软磁铁氧体磁芯术语和命名第1部分:物理不规则性术语和尺寸参考

[中文适用范围]： 本部分IEC 60401为软铁氧体（磁性氧化物）磁芯提供了最常见的表面、块体和形状不规则性的术语表。大多数不规则性均以图形方式示例作为视觉辅助。附件A还提供了一般性建议，用于制定一致的方案来指定不规则性的确切位置，该方案结合了位置的一般名称与指定位置的更详细限定词。在编制技术文档、不规则性检查规范等时，本文件也可作为术语参考。本文件还提出了一种定义软铁氧体磁芯形状主要物理属性命名方法的方法。本文件的目的是便于制造商、规范制定者和用户在图纸、表格和目录规格表上描述磁芯尺寸时，统一使用尺寸字符。 [外文原描述]： IEC 60401-1:2020 provides a nomenclature of the most frequent surface, bulk and shape irregularities relevant to cores made of soft ferrites (magnetic oxides). Most irregularities are graphically exemplified as visual aids. A general recommendation is also given in Annex A for a consistent scheme for specifying the exact location of the irregularity, combining a general name for the location with more detailed qualifiers of the specified location. This document can also be useful as a terminology reference when preparing technical documentation, irregularity inspection specifications, etc. This document also presents a method for defining the designation nomenclature for the major physical attributes of soft ferrite core shapes. The purpose of this document is to facilitate uniform usage of dimensional characters by manufacturers, specifiers, and users when describing core dimensions on drawings, in tables, and on catalogue specification sheets. This second edition cancels and replaces the first edition of IEC 60401-1 published in 2002 and the second edition of IEC 60401-2 published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous editions of IEC 60401-1 and IEC 60401-2: - added the surface irregularity term “pores” in 4.3.1.6; - added the surface irregularity term “scratch” in 4.3.6.3; - removed the surface irregularity term “crater” in 4.1.5 of IEC 60401-1: 2002; - removed the bulk irregularity terms “superpores” in 5.1, “inclusions” in 5.2, “internal stratification” in 5.3 and “internal crack” in 5.4 of IEC 60401-1: 2002; - removed the contents related to “yoke ring cores” in 7.1.3 and 7.4 of IEC 60401-1:2002; - replaced the surface irregularity term “stratification” with “lamination” in 4.3.4.7; - replaced the location related terms “upper surface of back” with “bottom surface” and “lower surface of back” with “back surface” in Figure A.1; - changed Clause 7 of IEC 60401-1:2002 into Annex A.