Soft magnetic ferrite material and preparation process thereof

A soft magnetic ferrite and raw material technology, applied in the field of ferrite materials, can solve problems such as unsatisfactory use requirements and increased core loss, and achieve the goals of promoting mass transfer and sintering, low core loss, and reducing core loss Effect

Inactive Publication Date: 2014-10-08
ZHONGDE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] As the speed of the development of electrons in the direction of high frequency continues to accelerate, the requirements for the high-frequency core loss characteristics of magnetic materials are also getting higher and higher, and the various core materials currently used have the same core loss in the high-frequency band. A sharp increase, unable to meet the requirements of use, therefore, it is necessary to develop a soft ferrite material used in high frequency state to adapt to this change

Method used

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  • Soft magnetic ferrite material and preparation process thereof

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Embodiment 1

[0019] A kind of soft magnetic ferrite material that the present invention proposes, its raw material comprises compound material and auxiliary material, wherein: compound material comprises: iron oxide 54mol%, manganese oxide 38mol%, zinc oxide 8mol% by the total mass of raw material As a benchmark, the auxiliary material contains the following components: nickel oxide 3000ppm, calcium carbonate 220ppm, lithium carbonate 100ppm, silicon dioxide 70ppm, magnesium oxide 50ppm, niobium oxide 80ppm, cobalt oxide 2000ppm, bismuth oxide 20ppm, vanadium oxide 400ppm, Titanium dioxide 1000ppm, zirconia 300ppm.

[0020] The preparation method of a kind of soft magnetic ferrite material that the present invention also proposes comprises the following steps:

[0021] S1. Add iron oxide, manganese oxide, zinc oxide, nickel oxide, calcium carbonate, and lithium carbonate into a mixer and stir for 20 minutes at a stirring speed of 300 rpm to obtain a mixed material A;

[0022] S2, adding t...

Embodiment 2

[0028] A kind of soft magnetic ferrite material that the present invention proposes, its raw material comprises compound material and auxiliary material, wherein: compound material comprises: iron oxide 54.5mol%, manganese oxide 38mol%, zinc oxide 7.5mol%; Based on the total mass, the auxiliary materials contain the following components: nickel oxide 3500ppm, calcium carbonate 800ppm, silicon dioxide 20ppm, magnesium oxide 200ppm, cobalt oxide 750ppm, bismuth oxide 30ppm, vanadium oxide 410ppm, titanium dioxide 2400ppm, copper oxide 400ppm , zirconia 100ppm, wherein the raw material particle size is 5μm.

[0029] The preparation method of a kind of soft magnetic ferrite material that the present invention also proposes comprises the following steps:

[0030] S1. Add iron oxide, manganese oxide, zinc oxide, nickel oxide, and calcium carbonate into a mixer and stir for 30 minutes at a stirring speed of 200 rpm to obtain a mixed material A;

[0031] S2, adding the mixed material...

Embodiment 3

[0037] A kind of soft magnetic ferrite material that the present invention proposes, its raw material comprises composite material and auxiliary material, wherein: composite material comprises: iron oxide 55mol%, manganese oxide 37.4mol%, zinc oxide 7.6mol% by raw material Based on the total mass, the auxiliary materials contain the following components: nickel oxide 5000ppm, calcium carbonate 200ppm, lithium carbonate 400ppm, silicon dioxide 60ppm, magnesium oxide 100ppm, niobium oxide 80ppm, cobalt oxide 1300ppm, bismuth oxide 24ppm, vanadium oxide 470ppm, titanium dioxide 1000ppm, copper oxide 100ppm, zirconia 300ppm, and the particle size of the raw material is 5μm.

[0038] The preparation method of a kind of soft magnetic ferrite material that the present invention also proposes comprises the following steps:

[0039] S1. Add iron oxide, manganese oxide, zinc oxide, nickel oxide, calcium carbonate, and lithium carbonate into a mixer and stir for 27 minutes at a stirring ...

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Abstract

The invention discloses a soft magnetic ferrite material. Raw materials for preparing the soft magnetic ferrite material comprise composite materials and auxiliary materials. The composite materials comprise iron oxide, manganese oxide and zinc oxide. The auxiliary materials comprise 0-6000 ppm of nickel oxide, 100-800 ppm of calcium carbonate, 0-500 ppm of lithium carbonate, 20-120 ppm of silicon dioxide, 0-230 ppm of magnesium oxide, 0-180 ppm of niobium oxide, 700-2000 ppm of cobalt oxide, 0-350 ppm of bismuth oxide, 100-600 ppm of vanadium oxide, 0-2500 ppm of titanium dioxide, 0-500 ppm of copper oxide, and 100-500 ppm of zirconium oxide. The invention also discloses a preparation process of the soft magnetic ferrite material. The soft magnetic ferrite material has high initial magnetic permeability and low magnetic core loss.

Description

technical field [0001] The invention relates to the technical field of ferrite materials, in particular to a soft ferrite material and a preparation process thereof. Background technique [0002] As the speed of the development of electrons in the direction of high frequency continues to accelerate, the requirements for the high-frequency core loss characteristics of magnetic materials are also getting higher and higher, and the various core materials currently used have the same core loss in the high-frequency band. The sharp increase cannot meet the requirements of use. Therefore, it is necessary to develop a soft ferrite material used under high frequency conditions to adapt to this change. Contents of the invention [0003] The technical problems of the basic background technology, the present invention proposes a soft ferrite material with low core loss in high frequency state. [0004] A kind of soft magnetic ferrite material proposed by the present invention, its r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/26C04B35/622
Inventor 李前军沈建元王久如屠德义王晓祥
Owner ZHONGDE ELECTRONICS
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