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Powerful tell you ndfeb magnet manufacturer is composed of the material?

by:Maghard      2020-10-03
Main raw materials of ndfeb permanent magnet with a rare earth metal neodymium iron and boron nonmetal elements, metal elements ( Sometimes adding aluminum, cobalt, praseodymium, dysprosium, terbium, gallium, etc. ) , the general expressions for the: RE2TM14B ( RE = Nd,公关,Dy TM =铁、Co) Ndfeb permanent magnetic material based on Nd2Fe14B ternary compound as matrix, its content should be close to compound Nd2Fe14B formula is. But according to Nd2Fe14B composition ratio in full, magnets, magnetic can is very low, even no magnetic. Only actual of neodymium magnets and boron content than Nd2Fe14B compounds and neodymium boron content ( The form rich and rich boron phase neodymium) To get better performance of permanent magnet. Matrix Nd2Fe14 phase of this phase is the main phase of magnets, its volume percentage ( A reasonable fixed after smelting ingot) Determines the residual magnetism of the magnet ( Br) , the maximum magnetic energy product ( ( BH) m) , and forming the distribution of magnetic field orientation is to implement it to the molecular structure of the magnetic axis ( C) Orderly arrangement along the direction of orientation, so as to realize higher magnetic performance. Powerful magnet manufacturer for you about the discretion of the judge strong ndfeb magnetic considering mainly from the following three parameters: 1, the coercive force Hc ( 矫顽力) Unit Oersteds: is to put the magnetic materials in a reverse adscititious magnetic field, when applied magnetic field increases to a certain intensity magnet magnetic disappears, the resistance and the ability of the magnetic field, called coercive force, represents the ability of resistance to demagnetization. 2, remanence Br ( 剩余感应) Unit of Gauss: from saturated state after removal of magnetic field, the rest of the magnetic flux density, represents the magnetic material can provide to foreign magnetic field strength; 3, the magnetic energy product ( BH马克斯) Unit of Gauss - Oersteds: is material produced by the magnetic energy per unit volume, is how much a magnetic material can store energy in quantity;
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