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Rare-earth modification material and preparation method thereof

A rare earth modification and raw material technology, which is applied in the manufacture of magnetic materials, magnetic objects, inductors/transformers/magnets, etc., can solve the problems of low comprehensive performance of rare earth modified materials and complicated preparation methods, so as to avoid a significant decrease in remanence. , excellent performance, strengthen the effect of demagnetization coupling

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 rare earth modified material and its preparation method, which solves the problem that the traditional preparation method is complicated and the comprehensive performance of the prepared rare earth modified material is not high

Method used

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preparation example Construction

[0017] The invention provides a preparation method of a rare earth modified material, characterized in that the preparation method comprises:

[0018] (1) Preparation of material A: mix the first waste material, Nd, Re, In and Yb after alkali treatment, obtain alloy liquid after smelting, and obtain material A through atomization treatment of alloy liquid; wherein, waste material Raw material components include: C, Mn, Si, S, P and Fe;

[0019] (2) Preparation of material B: Al 2 o 3 , Fe 2 o 3 , CaO, MgO, K 2 O, Na 2 O, Nd 2 o 3 , Yb, Re 2 o 7 and SiO 2 Enter the mixed ingredients, obtain material B after drying, sieving and sintering;

[0020] (3) Preparation of material C: mix the second waste material, Nd, In and Yb treated with lye, and obtain an alloy solution after smelting, and atomize the alloy solution to obtain material C; wherein, the raw material composition of the waste material Including: Pb, Sn, Zn and Cu;

[0021] (4) Preparation of material D: B,...

Embodiment 1

[0050] According to the above preparation method, wherein, material A includes the following raw materials in weight percentage: C 0.09%, Mn 0.25%, Si 0.1%, S 0.02%, P 0.015%, Nd 0.05%, Re 0.01%, In 0.01% , Yb 0.05% and balance Fe; Material B includes raw materials in the following weight percentages: Al 2 o 3 20%, Fe 2 o 3 1%, CaO 0.5%, MgO 2%, K 2 O1%, Na 2 O 0.1%, Nd 2 o 3 0.1%, Yb 2 o 3 0.1%, Re2O7 0.001% and balance SiO2; material C includes the following raw materials in weight percentage: Pb 1.5%, Sn 3%, Zn 3%, Nd 0.04%, Yb 0.05%, In 0.01% and balance Cu; material D Including raw materials in the following weight percentages: B 4.5%, Nd 24%, Re 0.3%, In 0.8%, Yb 0.05%, S0.8% and the balance Fe; material A, material B, material C and material D according to the mass ratio Mix in a ratio of 0.03:0.006:0.01:1.

Embodiment 2

[0052] According to the above preparation method, wherein, material A includes the following raw materials in weight percentage: C 0.11%, Mn 0.45%, Si 0.2%, S 0.04%, P 0.035%, Nd 0.07%, Re 0.03%, In 0.02% , Yb 0.07% and balance Fe; Material B includes the following raw materials in weight percentage: Al 2 o 3 22%, Fe 2 o 3 2%, CaO 0.9%, MgO 3%, K 2 O2%, Na 2 O 0.3%, Nd 2 o 3 0.3%, Yb 2 o 3 0.3%, Re2O7 0.003% and balance SiO2; material C includes the following raw materials in weight percentage: Pb 2.5%, Sn 4%, Zn 4%, Nd 0.06%, Yb 0.07%, In 0.02% and balance Cu; material D Including raw materials in the following weight percentages: B 5%, Nd 26%, Re 0.4%, In 1.1%, Yb 0.079%, S0.9% and the balance Fe; material A, material B, material C and material D according to the mass ratio Mixed at a ratio of 0.04:0.009:0.02:1.

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Abstract

The invention discloses a rare-earth modification material and a preparation method thereof. The preparation method comprises the preparation of a material A, the preparation of a material B, the preparation of a material C and the preparation of a material D; the material A, the material B, the material C and the material D are mixed and compacted to form a blank N, and sintering treatment and secondary tempering treatment are carried out on the blank N respectively to obtain the rare-earth modification material. The problems that a traditional preparation method is complex and an obtained rare-earth modification material is not high in overall performance are solved.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a rare earth modified 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 No. CN201410763584.8 discloses a high-pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/057H01F41/02
CPCH01F1/0573H01F1/0576H01F1/0577H01F41/0253H01F41/0266
Inventor 赵浩峰张椿英韩海东于鹏柴阜桐李明飞
Owner ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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