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Low-loss soft magnetic ferrite material and preparation method thereof

A technology of soft ferrite and low loss, which is applied in the field of low loss soft ferrite material and its preparation, can solve the problem of unsatisfactory magnetic core loss, etc., and achieve high magnetic permeability, high resistivity, and high magnetic permeability Effect

Inactive Publication Date: 2015-11-11
ZHONGDE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the soft magnetic ferrite in the prior art is often not ideal in magnetic core loss, and it is difficult to meet the actual requirements. Now a new soft magnetic ferrite material with low magnetic core loss and initial magnetic permeability ≥ 2100 is needed.

Method used

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  • Low-loss soft magnetic ferrite material and preparation method thereof
  • Low-loss soft magnetic ferrite material and preparation method thereof

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preparation example Construction

[0027] refer to figure 1 , the preparation method of a kind of low-loss soft magnetic ferrite material that the present invention proposes, comprises the following steps:

[0028] S1. After adding the adsorbent and emulsifier into the water and stirring evenly, ultrasonically disperse for 25-40 minutes to obtain the first material;

[0029] S2, adding ferric nitrate, manganese nitrate, zinc nitrate and nickel nitrate into water to dissolve to obtain the second material;

[0030] S3, adding the second material dropwise to the first material, followed by evaporating and drying, roasting, and cooling to obtain a powder material;

[0031]S4. Add neodymium oxide, vanadium oxide, niobium oxide, boron oxide, calcium carbonate, lithium carbonate, barium carbonate, silicon dioxide and binder to the powder material for spray granulation, tablet molding, and sintering to obtain low-loss soft powder. Ferrite material.

Embodiment 1

[0034] A kind of low-loss soft magnetic ferrite material proposed by the present invention, its raw material comprises main material and auxiliary material, and wherein main material comprises: iron nitrate 57 parts, manganese nitrate 42 parts, zinc nitrate 9 parts, nickel nitrate 10 parts; Based on the total weight of main materials, the auxiliary materials include: neodymium oxide 300ppm, vanadium oxide 400ppm, niobium oxide 400ppm, boron oxide 700ppm, calcium carbonate 50ppm, lithium carbonate 100ppm, barium carbonate 20ppm, silicon dioxide 800ppm, adhesive 2000ppm, Adsorbent 5×10 6 ppm, emulsifier 300ppm.

[0035] The preparation method of the above-mentioned low-loss soft ferrite material that the present invention also proposes comprises the following steps:

[0036] S1. After adding the adsorbent and emulsifier into the water and stirring evenly, the first material was obtained after ultrasonic dispersion for 25 minutes;

[0037] S2, adding ferric nitrate, manganese n...

Embodiment 2

[0041] A low-loss soft magnetic ferrite material proposed by the present invention, its raw materials include main materials and auxiliary materials, wherein the main materials include 58 parts of iron nitrate, 41 parts of manganese nitrate, 10 parts of zinc nitrate, and 9.4 parts of nickel nitrate in molar parts; Based on the total weight of main materials, the auxiliary materials include: neodymium oxide 320ppm, vanadium oxide 360ppm, niobium oxide 450ppm, boron oxide 600ppm, calcium carbonate 100ppm, lithium carbonate 90ppm, barium carbonate 50ppm, silicon dioxide 600ppm, adhesive 2200ppm, Adsorbent 4×10 6 ppm, emulsifier 350ppm.

[0042] The preparation method of the above-mentioned low-loss soft ferrite material that the present invention also proposes comprises the following steps:

[0043] S1. After adding the adsorbent and emulsifier into water and stirring evenly, the first material was obtained after ultrasonic dispersion for 40 minutes, wherein the weight ratio of ...

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Abstract

The invention discloses a low-loss soft magnetic ferrite material which comprises main materials and auxiliary materials, wherein the main materials comprise the following components in parts by mole: 57 to 60 parts of ferric nitrate, 40 to 42 parts of manganese nitrate, 9-12 parts of zinc nitrate and 8 to 10 parts of nickel nitrate; by using the total weight of the main materials as a reference, the auxiliary materials comprise the following components: 300 to 400 ppm of neodymium oxide, 300 to 400 ppm of vanadium oxide, 400 to 600 ppm of niobium oxide, 300 to 700 ppm of boron oxide, 50 to 200 ppm of calcium carbonate, 20 to 100 ppm of lithium carbonate, 20 to 80 ppm of barium carbonate, 250 to 800 ppm of silica, 2000 to 2500 ppm of an adhesive, 3*10<6> to 5*10<6> ppm of an adsorbent, 300 to 500 ppm of an emulsifier. The invention also discloses a method for preparing the low-loss soft magnetic ferrite material; the magnetic core is low in loss and the saturation induction density is high.

Description

technical field [0001] The invention relates to the technical field of soft ferrite, in particular to a low-loss soft ferrite material and a preparation method thereof. Background technique [0002] Soft ferrite refers to a magnetic material that is easily magnetized and demagnetized under the action of an external magnetic field. It is often a composite oxide obtained by sintering iron oxide and one or more other metal oxides. Soft ferrite materials are widely used basic materials in industries such as electronics, electromechanical and communication networks. They play a very important role in the development of modern industry and technology, and have made outstanding contributions to the optimization and improvement of the performance of electronic components. With the continuous development of the electronics industry, the use trend of small integration, light, thin, high frequency and low loss of electronic products, it can be foreseen that for a long time in the futur...

Claims

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Application Information

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IPC IPC(8): C04B35/26C04B35/622
Inventor 李丛俊鲍学琴张金兵毛新山蒲成刚
Owner ZHONGDE ELECTRONICS
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