GB/T 19396-2025Terbium-dysprosium-iron magnetostrictive materials (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document replaces GB/T 19396-2012 "Terbium Dysprosium Iron Giant Magnetostrictive Materials". Compared with GB/T 19396-2012, except for the structural adjustment In addition to the integration and editorial changes, the main technical changes are as follows.

a) The terms and definitions have been changed (see Chapter 3, Chapter 3 of the 2012 edition);

b) The grade designation method (see Chapter 4, 4.1 of the 2012 edition) and the parallel magnetostriction coefficient (see 5.1 of the 2012 edition) have been changed. 4.1);

c) Added the requirements for relative magnetic permeability and magnetostriction non-uniformity in the physical properties (see 5.2), and changed the requirements for compressive strength in the physical properties.

Density index, deleted the density requirement in physical properties (see 5.2, 4.3 of the 2012 edition);

d) The requirements for dimensions and their allowable deviations have been changed (see 5.3, 4.2 of the 2012 edition);

e) Added the test methods for relative magnetic permeability and magnetostriction non-uniformity in physical properties (see 6.2), and deleted the test method for density.

Law (see 5.3 of the 2012 edition);

f) The provisions of the inspection items have been changed (see 7.3, 6.3 of the 2012 edition);

g) The sampling method has been changed (see 7.4, 6.4 of the 2012 edition);

h) The determination of test results has been changed (see 7.5, 6.5 of the 2012 edition);

i) The packaging, labeling, transportation and storage methods have been changed (see 8.1, 7.1 and 7.2 of the 2012 edition);

j) The accompanying documents have been modified (see 8.2, 7.3 of the 2012 edition);

k) The instruction manual has been deleted (see 7.4 of the 2012 edition);

l) Added the test methods for magnetostriction non-uniformity and magnetostriction temperature coefficient (see Appendix C);

m) Added the measurement of the overall magnetostriction coefficient of terbium-dysprosium ferromagnetostrictive material - laser displacement measurement method (see Appendix D).

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed and coordinated by the National Rare Earth Standardization Technical Committee (SAC/TC229).

This document was drafted by: Baotou Rare Earth Research Institute, Beijing University of Science and Technology, China Iron and Steel Research Institute Co., Ltd., China State Shipbuilding Corporation The 715th Institute, Youyan Rare Earth High-Tech Co., Ltd., China Institute of Metrology, Hebei University of Technology, Beijing Zhongke Sanhuan High-Tech Co., Ltd., Zhejiang University, Baotou Rare Earth New Materials Technology Research and Development Center, Xi'an Jiaotong University, Guorui Kechuang Rare Earth Functional Materials (Ganzhou) Co., Ltd., Shenyang University of Technology, China Northern Rare Earth (Group) High-Tech Co., Ltd., Xinfeng County Baotou Steel Xinli Rare Earth Co., Ltd.

Co., Ltd. and Youyan Rare Earth New Materials Co., Ltd.

The main drafters of this document are: Qiao Yu, Hao Hongbo, Shi Lanfu, Yan Mi, Liu Jinghua, Li Jiheng, Mou Xing, Fan Jinliang, Liu Yongping, Yang Yuanfei, Hou Ruifen, Liu Heyan, Chen Zhian, Jin Jiaying, Song Yicheng, Ma Tianyu, Wang Weisheng, He Zhenghua, Li Tingting, Zhang Xiangliang, Peng Haijun, Gao Xuexu, Wang Tingting, Gao Feng, Yao Te, Liang Yuping, Xiao Qin, Zhi Guolei.

This document was first issued in 2003, revised for the first time in 2012, and this is the second revision.

Terbium-dysprosium ferromagnetostrictive material

1 Scope

This document specifies the grades, technical requirements, inspection rules and packaging, marking, transportation, storage and accompanying documents of terbium dysprosium ferromagnetic strictive materials.

The corresponding test methods are described.

This document applies to terbium dysprosium ferromagnetostrictive materials produced by directional solidification process, which are mainly used in sonar transducers, ultrasonic transducers, Active shock absorbers, fuel injection valves, sensors and other fields.

2 Normative references

GB/T 1958

GB/T 2828.1-2012

GB/T 7314

GB/T 9637

GB/T 13012

GB 39176

3 Terms and definitions

The terms and definitions defined in GB/T 9637 and the following apply to this document.