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N35 Sintered Ndfeb Magnet , NdFeB Rare Earth Magnet

Place of Origin: Zhejiang

Company Profile

Location: Hangzhou, Zhejiang, China (Mainland)
Business Type: Manufacturer
Main Products: Cast Alnico Magnet

Product Description

N35 Sintered Ndfeb Magnet , NdFeB Rare Earth Magnet 

 

Quick Detail:

 

1.Density – 7.4-7.6 g/ cm3

2.Manufacturing process –sintering (most common), injection molding, and compression bonding.

3.Various shapes - blocks, bars, discs, rings, arc, segments, sectors, fan shape, cylinders, etc.

4.Prone to oxidation, plating is recommended ( Ni-CU-Ni, Zn,Au,Epoxy, etc)

 

Neodymium Magnets (Neodymium Iron Boron Magnets), also known as NdFeB or Neo magnets, are the most widely-used type of rare earth magnet. It is the strongest type of permanent magnet made from an alloy of Neodymium, Iron, and Boron with the Nd2Fe14B tetragonal crystalline structure. It has replaced other types of magnets in many applications in modern products that require strong permanent magnets, such as motors in cordless tools, hard disk drives, and magnetic fasteners.

 

Physical Properties of NdFeB Magnet

Density(g/cm3)

7.3-7.5

Curie Temperature ()

320

Max. Operating Temperature ()

220

Relative Permeability

1.05

Flexural Strength (N/nm2)

250

Compressive Strength (N/nm2)

1100

Tensile Strength (N/nm2)

75

Hardness (Hv)

550-650

Temperature Coefficient of Br (%/)

-0.09~-0.12

Temperature Coefficient of Hcj (%/)

-0.50~-0.65

 

 

Applications:

 

Sensors and switches 

Linear actuators  

Microphone assemblies    

Magnetic separators  

DC and servo motors   

Speaker Parts

Printers  

Magnetic hooks 

Computer rigid disc drives  

Beam controls  

Intelligent toys  

MRI/NMR

 

 

Performance of Sintered Neodymium Magnets

 

Grade

Residual Induction

Coercive Force

Intrinsic Coercive Force

Maximum Energy Product

Maximum Operating

(Br)

(Hc)

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