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What are the difference between permanent magnet ferrite magnets and ndfeb magnet?

by:Newland     2020-04-08
Section introduces the use of ndfeb magnet for everybody need to pay attention to what issues? Under this section is to introduce the difference between ndfeb magnets and ferrite magnet: 1. Stability of ferrite is very good, it itself is oxide, is stable, ndfeb alloy, and its easy oxidation, coating protection must do. 2. On the price. Ferrite is much cheaper than the ndfeb magnet. 3. Ferrite magnet performance ndfeb. 4. Ndfeb magnet heat resistance is very good, ordinary ndfeb usually only 80 degrees, more than the working temperature of demagnetization will happen. Ferrite magnet is a ferromagnetic metal oxide. In terms of electrical characteristics, the resistivity of ferrite magnetic material is much bigger than metals and alloys, but also high dielectric properties. Ferrite magnetic can also performance in high frequency with high magnetic permeability. Therefore, ferrite has become a high-frequency weak current widely used in the field of magnetic material, not of metal. The nonmetal magnetic materials, ferric oxide and one or more other metal oxide compound oxides. Magnetic usually is 800 - 1000 gauss, often used in the speakers, speakers and other devices. The advantage of ndfeb magnet is cost-effective, good mechanical properties; Lack of Curie temperature in low point, temperature characteristic is poor, and is easy to be pulverization corrosion, must through the adjust its chemical composition and take surface treatment methods to improve, to reach the requirements of practical application. Ndfeb belongs to the third generation of rare earth permanent magnet materials with the characteristics of small volume, light weight and strong magnetic, is currently the best price-performance magnets, the magnetic field is known as the king of magnetic. The advantages of high energy density of nd-fe-b materials in modern industry and obtained widespread application in electronic technology. Under the conditions of bare magnetic, magnetic force can reach about 3500 gauss. A: manufacturer of magnet is how to keep the magnet price? Next article: use the ndfeb magnets need to pay attention to what issues?
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