How long do neodymium magnets last

NdFeB magnets, also known as NdFeB magnets, are tetragonal crystals formed of neodymium, iron, and boron (Nd2Fe14B). Neodymium magnets are the most magnetic permanent magnets available today and the most commonly used rare earth magnets.


How long can the magnetic properties of NdFeB magnets last?

NdFeB magnets have quite high coercive force, and there will be no demagnetization and magnetic changes under natural environment and general magnetic field conditions. Assuming the environment is right, the magnets will not lose much performance even after prolonged use. So in practical application, we often ignore the influence of time factor on magnetism.


What factors will affect the service life of neodymium magnets in daily use of magnets?

There are two factors you directly affect the service life of the magnet.

The first is heat. Be sure to pay attention to this problem when purchasing magnets. N series magnets are widely used in the market, but they can only work in an environment below 80 degrees. If the temperature exceeds this temperature, the magnetism will be weakened or completely demagnetized. Since the magnet's external magnetic field reaches saturation and has formed dense magnetic induction lines, when the external temperature rises, the regular motion form inside the magnet is destroyed. It also reduces the intrinsic coercive force of the magnet, that is to say, the large magnetic energy product changes with the temperature, and the product of the corresponding Br value and H value also changes accordingly.

The second is corrosion. Generally, the surface of neodymium magnets will have a layer of coating. If the coating on the magnet is damaged, water can easily enter the inside of the magnet directly, which will cause the magnet to rust and subsequently lead to a decline in magnetic performance. Among all magnets, the corrosion resistance strength of neodymium magnets is higher than that of other magnets.



I want to buy long-life neodymium magnets, how should I choose a manufacturer?

Most of the neodymium magnets are produced in China. If you want to buy high-quality products, it depends on the strength of the factory. In terms of production technology, testing equipment, process flow, engineering assistance, QC department and quality management system certificates can all meet international standards. Fuzheng just meets all the above conditions, so it is right to choose us as the manufacturer of female neodymium magnets.

Post time: Jan-09-2023