GB/T 43489-2023 Active National standards

GB/T 43489-2023 Sintered neodymium iron boron permanent magnets—Steady state damp heat tests

Publish Date: 2023-12-28 Implement Date: 2024-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 43489-2023

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Analysis methods for rare metals and their alloys

ICS Name: Other non-ferrous metals and their alloys

Publish Date: 2023-12-28

Implement Date: 2024-07-01

Pages: 15 pages

Scope

This document describes the method for conducting constant humidity and heat tests on sintered neodymium-iron-boron permanent magnets.
Note: According to the steam pressure in the test box during the test, the constant humidity and heat tests on sintered neodymium-iron-boron permanent magnets are divided into ordinary constant humidity and heat tests and high-pressure steam constant humidity and heat tests. Among them, high-pressure steam constant humidity and heat tests are further divided into HAST tests and PCT tests.
This document is applicable to constant humidity and heat tests on sintered neodymium-iron-boron permanent magnets with coatings, including metal protective layers, coatings, conversion film layers, and composite protective layers; it is also applicable to constant humidity and heat tests on sintered neodymium-iron-boron permanent magnets in an open-circuit state before measuring the irreversible loss of magnetic flux.