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NdFeB Magnet Gradually Into Life
Aug 09, 2017

NdFeB Magnet gradually into life
With the increasingly stringent environmental protection measures around the world, new energy vehicles with its energy saving and environmental protection characteristics are being widely concerned. China's relevant departments in 2009 began in some areas of new energy vehicle demonstration and extension work. In this context, the domestic hybrid car into the rapid development stage.
According to third-party estimates, during the second five, the cumulative domestic hybrid vehicles will be more than 8 million. To each hybrid car about 5KG high-performance NdFeB permanent Magnet material estimates, by 2014 hybrid vehicles on the demand for high-performance NdFeB will reach 7,500 tons.
With the continuous improvement of people's living standards, the application of new NdFeB Magnet continue to enlarge, NdFeB Magnet will be more integrated into our lives, virtually to bring us convenience, NdFeB Magnet market share will continue to increase Big.
Another method for surface treatment of sintered NdFeB permanent Magnetic materials is that the surface of the material is subjected to nanocomposite electroplating n-TiO2 / Ni, where the TiO2 is nanometer-sized rutile TiO2 particles Or / and nanoscale anatase TiO2 particles. The corrosion resistance of the sintered NdFeB permanent Magnet material is greatly improved.
NdFeB Magnet are characterized by its very active molecules, it is easy to react with the oxygen in the air, in order to make it stable, play it with the energy, need to go through a long period of galvanized, can play Let it stabilize the role.
Permanent Magnet NdFeB (NdFeB) is the most powerful permanent Magnet in contemporary Magnet. It not only has the characteristics of high remanence, high coercivity, high Magnetic energy product, high performance and low cost, but also easy to process into various sizes, It is widely used in aviation, aerospace, electronics, electro-acoustic, electromechanical, instrumentation, instrumentation, antenna, medical equipment and other devices requiring permanent Magnetic field. It is especially suitable for the development of high performance, miniaturization and light All kinds of products. Working temperature 80 ℃ ~ 240 ℃.
NdFeB permanent Magnet material is the world's most Magnetic permanent Magnetic materials, the Magnetic energy product is widely used than the ferrite ten times higher than the first generation, the second generation of rare earth Magnet (SmCo permanent Magnet) Times, known as "the king of permanent Magnet". Instead of using other permanent Magnet materials, the volume and weight of the device can be reduced. As neodymium is rich in resources, compared with the samarium cobalt permanent Magnet, iron replaced the expensive cobalt, so that the product inexpensive, which has been very widely used.
Sintered NdFeB is the most permanent Magneto-Magnetic material, which is widely used in the field of electrical and electronic, electrical and mechanical, instrumentation, aviation, metal toys and so on. It is the best permanent Magnet material in the Magnet market. However, the stability of the sintered NdFeB Magnet is poor, the working temperature is usually less than 100 degrees Celsius, so in the field of high temperature motors and other applications are greatly limited. In this regard, an effective method is to add heavy rare earth Tb or Dy in Nd-Fe-B alloy, and to improve the Magnetism by forming Tb-Fe-B or Dy-Fe-B phase with high Magnetocrystalline anisotropy Coercive force, and thus achieve the purpose of improving the Magnet high temperature Magnetic. However, the use of these methods also have drawbacks: one in the same time to improve the Magnet coercivity, Tb or Dy will lead to the addition of Magnet Magnetization products significantly decreased; the second is due to Tb-Dy's global reserves much lower than Nd, the price High, the Magnet manufacturing costs increased significantly.
Sintered NdFeB Magnet is a kind of functional material in rare earth Magnetic material. It is mainly composed of neodymium, iron and boron three elements and other elements. To high-quality Magnetic, rich raw materials, low prices, widely used in micro-motor permanent Magnet Magnetic resonance sound equipment, Magnetic levitation systems, Magnetic transmission machinery and Magnetic therapy equipment, hardware, toys and other industries. The surface will be treated: including nickel-zinc-zinc-plated gold, spray epoxy resin.




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