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Wide-temperature-range low-power-consumption high-Curie-temperature manganese/zinc ferrite material and preparation method thereof

A manganese zinc ferrite, low power consumption technology, applied in the field of ferrite electronic materials, can solve the problems of limited application range, no mention of wide temperature and broadband, Curie temperature, etc., to achieve low power consumption and good consistency , the effect of high Curie temperature

Inactive Publication Date: 2014-07-30
NANTONG GUANYOUDA MAGNET
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, a Chinese patent application (CN1749209A) discloses a high saturation magnetic flux density, low-loss manganese-zinc ferrite material and its preparation method. Through doping and process control, it obtains 100KHZ, 200mT, and 45°C lower than 245kw / m 3 The power consumption and the saturation magnetic flux density of 1194A / m, 50mT, and 25°C are higher than 535mT, but there is also no mention of wide temperature and broadband, and Curie temperature, so its application range is quite limited

Method used

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  • Wide-temperature-range low-power-consumption high-Curie-temperature manganese/zinc ferrite material and preparation method thereof
  • Wide-temperature-range low-power-consumption high-Curie-temperature manganese/zinc ferrite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0025] Embodiment one, by weight percentage, takes by weighing 69.5% Fe 2 0 3 , 6.5% of Zn0 and the rest is Mn0, of which the raw material form of Mn0 is trimanganese tetroxide. Sinosteel Tianyuan-2 type is used, and its Mn% is greater than 71%. It is Shanghai Jinghua, its purity is greater than 99.7%. After mixing the above raw materials, put them into a sand mill and stir them together. Carry out pre-burning, the pre-burning time is 3 hours, carry out secondary sand milling after pre-burning, in the process of sand milling, add pure water, dispersant, defoamer, and add additives, relative to the total amount of the main components, the The mass percentage content of each substance in the additive is: Ca0:0.025%, Nb 2 0 5 :0.02%, V 2 0 5 :0.02%, Ti02 :0.05%, C0 2 0 3 :0.09%, Zr0 2 : 0.003%, Ni0: 0.04%, MgO: 0.02% to control the average particle size to 0.7-0.9 microns, and finally carry out secondary spraying to obtain manganese-zinc ferrite particle powder.

[0026]...

Embodiment 2

[0028] Embodiment two, by weight percentage, take by weighing 72% Fe 2 0 3 , 9.5% of Zn0 and the rest is Mn0, of which the raw material form of Mn0 is trimanganese tetroxide. Sinosteel Tianyuan-2 type is used, and its Mn% is greater than 71%. It is Shanghai Jinghua, whose purity is greater than 99.7%. After mixing the above raw materials, put them into a sand mill and stir them together. The average particle size is controlled to be 0.7-0.9 microns. Carry out pre-burning, the pre-burning time is 4.5 hours, carry out secondary sand milling after pre-burning, in the process of sand milling, add pure water, dispersant, defoamer, and add additives, relative to the total amount of the main components, the The weight percentage content of each substance in the additive is respectively: Ca0:0.07%, Nb 2 0 5 :0.078%, V 2 0 5 :0.08%, Ti0 2 :0.25%, C0 2 0 3 : 0.6%, Zr0: 0.1%, Ni0: 0.4%, MgO: 0.1% to control the average particle size to 0.7-0.9 microns, and finally carry out secon...

Embodiment 3

[0030] Embodiment three, by weight percentage, take by weighing 70% Fe 2 0 3 , 9% of Zn0 and the rest is Mn0, of which the raw material form of Mn0 is trimanganese tetroxide, using Sinosteel Tianyuan-2 type, its Mn% is greater than 71%, the iron red is made of Korean EG iron red, the purity is greater than 99.3%, zinc oxide It is Shanghai Jinghua, whose purity is greater than 99.7%. After mixing the above raw materials, put them into a sand mill and stir them together. The average particle size is controlled to be 0.7-0.9 microns. Carry out pre-burning, the pre-burning time is 4.5 hours, carry out secondary sand milling after pre-burning, in the process of sand milling, add pure water, dispersant, defoamer, and add additives, relative to the total amount of the main components, the The weight percentage content of each substance in the additive is respectively: Ca0:0.03%, Nb 2 0 5 :0.05%, V 2 0 5 :0.02%, Ti0 2 :0.07%, C0 2 0 3 : 0.2%, Zr0: 0.07%, Ni0: 0.35%, MgO: 0.05%...

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Abstract

The invention relates to a wide-temperature-range superposed low-power-consumption high-Curie-temperature manganese / zinc ferrite material and a preparation method thereof, belonging to the technical field of soft magnetic ferrite materials. The manganese / zinc ferrite material comprises main components and additives, wherein the main components comprises the following materials in percentage by mass measured by oxide: 69.0-72.5% of Fe2O3, 6-10% of ZnO and the balance of Mn3O4, Fe2O3, with the sum of the Mn3O4 and ZnO being 100%; the additives comprises the following materials by weight percent measured by oxide: 0.02-0.07% of CaO, 0.02-0.08% of Nb2O5, 0.02-0.08% of V2O5, 0.05-0.25% of TiO2, 0.08-0.6% of CO2O3, 0.003-0.10% of ZrO2, 0.04-0.4% of NiO, 0.02-0.10% of MgO, and the like. The manganese / zinc ferrite material disclosed by the invention is mainly used in the fields of home electronics, communications, optoelectronics, automotive electronics and like, and is especially applicable for new fields of electrodeless lamp electromagnetic coupler core markets as well as automotive electronics, strong current, inverter air conditioners, etc. The manganese / zinc ferrite material has the beneficial effects of low power consumption, wide temperature range, high Curie temperature and the like.

Description

technical field [0001] The invention belongs to the technical field of ferrite electronic materials, in particular to a manganese-zinc ferrite material with wide temperature, high superimposition, low power consumption and high Curie temperature and a preparation method thereof. Background technique [0002] With the continuous and rapid development of the electronic information industry, as the largest output and most widely used soft ferrite material, it has been widely used in various electronic components. The world's major ferrite companies are competing to improve the technical performance of manganese-zinc ferrite materials to adapt to unused application fields. Under the requirements of users such as inverter air conditioners, electrodeless lighting electronics, power electronics, IT industry, communications, and household electronics, A material that requires higher BS, better DC superposition characteristics, lower power loss, wider use frequency and wider temperat...

Claims

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Application Information

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IPC IPC(8): C04B35/38C04B35/622
Inventor 刘运孟力徐良保戴加兵曹照庆
Owner NANTONG GUANYOUDA MAGNET
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