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A permanent magnet, ndfeb magnet with ferrite magnet

by:Newland     2020-04-22
The main advantage of ndfeb permanent magnet is sex price is high, and has good characteristics in mechanical direction; Not enough place or Curie temperature is too low, at the same time, temperature on the characteristics of more bad, and prone to pulverization corrosion, must through the adjust its chemical composition and take surface treatment methods ( Such as galvanized, etc. ) Chemical performance is improved, to achieve what we need the actual application requirements. The ferrite permanent magnet is a kind of has a ferromagnetic metal oxide. Electrical characteristics alone, the resistivity of ferrite permanent magnet than than the metal and alloy magnetic material to far more, and have a high dielectric properties. Ferrite permanent magnet magnetic can also performance in high frequency with high magnetic permeability. Therefore, ferrite permanent magnet has become a high-frequency weak current widely used in the field of magnetic material, not of metal. Belongs to the third generation of rare earth permanent magnet ndfeb permanent magnet materials, has small volume, light weight and the characteristics of the magnetic strength, is currently the best price-performance magnets, the magnetic field is known as the king of magnetic - A strong magnet. The advantages of high energy density makes permanent magnet ndfeb permanent magnet material in modern industry and obtained widespread application in electronic technology. Under the conditions of bare magnetic, magnetic force can reach about 3500 gauss. Say again ferrite permanent magnet ferrite or magnetic porcelain, is belong to nonmetallic magnetic materials, magnetic ferric oxide and one or more other metal oxide compound oxide ( Or is ferrite) 。 Magnetic usually is 800 - 1000 gauss, often used in the speakers, speakers and other devices. Ndfeb permanent magnet is the difference between the magnet and magnetic ferrite permanent magnet mainly include the following: 1. Ferrite magnet performance permanent magnet ndfeb permanent magnets. 2. On the price. Ferrite permanent magnet is much cheaper than the ndfeb permanent magnet magnet. 3. Ndfeb permanent magnet magnetic heat resistance is very good, ordinary ndfeb permanent magnets usually only 80 degrees, more than the working temperature of demagnetization will happen. 4. Ferrite permanent magnet stability is very good, it itself is oxide, is stable, ndfeb permanent magnet is alloy, and its easy oxidation, coating protection had to be done. www。 yirongciye。 com
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