Neodymium iron boron magnet material, as the latest result of the development of rare earth permanent magnet material, is called "magneto king" because of its excellent magnetic properties. Neodymium iron boron magnetic materials are alloys of neodymium, iron oxide, etc. Also known as magnetic steel. Neodymium iron boron (NdFeB) permanent magnet materials have been widely used in modern industry and electronic technology due to its high magnetic energy accumulation and coercive force and high energy density, which makes it possible to miniaturize, lighten and thin the instruments, electro acoustic motors, magnetic separation magnetization and other equipment. The advantages of NdFeB are high cost performance and good mechanical properties; the disadvantages are low Curie temperature point, poor temperature characteristics, and easy to be powdered and corroded. Only by adjusting its chemical composition and adopting surface treatment can it be improved, can it reach the requirements of practical application.
The third generation of rare earth permanent magnet NdFeB is the most powerful permanent magnet in the present age. Its main raw materials are rare earth metal NdFeB 29% - 32.5% metal element Fe 63.95-68.65% non-metal element boron 1.1-1.2% a small amount of dysprosium 0.6-1.2% niobium 0.3-0.5% aluminum 0.3-0.5% copper 0.05-0.15% and other elements.
Neodymium iron boron permanent magnetic material is based on the intermetallic compound re2fe14b. The main components are rare earth (RE), iron (FE), boron (b). In order to obtain different properties, rare earth Nd can be replaced by dysprosium (Dy), praseodymium (PR) and other rare earth metals. Iron can also be replaced by cobalt (CO), aluminum (AL) and other metals. The content of boron is small, but it plays an important role in the formation of intermetallic compounds with tetragonal crystal structure, making the compounds have high saturation magnetization, high uniaxial anisotropy and high Curie temperature.
Technological process: batching → smelting and ingot making / belt rejection → pulverizing → molding → sintering and tempering → magnetic testing → grinding → pin cutting → electroplating → finished product. Among them, burden is the foundation and sintering tempering is the key.
Neodymium iron boron magnet rough production tools and performance testing tools: smelting furnace, belt rejection furnace, jaw crusher, air flow mill, press molding machine, vacuum packaging machine, etc. static press, sintering furnace, heat treatment vacuum furnace, magnetic property tester, Gauss meter.
Neodymium iron boron magnet machining tools: centerless grinding, rounding machine, double end grinding, flat grinding, slicing machine, double-sided grinding, wire cutting, Tianjin high speed, West Lake bench drill, special grinding, etc.
AISEN MAGNETS focused on development and manufacturing of Neodymium magnet, has more than 10 years manufacturing experience in producing various sizes, different shape and surface coating. Over 45 different grades of neodymium magnet (strong magnet) widely used in many industry.
