Manganese zinc ferrite material for high-power low-power-consumption high-frequency transformer and preparation method

A manganese-zinc ferrite, high-frequency transformer technology, applied in the direction of inductance/transformer/magnet manufacturing, inorganic material magnetism, electrical components, etc. Issues such as broadband, high and low Curie point, and limited range of use

Inactive Publication Date: 2018-08-14
NANTONG GUANYOUDA MAGNET
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] For example, a Chinese patent application (CN101183582A) discloses a manganese-zinc power ferrite material with high saturation BS and low loss. It obtains BS (greater than 460T at 100 degrees) by optimizing the formula and doping, especially adding 2 to 4mol% Ni0. High-frequency power consumption is less than 150KW/m at 500KHZ, 50mT, and 100 degrees 3 , but there is no mention of wide temperature broadband and Curie point height, so its application range is limited
[0006] In addition,

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  • Manganese zinc ferrite material for high-power low-power-consumption high-frequency transformer and preparation method
  • Manganese zinc ferrite material for high-power low-power-consumption high-frequency transformer and preparation method

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with embodiment.

[0022] Example 1. Manganese-zinc ferrite material for high-power and low-power high-frequency transformers. The manganese-zinc ferrite material is composed of main components and additives. The main components are calculated as oxides according to the mass percentage of substances: Fe 2 0 3 70%, Zn0 is 4.5%, NiO is 3.5%, Sm 2 o 3 is 1%, and the balance is Mn 3 0 4 .

[0023] The additives are calculated as oxides by mass percentage: Ca0: 0.025-0.075%, Nb 2 0 5 : 0.02~0.08%, V 2 0 5 : 0.015~0.08%, Ti0 2 : 0.05~0.3%, C0 2 0 3 : 0.09~0.65%, Zr0 2 : 0.003~0.15%, Ni0: 0.04~0.45%, Mg0: 0.02~0.15%, Li 2 O: 0.04 to 0.068%.

[0024] The preparation method of the manganese-zinc ferrite material for the high-power low-power high-frequency transformer includes the following steps.

[0025] Step 1, by the mass percentage Fe of described main component 2 0 3 73.5%, Zn0 is 5%, Sm ...

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Abstract

The invention belongs to the technical field of soft magnetic ferrite materials. A manganese zinc ferrite material is formed by main components and additives. According to a mass percent of a substance, and calculated by oxides, the main components comprise: 70-72.5% of Fe2O3, 4.5-5.5% of ZnO, 1.5-3.5% of NiO, 1-2% of Sm2O3, and the balance of Mn3O4. The manganese zinc ferrite material has the following beneficial effects: an initial permeability is 3500+(-)25%, and the valley point power loss within a temperature area in 25-140 DEG C is up to 270 kw/m<3>, TC is greater than 270 DEG C. The power loss is less than 280 kw/m<3> under the conditions of 500 KHZ, 50 mT, and 100 DEG C, and the power loss is less than 480 kw/m<3> under the conditions of 1 MHZ, 30 mT, and 100 DEG C.

Description

technical field [0001] The invention belongs to the technical field of ferrite electronic materials, and in particular relates to a manganese-zinc ferrite material for high-power and low-power high-frequency transformers. 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 temperature adaptation range, higher Curie temperature, therefore,...

Claims

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Application Information

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IPC IPC(8): C04B35/40C04B35/622C04B35/64H01F1/36H01F41/02
CPCC04B35/2608C04B35/265C04B35/622C04B35/64C04B2235/3203C04B2235/3208C04B2235/3224C04B2235/3232C04B2235/3239C04B2235/3244C04B2235/3251C04B2235/3263C04B2235/3274C04B2235/3275C04B2235/3279C04B2235/3284H01F1/36H01F41/0266
Inventor 刘运戴加兵
Owner NANTONG GUANYOUDA MAGNET
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