Preparing method of high-magnetism low-loss soft magnetic ferrite material

A soft ferrite, low-loss technology, applied in the direction of magnetic materials, magnetic objects, inorganic materials, etc., to save production costs, increase growth and density, and reduce losses

Inactive Publication Date: 2019-04-12
ZHONGDE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, soft magnetic ferrite materials still need to be improved in terms of magnetic properties and loss

Method used

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  • Preparing method of high-magnetism low-loss soft magnetic ferrite material

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Effect test

Embodiment 1

[0020] The preparation method of a kind of high magnetism low loss soft ferrite material that the present invention proposes, comprises the following steps:

[0021] S1, the Fe 2 o 3 、Ni 2 o 3 , Mn 3 o 4 , SnO 2 Mixing, ball milling once after adding water, and then drying to obtain material A;

[0022] S2, material A and MoO 3 、 Bi 2 o 3 Mixing, pre-burning and cooling to obtain material B;

[0023] S3, material B and TiO 2 , SiO 2 Mixing, adding water, performing secondary ball milling, and then drying to obtain material C;

[0024] S4. Mixing material C with polyvinyl alcohol aqueous solution and zinc stearate, granulating, and pressing to obtain material D;

[0025] S5. The material D is heated and sintered, and then cooled to room temperature to obtain a soft magnetic ferrite material with high magnetic properties and low loss.

Embodiment 2

[0027] The preparation method of a kind of high magnetism low loss soft ferrite material that the present invention proposes, comprises the following steps:

[0028] S1, by weight 80 parts of Fe 2 o 3 , 5 parts of Ni 2 o 3 , 12 parts of Mn 3 o 4 , 3 parts of SnO 2 After mixing, place it in a planetary ball mill, add water, perform ball milling once, and then dry at 110°C to obtain material A; wherein, the ball milling speed is 320r / min, and the ball milling time is 2h;

[0029] S2, by weight 120 parts of material A and 0.4 parts of nano-MoO 3 , 0.5 nanometer Bi 2 o 3 Mix, first raise the temperature to 420°C at a heating rate of 4°C / min, keep it warm for 40 minutes, then raise the temperature to 820°C at a heating rate of 2°C / min, pre-burn for 1.5 hours, and cool to room temperature to obtain material B;

[0030] S3, by weight 120 parts of material B and 0.5 part of nano TiO 2 , 0.4 parts of nano-SiO 2 After mixing, place it in a planetary ball mill, add water, perf...

Embodiment 3

[0034] The preparation method of a kind of high magnetism low loss soft ferrite material that the present invention proposes, comprises the following steps:

[0035] S1, by weight 90 parts of Fe 2 o 3 , 6.5 parts Ni 2 o 3 , 15 parts of Mn 3 o 4 , 4 copies of SnO 2After mixing, place it in a planetary ball mill, add water, perform ball milling once, and then dry at 115°C to obtain material A; wherein, the ball milling speed is 340r / min, and the ball milling time is 1.8h;

[0036] S2, by weight 135 parts of material A and 0.5 part of nanometer MoO 3 , 0.4 nano Bi 2 o 3 Mix, first raise the temperature to 430°C at a heating rate of 5°C / min, keep it warm for 35 minutes, then raise the temperature to 830°C at a heating rate of 3°C / min, pre-burn for 1.2 hours, and cool to room temperature to obtain material B;

[0037] S3, by weight 140 parts of material B and 0.6 parts of nano TiO 2 , 0.5 parts of nano-SiO 2 After mixing, place it in a planetary ball mill, add water, per...

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Abstract

The invention discloses a preparing method of a high-magnetism low-loss soft magnetic ferrite material. The method comprises the following steps of S1, mixing Fe2O3, Ni2O3, Mn3O4 and SnO2, conductingprimary ball milling after water is added, and then conducting drying to obtain a material A; S2, mixing the material A with MoO3 and Bi2O3, and then conducting cooling after pre-sintering to obtain amaterial B; S3, mixing the material B with TiO2 and SiO2, conducting secondary ball milling after water is added, and then conducting drying to obtain a material C; S4, mixing the material C with anaqueous polyvinyl alcohol solution and zinc stearate, and conducting pelleting and compression molding to obtain a material D; S5, conducting high-temperature sintering on the material D, and then cooling to the room temperature to obtain the high-magnetism low-loss soft magnetic ferrite material. By means of the preparing method of the high-magnetism low-loss soft magnetic ferrite material, the obtained product is high in magnetism, the loss is low in the using process, and the service life is long.

Description

technical field [0001] The invention relates to the technical field of ferrite materials, in particular to a method for preparing a high-magnetism and low-loss soft ferrite material. Background technique [0002] The soft magnetic ferrite material is an inorganic ferrite material that is made by mixing iron, nickel, manganese, zinc, magnesium and other metal element compounds according to a certain stoichiometric ratio, after ball milling, pre-sintering, compression molding, etc., and sintering under a certain temperature condition. Non-metallic magnetic materials have been widely used in the fields of computers, communication technology, aerospace, electronic power technology, and daily life products since they were researched and developed, and they occupy an extremely important position in the development of the national economy. At present, soft ferrite materials still need to be improved in terms of magnetic performance and loss. Contents of the invention [0003] Ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/36H01F1/34
CPCC04B35/265C04B2235/3232C04B2235/3256C04B2235/3293C04B2235/3298C04B2235/3418C04B2235/6562C04B2235/6567C04B2235/96H01F1/344
Inventor 瞿德林王久如李丛俊
Owner ZHONGDE ELECTRONICS
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