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A kind of magnetic composite material and preparation method thereof

A magnetic composite material and inorganic composite material technology, applied in the field of magnetic materials, can solve the problem of low comprehensive performance, achieve high comprehensive magnetic performance, reduce defect density, and improve the effect of remanence

Active Publication Date: 2019-07-02
ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the overall performance is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A kind of magnetic composite material, its raw material is combined by alloy I, II, III and inorganic composite material IV, and the mass ratio of described alloy material I, II, III and inorganic composite material IV is 1.5:0.8:0.2:0.03;

[0050] The raw material composition and weight percentage of the alloy I are: Bi0.7%, Si0.5%, Ga0.03%, Sb0.01%, Sc0.05%, B2%, Nd20%, and the balance is Fe; Said B is added in the form of an iron-boron master alloy (FeB23C0.05), and the mass percentage of B in the iron-boron master alloy is 23%;

[0051] The raw material composition and weight percentage of the alloy II are: La12%, B3%, Pb0.02%, V0.03%, Os0.03%, Au0.001%, Be0.05%, and the balance is Fe; Said B is added in the form of boron-iron master alloy, and the mass percentage of B in the boron-iron master alloy is 23%;

[0052] The raw material composition and weight percentage of the alloy III are: Eu2%, Al 5%, Si5%, and the balance is Fe;

[0053] Its raw material compositi...

Embodiment 2

[0087] A kind of magnetic composite material, its raw material is combined by alloy I, II, III and inorganic composite material IV, and the mass ratio of described alloy material I, II, III and inorganic composite material IV is 1.5:1:0.5:0.03;

[0088] The raw material composition and weight percentage of the alloy I are: Bi1.2%, Si0.9%, Ga0.08%, Sb0.04%, Sc0.09%, B5%, Nd24%, and the balance is Fe; Said B is added in the form of boron-iron master alloy, and the mass percentage of B in the boron-iron master alloy is 23%;

[0089] The raw material composition and weight percentage of the alloy II are: La17%, B6%, Pb0.08%, V0.08%, Os0.08%, Au0.004%, Be0.09%, and the balance is Fe; Said B is added in the form of boron-iron master alloy, and the mass percentage of B in the boron-iron master alloy is 23%;

[0090] The raw material composition and weight percentage of the alloy III are: Eu6%, Al 9%, Si10%, and the balance is Fe;

[0091] Its raw material composition and weight per...

Embodiment 3

[0125] A kind of magnetic composite material, its raw material is combined by alloy I, II, III and inorganic composite material IV, and the mass ratio of described alloy material I, II, III and inorganic composite material IV is 1.5:0.9:0.4:0.03;

[0126] Its raw material composition and weight percentage of described alloy I are: Bi0.9%, Si0.79%, Ga 0.05%, Sb0.03%, Sc0.07%, B3%, Nd22%, and the balance is Fe; Said B is added in the form of boron-iron master alloy, and the mass percentage of B in the boron-iron master alloy is 23%;

[0127] The raw material composition and weight percentage of the alloy II are: La15%, B5%, Pb0.06%, V0.05%, Os0.06%, Au0.003%, Be0.06%, and the balance is Fe; Said B is added in the form of boron-iron master alloy, and the mass percentage of B in the boron-iron master alloy is 23%;

[0128] The raw material composition and weight percentage of the alloy III are: Eu4%, Al 7%, Si7%, and the balance is Fe;

[0129] Its raw material composition and w...

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Abstract

The invention relates to a magnetic composite material. The magnetic composite material is composed of alloys I, II, III and inorganic composite material IV, and the mass ratio of the alloys I, II, III and inorganic composite material IV is 1.5:0.8-1:0.2 ‑0.5:0.03, the preparation method steps include batching, press molding, sintering, and heat treatment. The magnetic composite material of the present invention has good thermal stability and good magnetic properties. The preparation method of the permanent magnetic alloy has simple technology, low production cost, and is suitable for in industrial production.

Description

technical field [0001] The invention belongs to the technical field of magnetic materials, and in particular relates to a magnetic composite material and a preparation method thereof. Background technique [0002] CN201611158469.3 provides a method for preparing a low-heavy rare earth, high coercivity permanent magnet material, which includes mixing and heat-treating rare-earth iron-boron alloy powder and heavy rare-earth metal or alloy powder, and continuously stirring while heat-treating, Diffuse heavy rare earth metal atoms into the surface layer of rare earth iron-boron alloy powder to obtain a mixture; place the mixture in a magnetic field above 1.5T and make a compact by orientation pressing; the compact is sintered at high temperature and tempered to prepare sintered rare earth iron Boron permanent magnet material. However, the comprehensive performance is not high. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the present inventi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/09C22C38/02C22C38/60C22C38/12C22C38/06
Inventor 赵浩峰张椿英莫宏恩于鹏黄自成郑建华柴阜桐柴知章周剑
Owner ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE