Preparation method for soft magnetic ferrite with high saturation magnetic induction strength, wide temperature range and low loss

A technology of magnetic induction and soft ferrite, which is applied in the field of soft ferrite, can solve problems such as inability to guarantee mass production of products, and achieve suitable activity, increase saturation magnetic induction, and high magnetic permeability

Inactive Publication Date: 2015-12-23
ZHONGDE ELECTRONICS
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  • Claims
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Problems solved by technology

[0004] Moreover, with the development of the electronics industry and the expansion of application fields, the requirements for magnetic materials are getting higher and higher, and the classification requirements for material properties are more detailed and specialized. It is hoped that the corresponding powder indicators of the product can reach: magnetic permeability It is around 3500, and the core loss is less than 450Kw / m under the test conditions of 100Kc, 200mT, 25-120℃ 3 , while the materials currently used do not warrant mass production of products meeting this requirement

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  • Preparation method for soft magnetic ferrite with high saturation magnetic induction strength, wide temperature range and low loss
  • Preparation method for soft magnetic ferrite with high saturation magnetic induction strength, wide temperature range and low loss

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[0024] refer to figure 1 , the preparation method of a kind of high saturation magnetic induction intensity wide temperature low loss soft magnetic ferrite that the present invention proposes, comprises the following steps:

[0025] S1. After adding yttrium oxide, cobalt oxide, copper oxide, and strontium oxide into hydrochloric acid to dissolve completely, then add ferrous chloride, manganese chloride, zinc chloride, and nickel chloride and stir evenly to obtain material A;

[0026] S2. Add sodium hydroxide solution dropwise to the material A until the pH value is 9-11, let stand and age for 10-15 hours, then add triethanolamine and P123 for stirring, carry out hydrothermal reaction after standing, cool naturally, wash with water, Suction filtration, drying to obtain material B;

[0027] S3, adding zirconium oxide, titanium oxide, vanadium oxide, magnesium oxide, bismuth oxide, aluminum oxide, boron oxide, barium oxide, palladium oxide, tin oxide, indium oxide, calcium carbo...

Embodiment 1

[0030] The preparation method of a kind of high saturation magnetic induction intensity wide temperature low loss soft magnetic ferrite proposed by the present invention comprises the following steps:

[0031] S1. Add 12 parts of yttrium oxide, 26 parts of cobalt oxide, 18 parts of copper oxide, and 12 parts of strontium oxide into hydrochloric acid to dissolve completely, then add 72 parts of ferrous chloride, 16 parts of manganese chloride, 23 parts of Zinc chloride, 18 parts of nickel chloride are stirred evenly to obtain material A;

[0032] S2. Add dropwise sodium hydroxide solution to 100 parts of material A in parts by weight until the pH value is 9, let stand and age for 15 hours, then add 4 parts of triethanolamine and 3 parts of P123 for stirring, and carry out hydrothermal reaction after standing. The temperature of the hydrothermal reaction is 200°C, the time of the hydrothermal reaction is 10 hours, natural cooling, washing with water, suction filtration, and dryi...

Embodiment 2

[0036] The preparation method of a kind of high saturation magnetic induction intensity wide temperature low loss soft magnetic ferrite proposed by the present invention comprises the following steps:

[0037]S1. Add 18 parts of yttrium oxide, 22 parts of cobalt oxide, 22 parts of copper oxide, and 8 parts of strontium oxide into hydrochloric acid to completely dissolve them, then add 78 parts of ferrous chloride, 12 parts of manganese chloride, 26 parts of Zinc chloride, 15 parts of nickel chloride are stirred evenly to obtain material A;

[0038] S2. Add dropwise sodium hydroxide solution to 100 parts of material A in parts by weight until the pH value is 11, let stand and age for 10 hours, then add 6 parts of triethanolamine and 2 parts of P123 for stirring, and carry out hydrothermal reaction after standing. The temperature of the hydrothermal reaction is 220°C, the time of the hydrothermal reaction is 7 hours, natural cooling, washing with water, suction filtration, and d...

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Abstract

The invention discloses a preparation method of soft magnetic ferrite with high saturation magnetic induction strength, wide temperature range and low loss. The method comprises the following steps: adding yttrium oxide, cobalt oxide, copper oxide and strontium oxide into hydrochloric acid, after completion of dissolving, adding ferrous chloride, manganese chloride, zinc chloride and nickel chloride, and carrying out uniform mixing under stirring so as to obtain a material A; dripdrop adding a sodium hydroxide solution into the material A until a pH value is 9 to 11, carrying out standing and aging for 10 to 15 h, then adding triethanolamine and P123 under stirring, then carrying out standing and hydrothermal reaction, and carrying out natural cooling, washing, filtering and drying so as to obtain a material B; and adding zirconium oxide, titanium oxide, vanadium oxide, magnesium oxide, bismuth oxide, aluminum oxide, boron oxide, barium oxide, palladium oxide, tin oxide, indium oxide, calcium carbonate, tungsten carbide and an adhesive, and carrying out uniform mixing, pressing molding, sintering and cooling so as to obtain the soft magnetic ferrite with high saturation magnetic induction strength, wide temperature range and low loss.

Description

technical field [0001] The invention relates to the technical field of soft ferrite, in particular to a method for preparing soft ferrite with high saturation magnetic induction, wide temperature and low loss. 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. The application of soft magnetic materials in industry began at the end of the 19th century, with the rise of electric power and telecommunication technology, and its application range is extremely wide. Soft magnetic materials are not only used in the fields of home appliances, information technology, automobiles and other supporting fields, but more importantly, soft magnetic materials, as the main raw materials for the production of electronic components, have brought a steady stream of demand for them. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/40C04B35/622
Inventor 瞿德林王久如蒲成刚李丛俊
Owner ZHONGDE ELECTRONICS
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