Magnetic composite material and preparation method thereof

A technology of magnetic composite materials and alloys, which is applied in the manufacturing of magnetic materials, magnetic objects, inductors/transformers/magnets, etc. The effect of reducing the interface defect density and strengthening the grain boundary phase

Inactive Publication Date: 2018-11-30
ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a magnetic composite material and its preparation method, which solves the problem that the traditional preparation method is complicated and the comprehensive performance of the magnetic composite material is not high

Method used

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  • Magnetic composite material and preparation method thereof
  • Magnetic composite material and preparation method thereof
  • Magnetic composite material and preparation method thereof

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preparation example Construction

[0017] The present invention provides a kind of preparation method of magnetic composite material, and described preparation method comprises:

[0018] (1) Preparation of material A: B, Nd, V, Pt, Ge, Sm, S and Fe are mixed and batched, and the alloy liquid is obtained after melting, and the alloy liquid is poured on the forming furnace turntable to form a cast sheet, and the cast sheet is passed through After heat treatment, hydrogen crushing is carried out, and then material A is obtained by jet milling;

[0019] (2) Preparation of material B: Al 2 o 3 , Fe 2 o 3 , CaO, MgO, K 2 O, Nd 2 o 3 、Sm 2 o 3 、Na 2 O, CrO 3 , MnO 2 、GeO 2 , O 13 V 6 and SiO 2 Mixing ingredients, drying, sieving and sintering to obtain material B;

[0020] (3) Preparation of material C: mix the first waste material, Nd, Sm, and Ge after lye treatment, obtain alloy liquid after smelting, and obtain material C by atomizing the alloy liquid; wherein, the raw material of the first waste ma...

Embodiment 1

[0051] Carry out according to the above-mentioned method, wherein, material A comprises the raw material composition of following percentage by weight: B3%, Nd 24%, V 0.2%, Pt 0.003%, Ge 0.8%, Sm 2%, S 0.8% and balance Fe; Material B Comprising the following raw material components by weight percentage: Al 2 o 3 21%, Fe 2 o 3 3%, CaO 2%, MgO 3%, K 2 O 4%, Nd 2 o 3 0.01%, Sm 2 o 3 0.01%, Na 2 O 1%, CrO 3 0.4%, MnO 2 0.3%, GeO 2 0.001%, O 13 V 6 0.001% and balance SiO 2 ;Material C includes the following raw material components in weight percentage: C 0.14%, Mn 0.8%, Si 0.3%, S 0.01%, P 0.01%, V 0.02%, Nb 0.015%, Ti 0.02%, Nd 0.3%, Sm 0.02% , Ge 0.03% and balance Fe; material D includes the following raw material components by weight percentage: Al 8%, Mn 1.5%, Nd 0.04%, Sm 0.05%, Ge 0.03% and balance Cu; material A, material B, material C and material D are mixed according to the mass ratio of 1:0.003:0.06:0.03.

Embodiment 2

[0053] Carry out according to above-mentioned method, wherein, material A comprises the raw material composition of following weight percentage: B4%, Nd 26%, V 0.34%, Pt 0.004%, Ge 1%, Sm 3%, S 1% and balance Fe; Material B Comprising the following raw material components by weight percentage: Al 2 o 3 24%, Fe 2 o 3 5%, CaO 4%, MgO 6%, K 2 O 6%, Nd 2 o 3 0.03%, Sm 2 o 3 0.04%, Na 2 O2%, CrO 3 0.6%, MnO 2 0.6%, GeO 2 0.003%, O 13 V 6 0.003% and balance SiO 2 ;Material C includes the following raw material components in weight percentage: C 0.15%, Mn 1%, Si 0.45%, S 0.03%, P 0.03%, V 0.1%, Nb0.05%, Ti 0.1%, Nd 0.5%, Sm 0.04 %, Ge 0.05% and balance Fe; material D includes the following raw material components by weight percentage: Al 9%, Mn 2%, Nd 0.06%, Sm0.07%, Ge 0.05% and balance Cu; material A, material B , Material C and material D are mixed according to the mass ratio of 1:0.005:0.07:0.05.

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Abstract

The invention discloses a magnetic composite material and a preparation method thereof. The preparation method comprises the steps of preparation of a material A and preparation of a material B, preparation of a material C and preparation of a material D; and mixing the material A, the material B, the material C and the material D, and compacting to form a blank N; and carrying out sintering treatment and secondary tempering treatment on the blank N to obtain a rare-earth modified material. The problems that the traditional preparation method is complex and the comprehensive performance of theprepared magnetic composite material is not high are solved.

Description

technical field [0001] The invention relates to the field of inorganic materials, in particular to a magnetic composite material and a preparation method thereof. Background technique [0002] Rare earth permanent magnet material is the permanent magnet material with the highest comprehensive performance known now. It is more than 100 times higher than the magnetic properties of the magnet steel used in the nineteenth century, and it is much superior to ferrite and alnico. The magnetic properties of expensive platinum-cobalt alloys are twice as high. Since the use of rare earth permanent magnet materials not only promotes the miniaturization of permanent magnet devices and improves the performance of products, but also promotes the production of some special devices, so the appearance of rare earth permanent magnet materials immediately attracted great attention from all countries. Development is extremely rapid. The Chinese patent with the patent number CN201510546132.9 d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/057H01F41/02
Inventor 赵浩峰张椿英于鹏郑建华管佳佳王清清
Owner ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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