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    NdFeB Magnet With Good Mechanical Properties

    Dongyang Aviation Magnetic Ltd | Updated: Sep 07, 2017

    NdFeB magnetic materials, as the latest results of the development of rare earth permanent magnet materials, because of its excellent magnetic properties and is known as "magnetic king". NdFeB magnetic material is neodymium, iron oxide and other alloys. Also known as magnet. NdFeB has a very high energy product and power, while the advantages of high energy density NdFeB permanent magnet materials in modern industrial and electronic technology has been widely used, so that instrumentation, electro-acoustic motor, magnetic magnetization It is possible to miniaturize, reduce, and reduce the size of the apparatus. NdFeB has the advantages of high cost performance and good mechanical properties. The shortcomings are that the Curie temperature is low, the temperature characteristics are poor, and it is easy to corrode the corrosion. It must be improved by adjusting its chemical composition and adopting the surface treatment method , In order to achieve the practical application requirements.

    NdFeB permanent magnet material is based on the intermetallic compound RE2FE14B based permanent magnet material. The main components of rare earth (Re), iron (Fe), boron (B). (R), aluminum (Al) and other metal parts of the alternative, boron content is small, but the use of rare earth ND in order to obtain different properties can be part of dysprosium (Dy), praseodymium (Pr) and other rare earth metals instead of iron can also be cobalt (Co) But plays an important role in the formation of tetragonal crystalline intermetallic compounds, so that the compound has high saturation magnetization, high uniaxial anisotropy and high Curie temperature.

    The third generation of rare earth permanent magnet NdFeB is the most powerful permanent magnet in contemporary magnets, its main raw material is rare earth metal neodymium 29% -32.5% metal element iron 63.95-68.65% non-metallic element boron 1.1-1.2% Dysprosium 0.6-1.2% niobium 0.3-0.5% aluminum 0.3-0.5% copper 0.05-0.15% and other elements

    Process: Ingredients → Melting Ingot / Scraping → Pulverizing → Pressing → Sintered Tempering → Magnetic Testing → Grinding → Cutting Cutting → Electroplating → Finished Product. Which ingredients are the foundation, sintering tempering is the key.

    NdFeB magnets production tools and performance testing tools: a smelting furnace, scrapping furnace, E broken machine, air grinding, pressing machine, vacuum packaging machine, isostatic press, sintering furnace, heat treatment vacuum furnace, magnetic performance test Instrument, gauss meter.

    NdFeB Magnet Machining Tools: unintentional grinding, spheronization machine, double-end grinding, flat grinding, slicing machine, double-sided grinding, wire cutting, Tianjin high-speed, West Lake bench drill, profiled grinding and so on.

    NdFeB magnets in the health care industry: a large number of practical and scientific experiments show that NdFeB high-strength magnetization can change the water surface tension, density, solubility and other physical properties, acid and other chemical properties have a significant impact, magnetized water Increase the activity of the enzyme in the water and the permeability of the biofilm, often drink can be physical health, conditioning the body's microcirculation system, digestive system, endocrine system and neurological function, improve human immunity, prevention and treatment of various diseases.

    NdFeB magnets in the anti-scaling industry: water through the NdFeB high-strength magnetization treatment, the water molecules at the same time the angle and length of deformation, hydrogen bond angle from 105 degrees to 103 degrees, so that the physical chemistry of water The nature of a series of changes in water activity and solubility greatly improved, the water in the process of decomposition of calcium carbonate generated lower soft calcium bicarbonate, easy to accumulate in the wall, easily taken away by water. In addition, the degree of polymerization of water is improved, and the dissolved solid matter becomes finer particles. After the particles are refined, the distance between the two ions is small, and it is not easy to condense on the wall, so as to achieve the effect of descaling.

    NdFeB magnets environmental protection and energy conservation is becoming an important factor affecting the development of manufacturing industries, and NdFeB is the manufacture of environmentally friendly energy-saving products, one of the main raw materials. Such as NdFeB in the automotive, compressors, wind turbines and other fields of application, it is out of environmental protection and energy considerations. NdFeB as environmentally friendly energy-saving functional materials, its application will be more extensive. In the era of increasingly tense energy, the wind energy into electricity will undoubtedly be supported by government policy, wind power is currently in Europe has been large-scale implementation, before the 1 MW unit using NdFeB roughly 1 ton, thanks to wind The rapid growth of the power generation industry, NdFeB in the wind turbine in the amount will also increase rapidly.