NdFeB magnetic materials, as the latest result of the development of rare earth permanent magnet materials, are called "magnetic king" due to their excellent magnetic properties. The neodymium iron boron magnetic material is an alloy of niobium, iron oxide or the like. Also known as magnetic steel. NdFeB has a very high magnetic energy product and strength, and the advantages of high energy density make NdFeB permanent magnet materials widely used in modern industrial and electronic technology, so that instrumentation, electroacoustic motor, magnetic separation magnetization It is possible to reduce the size, weight, and thickness of equipment. According to the experts of NdFeB recycling, the advantages of NdFeB are high cost performance and good mechanical properties. The disadvantage is that the Curie temperature is low, the temperature characteristics are poor, and it is easy to be pulverized and corroded. It must be adjusted by chemical composition and Surface treatment methods can be used to improve the requirements of practical applications.
Car navigation systems are considered the "brains" of cars and are increasingly computerized. They are so convenient that once they are used, it is difficult to release. The evolution of functionality is fast, including the storage of data from DVDs to mobile hard drives. Magnetic materials are mainly DC-AC inverters, DC-DC converters, EMC noise filters and HDD and DVD motor magnets.
Processing Technology and Performance Characteristics of NdFeB Magnets
1 green lighting project. Green lighting projects mainly use low-energy light bulbs, basically fluorescent lamps with electronic ballast technology. At present, the domestic (including sole proprietorship, joint venture processing enterprises) production capacity is about 500 million, and will increase to 1 billion by 2010. Recently, in the field of lighting engineering, in order to further save energy, electronic energy-saving lamps and semiconductor light-emitting diodes (LEDs) have been widely used, and the demand for ferrite soft magnetic is extremely large.
2 green and environmental protection. Household appliances, including electric kitchen appliances, vacuum cleaners, hair dryers, massagers, electric toys, ventilation fans, etc., on the one hand, the demand for permanent magnets is increasing; and the electromagnetic waves generated by the various types of electrical appliances It has caused environmental electromagnetic pollution. Foreign countries have already mentioned green environmental protection as the first job, and it is forbidden to sell electrical appliances without electromagnetic compatibility and electromagnetic interference.
3 green energy. Due to environmental protection and energy shortages, future green energy sources such as wind power and solar power will increase. The demand for NdFeB magnets for wind power generation will be a leap forward. Wind power and solar power require current inverter devices at the same time, which is a big market for soft ferrites. For the powerful NdFeB magnet manufacturers, the development of magnetic materials is to continue to develop in the high-end. With the emphasis on new energy, magnetic materials also need to keep up with the times, develop constantly, and seek breakthroughs!