1. About to NdFeB Magnets

NdFeB Magnets is the most powerful permanent magnet in modern magnets.Its magnetic potential is so high that it can pull up to 60 times its own weight.The mechanical properties of Ndfeb magnets are better than other magnets, easier to cut and drill and complex shape processing.The disadvantage is that the temperature performance is not good, the magnetic loss is large when used at high temperature, and the maximum operating temperature is low.Generally about 80 degrees Celsius, after special treatment, its working temperature can reach 200 degrees Celsius.Because the material contains a large amount of neodymium and iron, so easy corrosion is also a major weakness. So the Ndfeb magnet must be treated with surface coating. Can be electroplated nickel (Ni), zinc (Zn), gold (Au), chromium (Cr), Epoxy resin (Epoxy), etc.Ndfeb has the advantages of high magnetic energy product and coercive force, and high energy density, so that Ndfeb permanent magnetic materials have been widely used in modern industry and electronic technology, so that instrumentation, electroacoustic motor, magnetic separation and magnetization of equipment such as miniaturization, lightweight, thin become possible.

2.Adsorption strength · Superficial magnetic

1）The stronger the adsorption surface area is, the greater the adsorption capacity.

2) e.g:

3. The influence of high temperature environment on magnet

The magnetic strength of NdFeb magnet is closely related to the change of ambient temperature. Within the operating temperature range, the corresponding magnetic force will weaken with every 1℃ rise in temperature, and most of it can be restored to the original level after cooling, which is reversible. If the temperature reaches the Curie temperature, the molecules inside the magnet will move violently and demagnetization will occur, which is irreversible.

Comparison of high temperature resistance

According to the size of the magnet (shape and thickness) of the heat permeability is different, the same material, the direction of magnetization if relatively thick heat resistance is relatively high, if thin heat resistance is relatively low. The heat resistance temperature marked in the following example is a reference value for the material characteristics, which may vary depending on the actual situation.

What I Can do

1、Variety of shapes

Square, rectangle, circular, annular, polygon, such as diamond polygon.

2、Working size

3、Surface Protection

4、Magnetic Properties 

You need to do

1. Magnet performance.

2. Dimensions and tolerances.

3. Do you want to magnetize? If you want to magnetize, axial,Radial?

4. The maximum temperature of the magnet working environment.

5. Order quantity.

6. Surface treatment. Galvanized, nickel plated or other?

7. If you have any other special requirements, please let me know.

8. Or Provide drawings.