GB/T 46478-2025 English PDF - Magnetizing method standard
Magnetizing method of permanent magnet
Standard Details
GB/T 46478-2025 (English Version)
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GB/T 46478-2025 (Chinese Version)
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Standard Introduction
This document provides the magnetization principles of permanent magnets, specifies the requirements for magnetization devices, test specimens and magnetization procedures, describes the test methods for different types of magnetization effects, and specifies the requirements for product magnetization reports.
This document applies to the technical magnetization of permanent magnets processed from permanent magnet materials including rare earth iron boron, rare earth cobalt, alnico, samarium-iron-nitrogen, and permanent ferrite magnets.
Standard Catalog
The standard consists of the following main sections:
Foreword
1. Scope
2 Normative References
3 Terms and Definitions
3.1 Single-Pole Magnetization
3.2 Multipole Magnetization
3.3 Magnetization Operating Parameters
4 Magnetization Principle
5 Magnetization Methods
5.1 Classification
5.2 Single-Pole Magnetization
5.3 Multipole Magnetization
5.4 Radial Magnetization
5.5 Halbach Array Magnetization
6 Magnetization Devices
6.1 Classification
6.2 Pulse Magnetic Field Magnetization Device
7 Test Specimens
8 Magnetization Procedures
8.1 Pulse Magnetic Field Magnetization Procedure
8.2 DC Magnetic Field Magnetization Procedure
8.3 Permanent Magnetic Field Magnetization Procedure
9 Test Methods for Magnetization Effect
9.1 Measurement Environment
9.2 Evaluation of Magnetization Effect
9.3 Magnetic Moment Measurement Method
9.4 Magnetic Field Distribution Measurement Method
9.5 Magnetic Declination Measurement Method
10 Test Report
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