Neodymium iron boron magnet piece of neodymium iron boron introduction: born in the early eighty's the third generation rare earth permanent magnet, NdFeB, is one of the world's strongest magnetism of permanent magnet material, can be divided into sintered Nd-Fe-B magnetic material and bonded NdFeB magnetic material. Compared with the iron boron magnetic materials of sintered neodymium, forming a material with a bonded NdFeB magnetic multipole orientation, characteristics;
Mainly used in micro motor. Neodymium iron boron permanent magnet for its excellent performance, abundant raw material and reasonable price is to the rapid development and wide application. Its main application in micro motor, permanent magnetic instrument, electronic industry, automobile industry, petroleum chemical industry, nuclear magnetic resonance apparatus, audio equipment, magnetic suspension system, magnetic transmission mechanism and magnetic therapy equipment etc.. Neodymium iron boron magnet is easy to rust, oxidation, so the neodymium iron boron magnet, its surface is usually required for electroplating, such as zinc, nickel, silver and gold, also can do the phosphating and spray epoxy resin to slow the rate of oxidation.
Other physical properties of neodymium iron boron magnet piece of neodymium iron boron:
Br temperature coefficient of -0.11%/ C
The density of 7.4g/cm3
Webster's temperature 600Hv
The tensile temperature 8.0kg/mm2
Specific heat of 0.12k Cak (kg C)
The elastic modulus 1.6x1011N/m2
Coefficient of lateral deformation of 0.24
The Curie temperature of 310-340 DEG C
The resistivity of 144 ohm.Cm
The flexural strength of 25kg/mm2
Thermal expansion coefficient of 4x10-6/ C
Thermal conductivity of 7.7cal/m.h. C
Stiffness 0.64N/m2
The compression rate of 9.8x10-12m2/N
IHc temperature coefficient of -0.60%/ C
Neodymium iron boron magnet sheet product detail display:
NdFeB production process:
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