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High performance soft magnetic ferrite material and preparation method thereof

A soft ferrite, high-performance technology, applied in the field of high-performance soft ferrite materials and preparation, can solve problems such as inability to guarantee conformity to products, and achieve the effects of enhanced comprehensive performance, enhanced crystal uniformity, and unique high temperature resistance.

Inactive Publication Date: 2015-12-02
ZHONGDE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the development of miniaturization and thinning of communication equipment, the electronic devices in them are required to have higher performance. Soft ferrite materials are used in various electronic circuits, but in many circuits, the devices usually work in the state of DC. The most typical examples are line output transformers, smoothing choke coils and pillow school transformers. In addition to maintaining good electromagnetic properties, the soft ferrite materials that work in the DC state must also maintain more detailed classification requirements for material properties. It is hoped that the soft ferrite material index can reach: magnetic permeability (25±3℃) 7000-7050%, power loss (25±3℃) 700-730, and the materials currently used cannot guarantee Products that meet this requirement

Method used

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  • High performance soft magnetic ferrite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A high-performance soft magnetic ferrite material, the raw materials of which include 100 parts by weight of main components, 0.001-0.003 parts of auxiliary components, and 1-5 parts of auxiliary agents;

[0025] The raw materials of the main component include: Fe 3 o 4 40 parts, 20 parts of NiO, 15 parts of ZnO, 3 parts of CuO, MnO 2 5 copies, WO 3 2 copies;

[0026] The raw materials of auxiliary components include by weight: Nb 2 o 5 0.5 parts, SiO 2 2 copies, Co. 2 o 3 0.5 parts, Ti 2 o 3 1.5 servings, La 2 o 3 1 part, 2.5 parts of chromium boride;

[0027] The raw materials of the auxiliary agents include 100 parts of modified polyvinyl alcohol, 3 parts of polyvinyl butyral, 3 parts of barium sulfate, 0.5 parts of emulsified silicone oil and 3 parts of zinc stearate.

[0028] During the preparation of modified polyvinyl alcohol, add 10 parts of polyvinyl alcohol, 2 parts of maleic anhydride, 20 parts of xylene, and 0.006 parts of butyric acid into a th...

Embodiment 2

[0030] A high-performance soft magnetic ferrite material, its raw materials include 100 parts by weight of main components, 0.003 parts of auxiliary components, and 1 part of auxiliary agents;

[0031] The raw materials of the main component include: Fe 3 o 4 50 parts, 16 parts of NiO, 20 parts of ZnO, 1 part of CuO, MnO 2 10 copies, WO 3 1 copy;

[0032] The raw materials of auxiliary components include by weight: Nb 2 o 5 2 parts, SiO2 1 copy, Co. 2 o 3 1.5 parts, Ti 2 o 3 0.5 parts, La 2 o 3 3 parts, 1.5 parts of chromium boride;

[0033] The raw materials of the auxiliary agents include 100 parts of modified polyvinyl alcohol, 6 parts of polyvinyl butyral, 1 part of barium sulfate, 1.5 parts of emulsified silicone oil and 1 part of zinc stearate.

[0034] During the preparation of modified polyvinyl alcohol, add 30 parts of polyvinyl alcohol, 1 part of maleic anhydride, 40 parts of xylene, and 0.005 parts of butyric acid into a three-necked flask, stir at reflu...

Embodiment 3

[0036] A high-performance soft magnetic ferrite material, the raw material includes 100 parts by weight of the main component, 0.0015 parts of the auxiliary component, and 4 parts of the auxiliary agent;

[0037] The raw materials of the main component include: Fe 3 o 4 42 parts, NiO18.5 parts, ZnO16 parts, CuO2.4 parts, MnO 2 6 copies, WO 3 1.4 copies;

[0038] The raw materials of auxiliary components include by weight: Nb 2 o 5 0.8 parts, SiO 2 1.6 parts, Co. 2 o 3 1 part, Ti 2 o 3 1 serving, La 2 o 3 1.5 parts, 2.3 parts of chromium boride;

[0039] The raw materials of the auxiliary agents include, by weight, 100 parts of modified polyvinyl alcohol, 4 parts of polyvinyl butyral, 2.3 parts of barium sulfate, 0.8 parts of emulsified silicone oil, and 1.8 parts of zinc stearate.

[0040] During the preparation of modified polyvinyl alcohol, 20 parts of polyvinyl alcohol, 1.2 parts of maleic anhydride, 30 parts of xylene, and 0.0058 parts of butyric acid were add...

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Abstract

The invention discloses a high performance soft magnetic ferrite material. The high performance soft magnetic ferrite material comprises, by weight, 100 parts of main components, 0.001-0.003 parts of auxiliary components and 1-5 parts of assistants. The main components comprise, by mole, 40-50 parts of Fe3O4, 16-20 parts of NiO, 15-20 parts of ZnO, 1-3 parts of CuO, 5-10 parts of MnO2 and 1-2 parts of WO3. The auxiliary components comprises, by weight, 0.5-2 parts of Nb2O5, 1-2 parts of SiO2, 0.5-1.5 parts of Co2O3, 0.5-1.5 parts of Ti2O3, 1-3 parts of La2O3 and 1.5-2.5 parts of chromium boride. The assistants comprise, by weight, 100 parts of modified polyvinyl alcohol, 3-6 parts of polyvinyl butyral, 1-3 parts of barium sulfate, 0.5-1.5 parts of silicone emulsion and 1-3 parts of zinc stearate. The invention also discloses a preparation method of the high performance soft magnetic ferrite material. The preparation method has the advantages of high frequency, high magnetic permeability, high resistivity and simple preparation processes.

Description

technical field [0001] The invention relates to the technical field of soft ferrite materials, in particular to a high-performance soft ferrite material and a preparation method. Background technique [0002] Due to the development of miniaturization and thinning of communication equipment, the electronic devices in them are required to have higher performance. Soft ferrite materials are used in various electronic circuits, but in many circuits, the devices usually work in the state of DC. The most typical examples are line output transformers, smoothing choke coils and pillow school transformers. In addition to maintaining good electromagnetic properties, the soft ferrite materials that work in the DC state must also maintain more detailed classification requirements for material properties. It is hoped that the soft ferrite material index can reach: magnetic permeability (25±3℃) 7000-7050%, power loss (25±3℃) 700-730, and the materials currently used cannot guarantee Prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/26C04B35/622
Inventor 张金兵吉燕芹陈申张玲
Owner ZHONGDE ELECTRONICS
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