本文件中，磁性材料的分类基于普遍认可的两种主要产品组： - 软磁材料（矫顽力 ≤1000 A/m）； - 硬磁材料（矫顽力 >1000 A/m）。 在这些主要组别中，分类在适当时考虑以下特性： - 主要合金元素以及材料的冶金状态和物理特性； - 在可能和方便的情况下，识别这些特性之间的关系。 由于不同的材料经常可以用于相同的应用，取决于所需的特性，因此基于特定应用领域的分类不能适用于所有材料。 [外文原描述]： IEC 60404-1:2016 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 60404-1:2016(E) is intended to classify commercially available magnetic materials. The term "magnetic materials" denotes substances where the application requires the existence of ferromagnetic or ferrimagnetic properties. The classification of magnetic materials is based upon the generally recognized existence of two main groups of products: - soft magnetic materials (coercivity less than or equal to 1 000 A/m); - hard magnetic materials (coercivity greater than 1 000 A/m). This edition includes the following significant technical changes with respect to the previous edition: a) Removal of all tables and values describing typical properties of the material to be consistent with the aim of the document to be a classification and not a specification. b) Enlargement of the Ni content for the classes E1 and E3. c) Enlargement of the Co content for the classes F3. d) Addition of a new class: U5 bonded rare earth-iron-nitrogen magnets.