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Neodymium Magnet With Adhesive

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Latest News

Neodymium Magnet With Adhesive

Magnet  Type: ith Chinese/3M Adhesive

Material Grade: 35~N52

Working Temperature: 0~220°C

Surface Treatment: ikel,Zinc,Epoxy,Gold...

Magnetization Direction: xial,Diametral

Customization: cceptable

  • Product Details

Self-Adhesive Neodymium Magnets

Neodymium adhesive magnets offer high performance neodymium coupled with the ultra-strong power of Chinese adhesive or 3M adhesive.

Neodymium Iron Boron (NdFeB) or Neodymium magnets are extremely strong for their size. Shapes include rings, 

blocks, discs and custom. To prevent unwanted oxidation, neodymium magnets are usually finished with a zinc, 

nickel or epoxy coating.

Manufacturing - In general, the elements are melted together and milled into a powder that is dry-pressed to 

shape in the presence of a magnetic field.

The material is then sintered, ground to dimension, magnetized and tested. They are called “rare earth” magnets

because the elements of neodymium are classified as such in the lanthanides section of the Periodic Table of the 

Elements.


Parameter Name Parameter Values Unit
Curie Temperature 310380
Relative Recoil Permeability 1.021.05
Reversible Temperature Coefficient of Br (20~100) -0.09-0.13 %/
Reversible Temperature Coefficient of Hcj (20~100) -0.4-0.7 %/
Density 7.507.70 g/cm3
Vickers Hardness 550700
Bending Strength -0.09-0.13 MPa
Tensile Strength ≥80 MPa
Compressive Strength 800 ~1050 MPa
Electric Resistivity 150 μΩ·cm
Thermal Conductivity 810 W/(M·)
Coefficient of Thermal Expansion 
Parallel to the orientation
5 10-6/K
Coefficient of Thermal Expansion 
vertical to the orientation
-1.5 10-6/K
Young's Modulus 150200 GPa
Specific Heat20℃~320℃) 3.04.6 J/(g·k)
weight losslow weight loss products ≤2 mg/cm2


Mixing  1.Mix the ingredients. 
Melting  2.Dissolve the mixture at high temperature and prepare an alloy. 
Fine pulverization  3.Turn the alloy into fine powder. 
Molding in a magnetic field  4.When pressing the fine powder, apply a magnetic field to it and prepare 
a molded product of powder with aligned directions of magnetization.
Sintering and heat treatment  5.Sinter the product at about 1,100℃, and then subject it to heat treatment at 
about 600℃ to increase its magnetic characteristics. 
Processing 

6.Process the manufactured magnet base material and finish it into the product

 shape. 

Surface treatment 7.Subject the product to surface treatment in order to make it rustproof. 
Magnetization  8.Apply a magnetic field to give the magnet magnetism. 


These Adhesive Magnet are easily fixed in place with screws and are used for discreet door 

and drawer closures and for signage and displays.




Regarding of magnetic properties of Sintered NdFeB Magnet, Please click here.


For your different application,different grade/series for your choice.For application in normal life,N series is enough.

Different Series correspond to different working temperature.


Grade

Max Operating

 Temperatures

Series Grade Range
N 
Series
N35-N52 80°C 
M 
Series
35M-52M 100°C
H 
Series
33H-48H 120°C
SH
Series
30SH-48SH 150°C
UH
Series
30UH-42UH 180°C
EH
Series
30EH-38EH 200°C
AH
Series
30AH-35AH 220°C


Physical Properties & Application to Environment of the Coating 

Coating Material

Colour

Properties

Environment of Application

Thickness of
 Coating layer

Zinc

Blue, Black and rainbow etc

Compact, Stable and Homogeneous

With reasonalbe capability of anticorrosion

6um≤≤12

Nickel-Copper-Nickel

White and black

Light and Stable

Suitable for higher corrosive environment

15μm≤≤30pm

Phosphorization

Colorless or light gray

uniform thickness

short-term anticorrosion

-

Epoxy

Black and Gray

layer with certain luster, insurability

Suitable for higher corrosive environment

≥15μm

Parylene

transparency

uniform thickness, density pinholes-free and insurability

Excellent capability of anticorrosion especially for small items

0.1μm≤≤100pm

Ni+Cu+Epoxy

Black

Layer with certain luster

Excellent capability of

10-30μm

anticorrosion. Suitable for

hostile environment

salt spray resistance>300hr

Al+Epoxy

Black

Layer with certain luster

Excellent capability of

15-35μm

anticorrosion. Suitable for

hostile environment

salt spray resistance>650hr Widely used in new energy

auto magnets


For more details,welcome to contact with our sales engineers.                                             
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