Manganese zinc ferrite material with wide temperature and low power as well as preparation method thereof

A ferrite material, power consumption manganese-zinc technology, applied in the direction of magnetic materials, inorganic material magnetism, magnetic objects, etc., can solve the problems of lack of regulation, lack of loss information, etc., to reduce hysteresis loss and eddy current loss, reduce Eddy current loss, effect of increasing saturation magnetic flux density

Active Publication Date: 2017-02-15
马鞍山新康达磁业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The material lacks loss information above 120 °C, and lacks ...

Method used

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  • Manganese zinc ferrite material with wide temperature and low power as well as preparation method thereof
  • Manganese zinc ferrite material with wide temperature and low power as well as preparation method thereof
  • Manganese zinc ferrite material with wide temperature and low power as well as preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: take main component raw material by weighing following main component content: Fe 2 o 3 The content is 53.1mol%, the ZnO content is 9.2mol%, and the MnO content is 37.7mol%. It is pre-calcined after sand-milling and spray-drying. The pre-calcination temperature is 900°C and the time is 120 minutes. Add the auxiliary component raw materials weighed in proportion to the calcined material. The content of auxiliary components based on the total weight of the main components is: CaCO 3 : 0.04%, Nb 2 o 5 : 0.03%, Co 2 o 3 : 0.4%, SnO 2 : 0.1%, NaHCO 3 : 0.02%, carry out sand grinding, the time is 120 minutes, and the average grain size of the sand abrasive is 0.9 μm. Then spray granulate the sand abrasive, and press the H25 / 15 / 10 ring sample with a molding machine.

Embodiment 2

[0037] Embodiment 2: take main component raw material by weighing following main component content: Fe 2 o 3 content of 53.1mol%, ZnO content of 9.2mol%, MnO content of 37.7mol%, pre-calcined after sand milling and spray drying, the pre-calcination temperature is 900 ℃, the time is 120 minutes; The proportion of auxiliary component raw materials taken by weight, the content of auxiliary components by the total weight of the main component is CaCO 3 : 0.04%, Nb 2 o 5 : 0.03%, Co 2 o 3 : 0.4%, SnO 2 : 0.1%, NaHCO 3 : 0.02%, carry out sand grinding, the time is 120 minutes, and the average grain size of the sand abrasive is 0.9 μm. Then spray granulate the sand abrasive, and press the H25 / 15 / 10 ring sample with a molding machine.

Embodiment 3

[0046] Embodiment 3: take main component raw material by weighing following main component content: Fe 2 o 3 content of 53.1mol%, ZnO content of 9.2mol%, MnO content of 37.7mol%, pre-calcined after sand milling and spray drying, the pre-calcination temperature is 900 ℃, the time is 120 minutes; The auxiliary component raw material that the ratio takes (the auxiliary component content by main component gross weight is: CaCO 3 : 0.04%, Nb 2 o 5 : 0.03%, Co 2 o 3 : 0.4%, SnO 2 : 0.1%, NaHCO 3 : 0.02%, carry out sand grinding, the time is 120 minutes, and the average grain size of the sand abrasive is 0.9 μm. Then carry out spray granulation on this abrasive material, press the H25 / 15 / 10 ring sample with a molding machine, sinter and keep it warm for 60 minutes when the temperature is lowered to 1200°C.

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PUM

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Abstract

The invention relates to a manganese zinc ferrite material with wide temperature and low power. The material comprises main components and auxiliary components; the main components comprise the following components in percentages by mol: 52.7-53.5mol% of Fe2O3, 8.6-9.6mol% of ZnO, and the balance being MnO; based on the total weight of the main components, the auxiliary components comprise the following components in percentages by weight: 0.03-0.04% of CaCO3, 0.02-0.03% of Nb2O5, 0.4-0.5% of Co2O3, 0.05-0.15% of SnO2, and 0.0074-0.022% of NaO2 (NaO2 is added in the form of sodium bicarbonate). Insulation treatment for controlling atmosphere is carried out at 1200 DEG C in the sintering cooling stage. The ferrite material has low power consumption in the temperature range of 25-140 DEG C, and at the same time, the material has high saturation magnetic flux density and high magnetic permeability.

Description

technical field [0001] The invention belongs to the field of advanced preparation and application of high-performance soft magnetic ferrite materials, and relates to a wide temperature (25°C-140°C) low-power manganese-zinc power ferrite material and its preparation process based on Na-doped microstructure regulation . Background technique [0002] Manganese zinc ferrite is a kind of oxide soft magnetic material widely used in communication, new energy, automotive electronics, electromagnetic compatibility, IT, home appliances, green lighting and national defense technology and other fields. In outdoor electronic equipment such as new energy vehicle on-board chargers, charging stations / piles, and mobile communication base stations, magnetic components such as transformers, inductors, and choke coils usually work in a wide range of ambient temperatures. For many switching power supplies with variable output power, the temperature rise of the transformer will also change signi...

Claims

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Application Information

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IPC IPC(8): C04B35/38H01F1/36C04B35/63
CPCC04B35/265C04B35/6303C04B2235/3201C04B2235/3208C04B2235/3251C04B2235/3262C04B2235/3275C04B2235/3284C04B2235/3293H01F1/344H01F1/36
Inventor 陈小林赵光李庆
Owner 马鞍山新康达磁业股份有限公司
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