GB/T 34494-2017 Active National standards

GB/T 34494-2017 Hydrogen decrepitation neodymium iron boron permanent magnetic powder

GB/T 34494-2017 Hydrogen decrepitation neodymium iron boron permanent magnetic powder

Publish Date: 2017-10-14 Implement Date: 2018-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 34494-2017

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Rare earth metals and their alloys

ICS Name: Other non-ferrous metals and their alloys

Publish Date: 2017-10-14

Implement Date: 2018-05-01

Pages: 7 pages

Scope

This standard specifies the requirements, test methods, inspection rules, and marking, packaging, transportation, storage, and quality certificates for hydrogen-broken neodymium-iron-boron permanent magnet powder. This standard applies to hydrogen-broken neodymium-iron-boron permanent magnet powder produced by powder metallurgy, which is used for the manufacture of sintered neodymium-iron-boron magnets.

Development Information

Word Count: 12 Thousand words Pages: 7 pages

Referenced Standards

GB/T 223.82-2007 Steel and iron—Determination of hydrogen content—Inert gas impulse fusion heat conductivity method GB/T 223.82-2018 Steel and iron—Determination of hydrogen content—Thermal conductivity/infrared method after fusion under inert gas GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 20170.1-2006 Test methods for physical characters of rare earth metals and their compounds—Determination for particle size distribution of rare earth compounds GB/T 29655-2013 Neodymium iron boron strip casting XB/T 617.1-2014 Chemical analysis methods for neodymium iron boron alloy—Part 1:Determination of total rare earth content—Oxalate gravimetry XB/T 617.7-2014 Chemical analysis methods for neodymium iron boron alloy—Part 7:Determination of oxygen and nitrogen contents—Impulse-infrared and impulse-thermal conductance absorption method GB/T 29655-2025 Strip-casting neodymium iron boron alloy flakes

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