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A kind of manganese zinc soft magnetic ferrite material and preparation method thereof

A manganese-zinc soft magnet and oxygen body technology is applied in the field of manganese-zinc soft magnetic ferrite materials, which can solve the problems of inability to achieve high saturation magnetic flux density and increased material loss, and achieve high saturation magnetic induction intensity, convenient operation, and low The effect of loss

Active Publication Date: 2016-08-24
SHANGHAI BAOSTEEL MAGNETICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, no matter how you increase Bs(0), if you cannot adjust Tc to the optimum temperature, you cannot achieve high saturation flux density.
If you only consider increasing Tc, and using excessive iron-rich formula, it will inevitably lead to an increase in material loss

Method used

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  • A kind of manganese zinc soft magnetic ferrite material and preparation method thereof
  • A kind of manganese zinc soft magnetic ferrite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Weigh according to the formula

[0027] Main component: 53.5mol% Fe 2 o 3 , 8.8mol% of ZnO, 37.7mol% of MnO;

[0028] Additive: 0.035wt%CaCO 3 , 0.005wt% SiO 2 , 0.025wt%V 2 o 5 , 0.025wt%Nb 2 o 5 , 0.01wt%ZrO 2 , the mass percent of each component in the additive formula is calculated relative to the total mass of the main component.

[0029] 2. Put the weighed main components into the mixer in turn for 45 minutes, mix them in the flip vibrating ball mill for 25 minutes, pre-fire in the rotary sintering furnace at 1050°C for 50 minutes, and then pass through the straight row Vibrating ball mill for primary crushing for 25 minutes, feeding flow rate of 10-15Kg / min, and then secondary crushing in vertical sand mill for 100 minutes, adding additives at the same time of secondary crushing, after secondary crushing, the slurry The particle size is 1.2-1.5 μm. After the mixture is sprayed and granulated, it is pressed into a ring-shaped sample with an outer dia...

Embodiment 2

[0033] 1. Weigh according to the formula

[0034] Main component: 52.7mol% Fe 2 o 3 , 5.5mol% of ZnO, 41.8mol% of MnO;

[0035] Additive: 0.05wt%CaCO 3 , 0.01wt%SiO 2 , 0.05wt%V 2 o 5 , 0.03wt%Nb 2 o 5 , 0.03wt%ZrO 2 , 0.3wt%NiO, 0.1wt%Co 3 o 4 The mass percent of each component in the additive formula is calculated relative to the total mass of the main component.

[0036] 2. Put the weighed main components into the mixer in turn for 45 minutes, mix them in the flip vibrating ball mill for 25 minutes, pre-fire in the rotary sintering furnace at 1050°C for 50 minutes, and then pass through the straight row Vibrating ball mill for primary crushing for 25 minutes, feeding flow rate of 10-15Kg / min, and then secondary crushing in vertical sand mill for 100 minutes, adding additives at the same time of secondary crushing, after secondary crushing, the slurry The particle size is 1.2-1.5 μm. After the mixture is sprayed and granulated, it is pressed into a ring-shaped s...

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Abstract

The invention relates to a manganese-zinc soft magnetic ferrite material, and particularly relates to a manganese-zinc soft magnetic ferrite material which has high saturation flux density and low loss characteristic and a preparation method thereof. The manganese-zinc soft magnetic ferrite material comprises the main components and an additive, wherein the main components comprise the following components by molar percent: 52.5-54.0% of Fe2O3, 5-9% of ZnO and 38-42.5% of MnO; the additive comprises the following components by weight percent: 0.03-0.08% of CaCO3, 0-0.3% of Co3O4, 0.001-0.01% of SiO2, 0.02-0.06% of V2O5, 0.02-0.05% of Nb2O5, 0.005-0.03% of ZrO2 and 0-0.3% of NiO, wherein the weight percentages of the components of the additive are calculated based on the total weight of the main components. The manganese-zinc soft magnetic ferrite material has high saturation flux density and low loss characteristic.

Description

technical field [0001] The invention relates to a manganese-zinc soft magnetic ferrite material, in particular to a manganese-zinc soft magnetic ferrite material with high saturation magnetic induction and low loss characteristics and a preparation method thereof. Background technique [0002] As an important basic functional material, soft ferrite materials are widely used in electronic industries such as communications, sensors, audio-visual equipment, and transformers. With the popularization of digital TV sets and notebook computers, the Internet is the center, and the rapid growth of communication markets involving online education, multimedia, and ISDN networks has made electronic equipment develop towards light, thin, and miniaturized. This will inevitably require reducing the size of the power supply. Higher and stricter requirements are put forward for the power supply. Power supply materials not only require high saturation magnetic strength and low loss, but also...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/38C04B35/622
Inventor 陈元峻顾燮峰倪雷敏
Owner SHANGHAI BAOSTEEL MAGNETICS