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A kind of high-frequency anti-jamming manganese-zinc ferrite and preparation method thereof

A manganese-zinc ferrite, high-frequency technology, applied in the manufacture of inductors/transformers/magnets, magnetic objects, magnetic materials, etc., to achieve the effects of broad market prospects, good temperature rise characteristics, and low power consumption at high temperatures

Active Publication Date: 2021-01-19
SUZHOU GUANDA MAGNET
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is to provide a 10MHz to 40MHz high-frequency anti-interference manganese-zinc ferrite and its preparation method, which can solve the above-mentioned shortcomings existing in the field of filter application of existing ferrite materials

Method used

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Effect test

Embodiment 1

[0020] A 10MHz to 40MHz high-frequency anti-interference manganese-zinc ferrite, comprising: a main component and an auxiliary component; the main component includes the following components in molar percentages: Fe 2 o 3 50.5mol%, MnO 22.5~33.5mol%, ZnO 16mol%; among them, Fe 2 o 3 Both ZnO and ZnO are high-purity, with a purity of more than 95%. MnO comes from Mn with a large specific surface area. 3 o 4 .

[0021] With respect to the gross weight of described main component, the component of described auxiliary component and content thereof are: Bi 2 o 3 300ppm, MoO 3 3000ppm, Co 2 o 3 50ppm, K 2 CO 3 100ppm, TiO 2 500ppm, P 2 o 5 30ppm, Nb 2 o 5 : 300ppm, of which, Nb 2 o 5 Adding helps to improve the Q value and anti-interference performance of ferrite.

[0022] The preparation method of the above-mentioned 10MHz to 40MHz high-frequency anti-interference manganese-zinc ferrite comprises the following steps:

[0023] (1) Weighing: weigh the main ingredi...

Embodiment 2

[0029] A 10MHz to 40MHz high-frequency anti-interference manganese-zinc ferrite, comprising: a main component and an auxiliary component; the main component includes the following components in molar percentages: Fe 2 o 3 50.5mol%, MnO 22.5mol%, ZnO 27mol%; among them, Fe 2 o 3 Both ZnO and ZnO are high-purity, with a purity of more than 95%. MnO comes from Mn with a large specific surface area. 3 o 4 .

[0030] With respect to the gross weight of described main component, the component of described auxiliary component and content thereof are: Bi 2 o 3 300~2000ppm, MoO 3 3000ppm, Co 2 o 3 2000ppm, K 2 CO 3 100ppm, TiO 2 50ppm, P 2 o 5 300ppm, Nb 2 o 5 : 200ppm.

[0031] The preparation method of the above-mentioned 10MHz to 40MHz high-frequency anti-interference manganese-zinc ferrite comprises the following steps:

[0032] (1) Weighing: weigh the main ingredients and auxiliary ingredients according to the formula;

[0033](2) Doping: add the above-mentioned...

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Abstract

The invention discloses high-frequency anti-interference manganese zinc ferrite and a preparation method thereof. The high-frequency anti-interference manganese zinc ferrite comprises main components and auxiliary components, wherein the main components include Fe2O3, MnO and ZnO; the auxiliary components include Bi2O3, MoO3, Co2O3, K2CO3, TiO2, P2O5 and Nb2O5. The preparation method comprises the following steps: weighing the components, doping, pressing into blanks, arranging the blanks and sintering the blanks. Through scientific material formula design, sintering process optimization, furnace atmosphere optimization and other measures, the prepared manganese zinc ferrite has the advantages of relatively high magnetic conductivity characteristic, high magnetic core Curie temperature, good temperature rise characteristic, flat temperature curve, low high-temperature power consumption, strong adaptability to the working environment and the like, so that safety requirements of EMC are met.

Description

technical field [0001] The invention relates to the field of manganese-zinc ferrite materials, in particular to a 10MHz to 40MHz high-frequency anti-interference manganese-zinc ferrite and a preparation method thereof. Background technique [0002] With the rapid development of the cross-field industrial electronic equipment industry, component equipment is becoming more and more intelligent, miniaturized, low energy consumption and anti-interference. The core of component device performance optimization lies in the optimization of nested soft ferrite cores. Due to its cost advantage, soft ferrite is increasingly used to replace traditional magnetic cores, and its good matching characteristics can also help achieve better characteristics of components, especially in EMC anti-interference applications. [0003] Soft ferrite can be used in equipment and facilities used in conjunction with anti-jamming filters, such as wireless communications, smart meter terminals, industrial...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/38C04B35/64H01F1/34H01F41/02
CPCC04B35/2658C04B35/64C04B2235/3232C04B2235/3251C04B2235/3256C04B2235/3275C04B2235/3298C04B2235/34C04B2235/442C04B2235/6562C04B2235/6565C04B2235/6567C04B2235/6586C04B2235/96H01F1/344H01F41/02
Inventor 柯宇翔
Owner SUZHOU GUANDA MAGNET
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