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A ferrite core material

A ferrite core and main material technology, applied in the field of oxide magnetic material manufacturing, to achieve the effects of magnetic stability, strong mechanical properties and high magnetic energy product

Active Publication Date: 2017-10-17
ANHUI SINOMAG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Now the electronic communication industry needs ferrite cores with low core loss and high magnetic permeability to meet the miniaturization and high efficiency requirements of current electrical equipment, and the existing magnetic cores are difficult to meet the above requirements;

Method used

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Experimental program
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Effect test

Embodiment 1

[0022] A kind of ferrite core material is characterized in that it comprises main material and additive, and described main material comprises: the Fe of 66.8 mol according to molar ratio 2 o 3 , 20.4 mol of manganese oxide, 17.5 mol of zinc oxide, 0.2 mol of talc, 1.3 mol of tin oxide, 0.02 mol of calcium-coated carbonyl iron powder, and 2.3 mol of iron powder; The weight ratio of the core material includes: 400ppm of copper oxide, 100ppm of bismuth oxide, and 200ppm of lithium nitride;

[0023] The preparation of the calcium-coated carbonyl iron powder comprises the following steps:

[0024] (1) Preparation of premix:

[0025] Described premix is ​​made up of the following raw materials of weight portion:

[0026] Calcium hydroxide 50, dioctyl ester 4, cetyltrimethylammonium chloride 4, calcium fluoride 6, chlorinated paraffin 4, deionized water 100;

[0027] Mix dioctyl ester and chlorinated paraffin, stir at 70°C for 3 minutes, add calcium fluoride, stir to room temper...

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Abstract

The invention discloses a ferrite magnetic core material, which includes main materials and additives, and the main materials include: 63.5-66.8mol of Fe2O3, 14.2-20.4mol of manganese oxide, 14.5-17.5mol of Zinc oxide, 0.1-0.2mol of talcum powder, 1.0-1.3mol of tin oxide, 0.01-0.02mol of calcium-coated carbonyl iron powder, 1-2.3mol of iron powder; additives according to the proportion of the ferrite core material The weight ratio meter includes: copper oxide of 300-400ppm, bismuth oxide of 60-100ppm, lithium nitride of 140-200ppm, and the calcium-coated carbonyl iron powder added to the ferrite core material of the present invention has high frequency and The high magnetic flux rate under ultra-high frequency further improves the overall performance of the finished product. The magnetic core material of the present invention has the characteristics of high magnetic energy product, stable magnetic properties and strong mechanical properties.

Description

technical field [0001] The invention mainly relates to the field of manufacture of oxide magnetic materials, in particular to a ferrite core material. Background technique [0002] With the development of communication technology and digitalization of electronic products, new requirements are put forward for soft ferrite and components. High-performance and high-permeability magnetic cores are widely used in various basic materials for telecommunications and information, such as common-mode filters, Saturated inductors, current transformers, leakage protectors, insulation transformers, signal and pulse transformers and other fields have been widely used. Now the electronic communication industry needs ferrite cores with low core loss and high magnetic permeability to meet the miniaturization and high efficiency requirements of electrical equipment. The existing magnetic cores are difficult to meet the above requirements; [0003] Carbonyl iron powder has the characteristics...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/26H01F1/34
Inventor 徐凯
Owner ANHUI SINOMAG TECH
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