NdFeB material, as one of the most important application fields of rare earth materials, is one of the important basic materials supporting the modern electronic information industry and is closely related to people's life. With the popularization of communication equipment such as computers, mobile phones and car phones and the rapid development of energy-saving cars, the demand for high-performance rare earth permanent magnet materials is growing rapidly across the world. Neodymium magnets are the most commercialized magnets found at present and are called the king of magnets by people.
As for the manufacture of neodymium magnets, as many reports have said, it is impossible to leave China. This is because most Dy (dysprosium) mixed in the magnet is mined from China, but China has already begun to restrict its exports. Neodymium magnets are the magnets with the highest commercialized performance at present. They can be said to be the " king of magnets " in the magnet field. With extremely high magnetic performance, its maximum magnetic energy product (BHmax) is more than 10 times higher than that of permanent magnet ferrite.
Neodymium magnets have good machining performance: the working temperature can reach up to 200 degrees Celsius. Moreover, they are widely used thanks to their hard texture, stable performance and good cost performance. Due to their strong chemical activity, the surface coating must be treated (e.g. Zn and Ni plating, electrophoresis, passivation, etc.).
After using this kind of magnet, when talking about magnets, people will not say that "magnets are substances that adsorb iron, cobalt and nickel". However, it will be associated with the idea "all substances have magnetic induction", and only iron, cobalt and nickel have stronger magnetism and more obvious phenomenon of magnetic induction. Magnetic induction of other substances cannot be noticed without strong magnets.
Related News
May 10, 2021E-waste recycling is not the complete answer.Through e-waste recycling, once the service life expires, rare earth metals can be recovered from electronic products (such as mobile phones, laptop comput...view
November 19, 2020Sintered neodymium iron boron (Nd-Fe-B) is an important metal functional material. As the third generation rare earth permanent magnet material, it is called "magnet king" by scientific and technical ...view
June 10, 2019The manufacturing process of rubber coated rare earth magnets is similar to other products. In formula design, we must first determine the type, particle size and amount of magnetic powder. Next, the ...view
December 29, 2020Strong adhesive magnets can be made from materials that are ferromagnetic, such as iron and nickel. Magnet is just a general term, which refers to the magnetic objects that do not necessarily contain ...view