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A soft ferrite material with high magnetic permeability and low core loss

A soft ferrite and ferrite core technology, applied in the field of magnetic materials, can solve the problems of low saturation magnetic flux density, high magnetic loss, low frequency, etc., and achieve high permeability, low cost, and low core loss. Effect

Active Publication Date: 2016-03-30
ZHONGDE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are many shortcomings in the existing soft ferrite materials: low frequency, low saturation magnetic flux density and high magnetic loss, which limit the development of miniaturization and light weight of electronic devices
[0006] However, the magnetic permeability and core loss of the existing soft ferrite materials cannot meet the actual needs, and further improvement is urgently needed

Method used

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  • A soft ferrite material with high magnetic permeability and low core loss
  • A soft ferrite material with high magnetic permeability and low core loss
  • A soft ferrite material with high magnetic permeability and low core loss

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In this embodiment, a soft magnetic ferrite material composed of the following components is generated after vibrating milling, rolling, calcining, coarse crushing, secondary crushing, pulping, formula analysis and adjustment, and spray granulation:

[0029]

[0030]

[0031] Compress the above granular powder into (Currently the general material performance test ring in the industry) the standard sample ring is sintered in a power atmosphere furnace. The sample rings were tested, and the test results are shown in Table 1.

Embodiment 2

[0033] In this embodiment, a soft magnetic ferrite material composed of the following components is generated after vibrating milling, rolling, calcining, coarse crushing, secondary crushing, pulping, formula analysis and adjustment, and spray granulation:

[0034]

[0035] Compress the above granular powder into (Currently the general material performance test ring in the industry) the standard sample ring is sintered in a power atmosphere furnace. The sample rings were tested, and the test results are shown in Table 1.

Embodiment 3

[0037] In this embodiment, a soft magnetic ferrite material composed of the following components is generated after vibrating milling, rolling, calcining, coarse crushing, secondary crushing, pulping, formula analysis and adjustment, and spray granulation:

[0038]

[0039] Compress the above granular powder into (Currently the general material performance test ring in the industry) the standard sample ring is sintered in a power atmosphere furnace. The sample rings were tested, and the test results are shown in Table 1.

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Abstract

The invention relates to a soft magnetic ferrite material which comprises a major component and additives. The major component comprises, by mole, 50.5-57 mol% of Fe2O3, 31-39 mol% of MnO and 7-15 mol% of ZnO. The additives comprise, according to weight percentage accounting for the soft magnetic ferrite material, 20-80ppm of SiO2, 100-500ppm of CaO, 250-600ppm of Nb2O5, 400-1000ppm of Co2O3 and 150-400ppm of V2O5. The soft magnetic ferrite material is made of conventional raw materials, is low in cost and has high magnetic permeability and low magnetic core loss.

Description

technical field [0001] The invention relates to the technical field of magnetic materials, in particular, the invention relates to a soft ferrite material. Background technique [0002] The soft ferrite material is based on Fe 2 o 3 Ferrite with soft magnetic properties as the main component, characterized by easy magnetization and demagnetization. Soft magnetic ferrite material is a basic material with wide application, large output and low cost. It is one of the important pillar products in the electronics and electromechanical industries. Its promotion and application directly affect electronic information, home appliance industry, computer and communication, and environmental protection. And the development of energy-saving technology is also one of the symbols to measure the degree of economic development of a country. It has been half a century since the practical use of soft ferrite materials. Because of its high magnetic permeability, high resistivity, low loss, g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/34
Inventor 李前军蔡中德沈建元王晓祥王步猛徐升宝陆明兵蔡春桥陈维兆
Owner ZHONGDE ELECTRONICS
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