Neodymium magnets are now widely used in the electronics industry, automotive industry, petrochemical industry, micro-motors, permanent magnet meters, nuclear magnetic resonance devices, sensors, audio equipment, magnetic levitation systems, magnetic transmission mechanisms and magnetic equipment. Because Neodymium magnets have excellent performance, abundant raw materials, and reasonable price, they have been promoting the widespread and rapid propagation of neodymium magnets.

So, what should we pay attention to when buying neodymium magnets, how should we judge the quality?

First of all, we need to know what material combination it is made of. The main raw materials of Neodymium Permanent magnets are rare earth metal lanthanum (Nd) 32%, metallic element iron (Fe) 64% and non-metallic element boron (B) 1% (a small amount of yttrium (Dy), lanthanum (Tb), cobalt (Co), niobium (Nb), gallium (Ga), aluminum (Al), copper (Cu) and other elements). The Neodymium ternary permanent magnet material is based on a Nd2Fe14B compound, and its composition should be similar to the compound Nd2Fe14B. However, when the Nd2Fe14B is completely distributed, the magnetic properties of the magnet are very low, even without magnetism. It is only in the actual magnet that the content of niobium and boron is higher than that of the Nd2Fe14B compound to obtain better permanent magnet properties. The characteristics of Neodymium determine the quality and value of Neodymium magnets. From the main raw materials of Neodymium, Neodymium is a kind of magnetic material, its performance is extremely high, the price is moderate, and the strength is also high, but It is not resistant to high temperatures and corrosion.

Since the combination of Neodymium materials is very reasonable, it makes Neodymium permanent magnets, eternal magnetic properties. Neodymium magnets have high coercivity, and the magnetic field of the general conditions of natural environment and magnetic loss does not change or lose magnetism. After long-term use, the magnetic loss is not too great, so it is generally used in the process of using, the general influence of the time factor on the magnetic properties. Neodymium magnets have such high magnetic properties that they are more widely available, and Neodymium magnet manufacturers are also increasing. Now that we understand the performance of the Neodymium magnet, we can use it to identify its good or bad, so that the Neodymium magnet can be purchased reasonably.

We can use some iron products to test the magnetic properties of Neodymium. If the material is good enough, it will be very magnetic. The attraction of natural magnets will be very large. From this we can judge whether there is a situation of cutting corners. If we want to buy Neodymium magnets on a large scale, we can also judge the magnetic properties by testing the magnetic properties.

Neodymium magnets mainly have three parameters: Residual Induction, unit Gauss, after removing the magnetic field from saturation, the remaining magnetic flux density represents the magnetic field strength of the magnet; coercive force Hc (Coercive Force), the unit Oersted, puts the magnet in a reverse applied magnetic field. When the applied magnetic field increases to a certain intensity, the magnet's magnetism disappears. The ability to resist the applied magnetic field is called coercivity, which represents a measure. Anti-demagnetization ability; magnetic energy product BHmax, unit Gauss-Oersted, is the magnetic field energy produced by a unit volume of material, which is a physical quantity of energy that the magnet can store. We can check the three values in a standard way so that we can know the quality of Neodymium magnets.

When purchasing Neodymium magnets, we can test them with professional test equipment. Sometimes some equipment requires high-performance neodymium iron boron magnets, neodymium iron boron magnets, then you need to improve the quality, naturally should pay attention to these issues when buying.