IEC 60404-9:2018 磁性材料第9部分:电工钢带和电工钢片几何特性的测定方法

标准编号：IEC 60404-9:2018

中文名称：磁性材料第9部分:电工钢带和电工钢片几何特性的测定方法

英文名称：Magnetic materials - Part 9: Methods of determination of the geometrical characteristics of electrical steel strip and sheet

发布日期：2018-11-28

标准范围

IEC？60404-9:20 18规定了测定电工钢带和薄板以下几何特性的测量和试验方法:–？边缘波（波因子）；–？残余曲率；–？边缘外倾角；–？偏离剪切线（内应力）；–？毛刺高度。本文件适用于用于磁路结构的电工钢带和钢板，并符合IEC的B2、C21、C22和C23等级？60404-1.与上一版相比，此版本包括以下重大技术变更:a.修订术语和定义；b.测定边缘波浪（波浪系数）和边缘外倾角的试样长度规范；c.增加了用于确定剩余曲率的水平方法，以及告知垂直方法安全问题的注释；d.澄清毛刺高度以最大值为特征；e.增加了使用手持千分尺测定毛刺高度的测量程序。

IEC？60404-9:2018 specifies the measurement and test methods for the determination of the following geometrical characteristics of electrical steel strip and sheet:
–？edge wave (wave factor);
–？residual curvature;
–？edge camber;
–？deviation from the shearing line (internal stress);
–？burr height.
This document applies to electrical steel strip and sheet intended for the construction of magnetic circuits and corresponding to Classes B2, C21, C22 and C23 of IEC？60404-1.
This edition includes the following significant technical changes with respect to the previous edition:
a. revision of terms and definitions;
b. specification of the length of test specimens for the determinations of edge wave (wave factor) and edge camber;
c. addition of the horizontal method for the determination of residual curvature, and a note that informs about a safety concern of the vertical method;
d. clarification that the burr height was characterized by the maximum value;
e. addition of the measuring procedure using a hand-held micrometer to determine the burr height.

标准预览图