GB/T 31967.4-2025Test method for physical property of rare earth permanent magnetic materials - Part 4: Determination of compressive strength (English PDF)

1 Scope

This document describes a test method for the compressive strength of rare earth permanent magnet materials.

This document applies to the testing of compressive strength of rare earth permanent magnet materials.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 6379.2 Accuracy (correctness and precision) of measurement methods and results - Part 2.Determining the repeatability of standard measurement methods

Basic methods of sex and representation

GB/T 7314 Metallic materials - Compression test at room temperature

GB/T 8170 Rules for rounding off numerical values and the representation and determination of limiting values

GB/T 10623 Terminology for Testing Mechanical Properties of Metallic Materials

GB/T 16825.1-2022 Inspection and Calibration of Static Uniaxial Testing Machines for Metallic Materials - Part 1.Tensile and/or Compressive Testing

Inspection and calibration of the machine force measurement system

3 Terms and Definitions

The terms and definitions defined in GB/T 7314 and GB/T 10623, as well as the following terms and definitions, apply to this document.