Nd-Fe-B permanent-magnet material for energy-saving motor and fabrication method of Nd-Fe-B permanent-magnet material
A permanent magnet material, neodymium iron boron technology, applied in the direction of magnetic materials, inorganic material magnetism, magnetic circuit characterized by magnetic materials, etc., can solve the problems of low Curie temperature and cannot be applied, and achieve anisotropic field High, good oxidation resistance and mechanical properties, the effect of improving the scope of application
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[0014] The present invention adopts the following technical scheme to realize: the NdFeB permanent magnet material for this energy-saving motor has the composition shown in the following formula: R1 x R2 y Fe 100-x-y-z-u-v-w Co z B u Ga v M w
[0015] Among them, x, y, z, u, v, and w are the mass percentages of each element, 32.5%≤x+y≤33%, and 28.5%≤x≤29%; 2%≤z≤2.5%; 0.94%≤ u≤0.98%; 0.1%≤v≤0.15%; 1.18%≤w≤1.7%; R1 is Pr and Nd; R2 is selected from one or more of Ce, Dy, Gd, Tb, Ho; M is selected from Cu , one or more of Al, Zr, and Nb.
[0016] As a preferred solution of the present invention, x+y=33%, x=28.5%, z=2.2%, u=0.98%, v=0.11%, w=1.56%, R2 is Ce, Dy, Gd, Tb, Ho , M is Cu, Al, Zr, Nb.
[0017] As a preferred solution of the present invention, the mass ratio of Pr to Nd of the NdFeB permanent magnet material for energy-saving motors is 1:3.
[0018] The preparation method of the NdFeB permanent magnet material for an energy-saving motor includes the following s...
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