Neodymium ferroboron magnet, which is currently the magnet with the highest commercial performance, is known as the magnetic king and has the characteristics of small size, light weight and strong magnetism. It is the magnet with the best performance price so far. With extremely high magnetic properties, its maximum magnetic energy accumulation is more than 10 times higher than that of ferrite. Its own mechanical processing performance is also quite good. The operating temperature can reach up to 200 degrees Celsius. And its texture is hard, its performance is stable, and it has a good value for money, so its application is extremely extensive. However, because of its strong chemical activity, its surface layer must be treated.
Basic knowledge of neodymium iron boron magnets:
Neodymium iron boron magnets can be divided into two types: bonded neodymium iron boron and sintered neodymium iron boron.
It is expected that in the next 20-30 years, it will not be possible to replace magnetic materials such as neodymium ferroboron magnets. The main raw materials for the production of neodymium iron boron magnets are metal neodymium, pure iron, boron iron alloys and other additives.
The core technology of neodymium iron boron magnet industry is mainly embodied in the manufacturing process, which is embodied in the uniformity, consistency, processing quality and coating quality of its products.
As a third-generation rare earth permanent magnet, neodymium iron boron magnet has a high performance price. It is widely used in energy, transportation, machinery, medical care, IT, home appliances and other industries, especially with the development of the knowledge economy represented by information technology. To rare earth permanent magnetic neodymium iron boron industry and other functional materials continuously bring new uses, which brings a wider market prospects for neodymium iron boron industry.
Application of neodymium iron boron magnet in medical field:
Neodymium ferroboron permanent magnet is a high-tech material for the National 863 project. What he can produce is a biological magnetic field that simulates the characteristics of the human magnetic field and is stable in performance! The action on the human body can correct the magnetic field of the human body itself, and promote the operation of the gas by enhancing the biological electromagnetic energy of the human body's meridians, so as to achieve the passage of meridians, increase the blood supply to the brain, and reduce the excitement of the nerve in the cerebral cortex. Produced effects that promote bone joint tissue metabolism, hypnosis, analgesia, sedation, blood circulation and elimination of anxiety. It is commonly used to treat chronic diseases such as insomnia, neurasthenia, cervical spondylosis, periarthritis, and other symptoms such as pain and numbness caused by these diseases.
The temperature of resistance to neodymium iron boron is about 200 degrees, that is, if it exceeds 200 degrees, demagnetization will occur. If the temperature is higher, the demagnetization phenomenon will be more serious.
First, do not put neodymium iron boron magnet products in an excessively high temperature, especially to pay attention to its critical temperature, that is, 200 degrees, timely adjustment of its working environment temperature, can minimize demagnetization.
The second is to start with technology to improve the performance of products that use magnets so that they can have a hotter structure and are not vulnerable to environmental impacts.
Third, you can also choose the same magnetic energy product of high coercive force materials. If not, then only a little magnetic energy product, search for a lower magnetic energy product of higher coercive force materials, no, you can choose to use cobalt, as for reversible demagnetization, You 'll have to choose samarium cobalt. Each material has different characteristics. So choose the most suitable and economical. When designing, consider the integrity. Otherwise, it will cause losses.