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Wide-temperature, high-frequency and low-power-consumption manganese zinc iron oxidation material and method for manufacturing same

A ferrite material, manganese-zinc power consumption technology, applied in the field of manganese-zinc ferrite material and its preparation, can solve the problems of insufficient product grade, low process technology, backward equipment, etc.

Active Publication Date: 2013-02-13
眉山市宇泰电子设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still problems in our country where the technology is relatively low, and some special process equipment is relatively backward, resulting in insufficient product grades, which need to be further resolved

Method used

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  • Wide-temperature, high-frequency and low-power-consumption manganese zinc iron oxidation material and method for manufacturing same
  • Wide-temperature, high-frequency and low-power-consumption manganese zinc iron oxidation material and method for manufacturing same
  • Wide-temperature, high-frequency and low-power-consumption manganese zinc iron oxidation material and method for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The controllable atmosphere bell jar sintering furnace is connected with the heat exchanger through pipelines, and the control system is respectively connected with the bell jar furnace and the heat exchanger. The temperature in the furnace can be well controlled by using a heat exchanger. The control system can detect the temperature in the furnace, and control the heat exchanger, the content of pure nitrogen, the content of air, etc. The bell furnace is connected to the heat exchanger through a pipe, and a regulating valve is set in the middle of the pipe, and the heat can be better transferred through the regulating valve. The pure nitrogen device is connected to the bell furnace through pipes, and the air inlet is connected to the bell furnace through pipes.

[0047] When the control system detects that the oxygen content is high, the vacuum pump is used to extract the vacuum, so that the furnace body is in a negative pressure state, and nitrogen is filled to reduc...

Embodiment 2

[0057] First select the Fe produced by Baosteel 2 o 3 53.3 mol%, and then fix the ZnO10.2mol% produced by Jinghua, the Mn of Hunan 3 o 4 36.5mol%; adopt dry strong mixing, the time is 45min, and then pre-fire in the rotary kiln, the control temperature is 950 ℃, the time is 3 hours; after 2.0 hours of sand grinding, the particle size of the powder is controlled at the average particle size Diameter 1.0-1.2μm; then add pure water 35wt%, dioctyl phosphate 0.2wt%, ZrO 2 0.025wt%, TiO 2 0.015wt%, 0.025wt%, Nb 2 o 5 0.055wt%. Then the spray particles are pressed into 25*15*10 rings. The controllable atmosphere bell jar sintering furnace is adopted, the sintering temperature is 1320°C, and the temperature is kept for 4 hours. The temperature used in the debinding section of the controlled atmosphere bell jar sintering furnace used in the sintering step is 500°C, and the temperature is slowly raised during the debinding process. The speed is 2°C / min, the volume percentage ...

Embodiment 3

[0061] First select the Fe produced by Baosteel 2 o 3 The molar percentage is 55.0%, and then the ZnO produced by Jinghua is fixed, and the molar percentage is 10.2%, and the Mn in Hunan 3 o 4， Its molar percentage is 36.5%; use dry strong mixing, the time is 45min, and then pre-fire in the rotary kiln, the control temperature is 950 ℃, the time is 3 hours; after 2.0 hours of sand grinding, the particle size of the powder is Control the average particle size at 1.0 μm; then add 38wt% pure water, 0.2wt% dioctyl phosphate, ZrO 2 0.025wt%, TiO 2 200ppm, HfO 2 0.0148wt%, Nb 2 o 5 0.055wt%. Then the spray particles are pressed into 25*15*10 rings. The controllable atmosphere bell jar sintering furnace is adopted, the sintering temperature is 1320°C, and the temperature is kept for 4 hours. The temperature used in the debinding section of the controlled atmosphere bell jar sintering furnace used in the sintering step is 500°C, and the temperature is slowly raised during the ...

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Abstract

The invention discloses a wide-temperature, high-frequency and low-power-consumption manganese zinc iron oxidation material and a method for manufacturing the same. The material comprises, by molar percentage, 50.5% to 55.0% of Fe2O3, 7.0% to 11.5% of ZnO, 30.5% to 38.5% of Mn3O4 and additive compositions of Si02, Ca0, Nb205, Zr02, TiO2, NiO and Ta2O5. The method for manufacturing the material comprises steps of: fixing a molar percentage content of the Fe2O3 and fixing contents of the ZnO and the Mn3O4; performing ball-milling for 45 minutes; pre-sintering materials after ball-milling in a rotary kiln; and performing sanding for 2 hours so that powder grain sizes are in a range from 1.0 mu m to 1.2 mu m, adding additives and the like. According to the wide-temperature, high-frequency and low-power-consumption manganese zinc iron oxidation material and the method for manufacturing the same, excellent high-frequency performances are provided for the material, demands of users for temperature characteristics are considered simultaneously, and magnetic cores of a large amount of imported magnetic cores of PC50 and 3F4 and the like in prior home appliance and communication industries can be replaced.

Description

technical field [0001] The invention relates to a manganese-zinc ferrite material and a preparation method thereof, in particular to a manganese-zinc ferrite material with a wide temperature and high frequency and low power consumption and a preparation method thereof. Background technique [0002] With the development and upgrading of color TVs, computers and various communication equipment, various inductors, filters, and transformer core materials are required to be expanded to higher frequency of use and lower power loss. Therefore, major companies in the world are competing to develop In the past 20 years of development, PC30 and PC40 grade materials with tens of kilohertz have been developed, and PC44 materials with lower power consumption and PC50 grade materials with higher frequency (up to 500kHz or more) have been developed. These high-performance products are widely used in high-definition digital color TVs, high-resolution computer monitors, pulse code modulation...

Claims

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Application Information

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IPC IPC(8): C04B35/26C04B35/622
Inventor 余文生伍鸿励
Owner 眉山市宇泰电子设备有限公司
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