Neodymium all), also known as ndfeb magnets, is a general term for powerful magnets. Its chemical formula is Nd2Fe14B, an artificial permanent magnet that is by far the strongest magnetic force.Its BHmax value is 5-12 times that of ferrite magnets and 3-10 times that of alnico magnets. Its coercivity is equivalent to 5-10 times that of ferrite magnets, 5-15 times that of alnico magnets, and its potential magnetic energy is so high that it can lift heavy objects equivalent to 640 times its own weight. As the main raw material of ndfeb magnets is very cheap, the storage of rare earth neodymium is 10-16 times more than that of samarium, so its price is much lower than that of samarium cobalt magnets.