NdFeB magnet, it is currently found commercial performance of the highest magnet, known as the magnetic king, with small size, light weight and strong magnetic characteristics, is so far the best performance and price ratio of magnets. It has extremely high magnetic properties and its maximum magnetic energy product is more than 10 times higher than ferrite. Its own mechanical processing performance is also quite good. Operating temperature up to 200 degrees Celsius. And its hard texture, stable performance, has a good cost performance, so its application is extremely wide. However, because of its strong chemical activity, the surface coating must be treated.
NdFeB magnet Basic knowledge:
NdFeB magnets can be divided into bonded NdFeB and sintered NdFeB.
It is expected that in the next 20-30 years, it is impossible to replace the magnetic materials of NdFeB magnets. The main raw materials for the production of NdFeB magnets are neodymium metal, pure iron, ferroboron alloy and other additives.
The core technology of NdFeB magnet industry is mainly reflected in the manufacturing process, which is specifically reflected in the uniformity, consistency, processing quality and coating quality of its products.
NdFeB magnets, as the third generation of rare earth permanent magnet materials, have a high performance-price ratio, and are widely used in energy, transportation, machinery, medical care, IT, home appliances and other industries, especially with the development of knowledge economy represented by information technology, to the rare earth permanent magnet NdFeB industry and other functional materials continue to bring new uses, which brings broader market prospects for the NdFeB industry.
NdFeB magnets in medical applications:
NdFeB permanent magnet is the national 863 project project of high-tech materials. What he can produce is a biological magnetic field that simulates the characteristics of the human magnetic field, and the performance is stable! Acting on the human body can correct the magnetic field of the human body itself, and by enhancing the biological electromagnetic energy of the human meridian, promote the operation of the meridian, so as to achieve the meridian, increase the blood supply to the brain, reduce the excitability of the cerebral cortex peripheral nerves, and produce the effect of promoting the metabolism of bone and joint tissues, hypnosis, analgesia, sedation, promoting blood circulation and eliminating anxiety. At present, it is commonly used to treat insomnia, neurasthenia, cervical spondylosis, scapulohumeral periarthritis and other chronic diseases of bone and joint, as well as the pain and numbness caused by these diseases.
The temperature resistance of NdFeB is about two hundred degrees, that is, more than two hundred degrees, there will be demagnetization phenomenon, if the temperature is higher, the demagnetization phenomenon is more serious.
- First, do not put the NdFeB magnet product into too high a temperature, especially pay attention to its critical temperature, that is, two hundred degrees, timely adjust its working environment temperature, you can minimize the occurrence of demagnetization phenomenon.
- Second, it is to start from the technology to improve the performance of products using magnets, so that it can have a more temperature structure and is not easily affected by the environment.
- Third, you can also choose the same magnetic energy product of high coercive materials. If not, only sacrifice a little magnetic energy product, find a lower magnetic energy product of higher coercive materials, no longer, you can choose to use samarium cobalt, as for reversible demagnetization, only choose samarium cobalt. Each material has different properties. So choose the most suitable, the most economical. It is necessary to consider thoroughly when designing, otherwise it will bring losses.
