Various shape designed neodymium magnets

Various shape designed neodymium magnets

various shape designed neodymium magnets are the third generation of rare-earth permanent magnet, named "king magnet" for its great performance and competitive price.

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Product Description

various shape designed neodymium magnets

 

Description

Generator Magnet 

Material

Neodymium-Iron-Boron

Max. working temperature

Grade

Max. Operating Temperature

N35-N54

≤ 80°C

35M- 52M

≤ 100°C

33H-50H

≤ 120°C

33SH-46SH

≤ 150°C

30UH-42UH

≤ 180°C

30EH-38EH

≤ 200°C

28AH-33AH

≤ 230°C

Shape

Arc,Block ,Tile,Segment,Ring,Disc,etc

Size

Any size

Coating

Ni, Zn, Ni-Cu-Ni, Epoxy, Gold, Silver, phosphate, passivation

 

Brief introduction of Neodymium magnets (NdFeb) 

Ndfeb magnetic material, as the latest result of the development of rare earth permanent magnet materials, because of their excellent magnetic, known as "magnetic king". Its BHmax value 5-12 times of the ferrite magnets, 3-10 times of alnico magnets; Its coercive force equivalent to five to ten times of the same the size of ferrite magnets, 5-15 times of alnico magnets, its high magnetic potential, can suck up the equivalent of a weight of 640 times its own weight. 

Ndfeb magnetic material is an alloy of neodymium and iron oxide, etc, also called magnetic steel. As the main raw material of iron ndfeb magnet is very cheap, the reserves of rare earth neodymium is 10 to 16 times more than samarium, so the price also relatively much lower than samarium cobalt magnet.

Ndfeb has a very high magnetic energy and coercive force, high energy density at the same time.To make the advantages of ndfeb permanent magnet material in modern industry and the wide application of electronic technology can help the instruments and meters, electronic motor, magnetization equipments,the magnetic separation equipment minimized, lightweighted, thin. The advantage of ndfeb is cost-effective, good mechanical properties; Deficiency in NdFeB is low point Curie temperature, poor temperature characteristic poor, at high temperatures using magnetic loss is bigger, the highest working temperature is low. General is 80 degrees Celsius, after special processing of the magnet, the highest working temperature can reach 200 degrees Celsius.And Ndfeb material contains a lot of neodymium and iron, easy to rust.  it is easy to be pulverization corrosion, must adjust its chemical composition and take surface coating treatment methods to improve, to reach the requirements of practical application.Surface chemical passivation is currently one of the very good solution.

 

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