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High magnetic conductivity and low loss factor manganese-zinc ferrite material and manufacture process thereof

A manganese zinc ferrite, high magnetic permeability technology, applied in the field of manganese zinc ferrite materials, can solve the problems of not meeting the requirements of energy saving and environmental protection, high loss, etc.

Inactive Publication Date: 2010-12-08
TIANCHANG CITY ZHAOTIAN MAGNETOELECTRICITY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical applications, with the rapid development of communication, computer, and network technologies, the requirements for manganese zinc ferrite materials must not only have high magnetic permeability, but also take into account temperature characteristics, frequency characteristics, stability, low loss, and low harmonics. Distortion and other comprehensive properties, however, there is no manganese-zinc ferrite material with excellent comprehensive properties, especially high magnetic permeability will always bring high loss, which does not meet the requirements of modern society for energy conservation and environmental protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Manganese zinc ferrite material with high magnetic permeability and low loss factor is prepared according to the following method:

[0026] (1) prepare materials according to the following formula:

[0027] Main ingredient: Fe 2 o 3 53mol%, MnO23mol%, ZnO24mol%;

[0028] Auxiliary components (according to the mass percentage of main components): P 2 o 5 0.005wt%, CaO 0.02wt%, SiO 2 0.006wt%, Bi 2 o 3 0.01wt%, MoO 3 0.005wt%, Ta 2 o 5 0.03wt%;

[0029] (2) Mixing: the main components are mixed, and the powder is obtained after mixing for 0.5 hours with a vibrating ball mill;

[0030] (3) Pre-burning: pre-burning the above-mentioned mixed powder at 840°C for 2 hours to obtain a pre-fired material;

[0031] (4) Sand milling: put the above-mentioned calcined material into a sand mill, add auxiliary components, deionized water with a total weight of 50wt% of main components and auxiliary components, and 0.6-1.0wt% of total weight of main components and auxi...

Embodiment 2

[0041] (1) prepare materials according to the following formula:

[0042] Main ingredient: Fe 2 o 3 53mol%, MnO24mol%, ZnO23mol%;

[0043] Auxiliary components (according to the mass percentage of main components): P 2 o 5 0.003wt%, Bi 2 o 3 0.02wt%, MoO 3 0.005wt%, Ta 2 o 5 0.01wt%, ZrO 2 0.03wt%;

[0044] (2) Mixing: the main components are mixed, and the powder is obtained after mixing for 1 hour with a vibrating ball mill;

[0045](3) Calcination: Precalcining the above-mentioned mixed powder at 900°C for 2 hours to obtain a calcining material;

[0046] (4) Sand milling: put the above-mentioned calcined material into a sand mill, add auxiliary components, deionized water with a total weight of 50wt% of main components and auxiliary components, and 0.6-1.0wt% of total weight of main components and auxiliary components. polyvinyl alcohol;

[0047] Sand milling is carried out in stages. The speed of the sand mill at each stage is fast and then slow. The firs...

Embodiment 3

[0056] (1) prepare materials according to the following formula:

[0057] Main ingredient: Fe 2 o 3 54mol%, MnO23mol%, ZnO23mol%;

[0058] Auxiliary components (according to the mass percentage of main components): P 2 o 5 0.003wt%, CaO 0.01wt%, Bi 2 o 3 0.02wt%, MoO 3 0.01wt%, Nb 2 o 5 0.01wt%;

[0059] (2) Mixing: the main components are mixed, and the powder is obtained after mixing for 0.5 hours with a vibrating ball mill;

[0060] (3) Calcination: Precalcining the above-mentioned mixed powder for 2 hours at 880°C to obtain a calcining material;

[0061] (4) Sand milling: put the above-mentioned calcined material into a sand mill, add auxiliary components, deionized water with a total weight of 50wt% of main components and auxiliary components, and 0.6-1.0wt% of total weight of main components and auxiliary components. polyvinyl alcohol;

[0062] Sand milling is carried out in stages. The speed of the sand mill at each stage is first fast and then slow. Th...

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Abstract

The invention discloses a high magnetic conductivity and low loss factor manganese-zinc ferrite material and a manufacture process thereof. The high magnetic conductivity and low loss factor manganese-zinc ferrite material mainly comprises the main components in percent by mole (calculated by oxide) of 51-56 mol percent of Fe2O3, 22-29 percent of MnO and 20-25 mol percent of ZnO and the auxiliarymaterials including P2O5, CaO, SiO2, Bi2O3 and the like. The manganese-zinc ferrite material with high magnetic conductivity, low magnetic conductivity temperature factor and low relevant loss factoris prepared by the steps of mixing, pre-roasting, sanding, pelleting, forming and sintering. The invention has the advantages of simple and proper formulation and advanced and reasonable manufacture process. The prepared manganese-zinc ferrite material has property exceeding CL11F-brand property and superior to the H5C2-brand material property of a TDK company in Japan.

Description

technical field [0001] The invention relates to a manganese-zinc ferrite material, in particular to a manganese-zinc ferrite material with high magnetic permeability and low loss factor and its manufacturing process. Background technique [0002] Soft ferrite is based on Fe 2 o 3 The main component of ferrimagnetic oxides, manganese zinc ferrite belongs to the category with the largest output and consumption in soft ferrite, especially in the field of digital network communication and optical fiber communication, for high magnetic permeability manganese zinc iron There is a great demand for choke coils, broadband transformers, pulse transformers and filters made of ferrite cores. The high-permeability manganese-zinc ferrite material is in response to such needs and is moving towards high inductance, small size and thinness. direction of development. In practical applications, with the rapid development of communication, computer, and network technologies, the requirements...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/26C04B35/622
Inventor 刘先松徐杰胡锋朱德如
Owner TIANCHANG CITY ZHAOTIAN MAGNETOELECTRICITY TECH
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