NdFeB: The Charm and Wide Application of Modern King of Permanent Magnets
NdFeB
NdFeB, as a kind of rare-earth permanent magnetic material, consists of three elements: neodymium, iron and boron, and is known as the "king of modern permanent magnets" for its excellent magnetic properties and wide range of applications. So, what is the charm of NdFeB? In what fields does it play an important role?
First, the excellent performance of NdFeB
NdFeB has the advantages of high remanent magnetic density, high coercivity and high magnetic energy product, and its magnetic properties far exceed those of traditional magnetic materials. In addition, NdFeB magnets are not only strong in magnetism, but also can pick up 1000 times of its own weight of iron, and the price is relatively cheap, which makes it has a very high application value in many fields.
Second, the manufacturing process of NdFeB
The manufacturing process of NdFeB magnet mainly has three kinds of sintering process, bonding process and injection molding process. Sintering process produces NdFeB magnets with very high coercivity and maximum magnetic energy product, magnetic stability is very good; bonding process can realize one-piece molding, no need to cut the operation, convenient to provide a variety of shapes of permanent magnets; injection molding process through injection molding, compression molding and other ways of molding, with a short production cycle, low cost and other advantages.
Wide application of NdFeB
1. Power electronics field: NdFeB plays an important role in magnetic control circuits such as power frequency converter, soft start, inverter, etc. It can effectively inhibit the short circuit of motor and improve the stability and efficiency of transformer.
2. Precision instrument field: NdFeB is used as a triggering ultra-high frequency point source for measuring memory display and data storage circuit; in data processor, NdFeB magnetic core has good stability and heat resistance, which can protect the circuit chip more effectively and improve the electronic efficiency of data processor.
3. Mechanical field: NdFeB is used in intelligent mechanical equipment, which can realize manual or automatic control, save time, improve efficiency, and bring security and energy saving.
Fourth, the development prospect of NdFeB
With the increasing demand for sustainable development and environmentally friendly materials, the manufacturing process of NdFeB magnets is constantly being improved to reduce dependence on rare earth resources and increase the recycling efficiency of materials. In the future, NdFeB will show its unique charm in more fields and contribute to the scientific and technological progress and green development of human society.