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High-residual-magnetism material and preparation method therefor

A technology of high remanence and alloy materials, applied in the direction of magnetic materials, inorganic materials, magnetic objects, etc., can solve the problem of low remanence, achieve the effect of improving remanence, excellent magnetic properties, and inhibiting growth

Active Publication Date: 2018-01-09
太原市迪辉磁材科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, with the advancement of technology, it seems that the remanence of this material is not high at present.

Method used

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with specific examples.

[0029] A high remanence material, which is composed of three alloy materials I, II, III and an oxide complex IV;

[0030] The weight percentage of each component in the alloy material I is: Ga 0.7-0.9%, Bi 3-5%, Cr 0.1-0.5%, W 0.02-0.05%, V 0.05-0.09%, B 2-4%, Nd 20-25%, the rest Fe;

[0031] The weight percentage of each component in the alloy material II is: Sm 18-21%, Pt 0.02%-0.05%, Ge 0.06%-0.09%, Be 0.02%-0.08%, B 2-4%, and the rest Fe;

[0032] The weight percentage of each component in the alloy material III is: Pr 2-5%, Al 3-6%, Si 6-10%, and the rest Fe;

[0033] The weight percentage of each component in the inorganic composite material IV is: BaO 3-7%, Ce 2 o 3 0.1-0.4%, CuO0.1-0.4%, SiO 2 0.1-0.4%, K 2 O 0.1-0.4%, Na 2 O 0.1-0.4%, the rest Fe 2 o 3 ;

[0034] The weight ratio of the alloy materials I, II, III to the oxide complex IV is 1.2:1:(0.02-0.05):...

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Abstract

The invention relates to a high-residual-magnetism material and a preparation method therefor. The high-residual-magnetism material consists of a combination of three kinds of alloy materials I, II and III, and an oxide complex IV; the materials are prepared separately, and the alloy materials I, II and III, and the oxide complex IV are prepared based on the weight ratio and added to a three-dimensional mixer to be mixed uniformly to obtain mixed powder; next, the mixed powder is subjected to orientation in a magnetic field press and shaped by adopting an isostatic pressing mode; and the formed blank is put into a sintering furnace under argon protection to be subjected to sintering treatment to obtain a high-residual-magnetism product. The alloy preparation process is simple and convenient, the process is simple, and the produced alloys have high performance, so that industrial production can be realized very conveniently.

Description

technical field [0001] The invention relates to the field of materials, in particular to a high remanence material and a preparation method thereof. Background technique [0002] At present, in the field of high remanence materials, the process technology still needs to be improved. For example, the invention patent with the patent application number CN201610781202.3 involves a high coercive force RFeB system sintered magnet and its preparation method. Prepare R-Fe-B based sintered magnets with a thickness of 1-15mm, and then cover the surface of the magnet evenly with a mixed slurry made of ultra-fine terbium powder with an average powder particle size SMD of 1-2.5μm, an organic solvent, and an antioxidant , and heat treatment, this method can improve the coercive force of the magnet> 10kOe, and the remanence reduction is less than 0.2kGs. [0003] However, with the advancement of technology, it seems that the remanence of this material is not high. Aiming at the above...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/09H01F1/059H01F1/147C22C38/32C22C38/22C22C38/24C22C38/06C22C38/02
Inventor 李庆芳董英华陶昭灵赵浩峰
Owner 太原市迪辉磁材科技有限公司
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