NdFeb (NDFEB) permanent magnet material is a permanent magnet material based on intermetallic compound ND2FE14B. NdFeB has a very high magnetic energy and coercive force, which sucks 640 times the weight of its own weight. The advantages of high energy density make the NdFeB permanent magnet materials have been widely used in modern industrial and electronic technology, thereby miniaturization, light quantification, and thinning of instruments, electroacoustic motors, magnetic selection magnetizations.
NdFeB magnet advantages are high performance prices, good mechanical properties, easy to cut processing; deficiencies are low, temperature characteristics, poor temperature characteristics, easy to pollize, must be adjusted and taken by surface The processing method is improved to achieve the requirements of practical applications.
The production of NdFe boron uses a powder metallurgy process, which will contain a certain ratio of raw materials such as: neodymium, iron, cobalt, niobium, aluminum, boron iron, etc., the flu spin into alloy steel ingots, and then crushed 3 to 5 μm powder, and press molding in the magnetic field, the molded green body is sintered and turned back in a vacuum sintering furnace, thus obtaining a permanent magnet blank having a certain magnetic performance. After the blanks are grinded, drilled, drilled, slice, and then the surface treatment has obtained the NdFrobiobiobi boron product required by the user.