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Wide-temperature-range high-frequency low-loss magnetic material and preparing technology thereof

A magnetic material and low-loss technology, applied in the direction of magnetic materials, magnetic objects, inorganic materials, etc., can solve problems such as inability to guarantee mass production, and achieve low initial magnetic permeability, good wide temperature characteristics, good high frequency and low power loss Effect

Inactive Publication Date: 2016-10-12
泰州茂翔电子器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the development trend of high-frequency electronic communication network, especially mobile network, is very rapid. Due to the increase of functions and the improvement of technology, higher requirements are put forward for the characteristics of soft magnetic ferrite materials used in power supplies, that is, soft magnetic materials are required It has better wide temperature characteristics and high frequency and low power loss characteristics. It is hoped that the characteristic indicators of the material will reach: initial magnetic permeability: about 2000, and compared with the initial magnetic permeability at 25°C, the drop at -25°C is not more than 10% ;Magnetic core loss: The test conditions are: 500kc, 50mT, the technical requirements are about 150KW / m3 at 25°C, about 130KW / m3 at 80°C, and about 125KW / m3 at 100°C, and the materials currently used cannot To ensure mass production of products that meet this requirement, it is necessary to develop a new type of soft ferrite material to meet this requirement

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  • Wide-temperature-range high-frequency low-loss magnetic material and preparing technology thereof
  • Wide-temperature-range high-frequency low-loss magnetic material and preparing technology thereof
  • Wide-temperature-range high-frequency low-loss magnetic material and preparing technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A wide-temperature, high-frequency, low-loss magnetic material of the present invention, the formula of the material is composed of three main raw materials of iron oxide, manganese tetraoxide and zinc oxide to form a basic formula, and several additives are added on this basis. The formula consists of The scope is as follows:

[0029] Iron oxide (Fe 2 o 3 ): 69.93g;

[0030] Trimanganese tetraoxide (Mn 3 o 4 ): 23.9g;

[0031] Zinc oxide (ZnO): 6.4g;

[0032] Silicon dioxide (SiO 2 ): 0.005g;

[0033] Calcium Carbonate (CaCO 3 ): 0.04g;

[0034] Cobalt tetroxide (Co 3 o 4 ): 0.36g;

[0035] Phosphorus pentoxide (P 2 o 5 ): 0.002g;

[0036] Tin dioxide (SnO 2 ): 0.1g;

[0037] Sodium bicarbonate (NaHCO 3 ): 0.01g;

[0038] Zirconia (ZrO 2 ): 0.02g;

[0039] Titanium dioxide (TiO 2 ): 0.2g;

[0040] Tantalum pentoxide (Ta 2 o 5 ): 0.015g.

[0041] A preparation process for a wide temperature, high frequency, low loss magnetic material. First, th...

Embodiment 2

[0043] A wide-temperature, high-frequency, low-loss magnetic material of the present invention, the formula of the material is composed of three main raw materials of iron oxide, manganese tetraoxide and zinc oxide to form a basic formula, and several additives are added on this basis. The formula consists of The scope is as follows:

[0044] Iron oxide (Fe 2 o 3 ): 70.31g;

[0045] Trimanganese tetraoxide (Mn 3 o 4 ): 23.87g;

[0046] Zinc oxide (ZnO): 6.12g;

[0047] Silicon dioxide (SiO 2 ): 0.006g;

[0048] Calcium Carbonate (CaCO 3 ): 0.05g;

[0049] Cobalt tetroxide (Co 3 o 4 ): 0.45g;

[0050] Phosphorus pentoxide (P 2 o 5 ): 0.003g;

[0051] Tin dioxide (SnO 2 ): 0.15g;

[0052] Sodium bicarbonate (NaHCO 3 ): 0.01g;

[0053] Zirconia (ZrO 2 ): 0.023g;

[0054] Titanium dioxide (TiO 2 ): 0.15g;

[0055] Tantalum pentoxide (Ta 2 o 5 ):0.02g;

[0056] Molybdenum trioxide (MoO 3 ): 0.02g.

[0057] A preparation process for a wide temperature, hi...

Embodiment 3

[0059] A wide-temperature, high-frequency, low-loss magnetic material of the present invention, the formula of the material is composed of three main raw materials of iron oxide, manganese tetraoxide and zinc oxide to form a basic formula, and several additives are added on this basis. The formula consists of The scope is as follows:

[0060] Iron oxide (Fe 2 o 3 ): 70.60g;

[0061] Trimanganese tetraoxide (Mn 3 o 4 ): 24.0g;

[0062] Zinc oxide (ZnO): 4.92g;

[0063] Silicon dioxide (SiO 2 ): 0.007g;

[0064] Calcium Carbonate (CaCO 3 ): 0.055g;

[0065] Cobalt tetroxide (Co 3 o 4 ): 0.35g;

[0066] Phosphorus pentoxide (P 2 o 5 ): 0.005g;

[0067] Tin dioxide (SnO 2 ): 0.12g;

[0068] Zirconia (ZrO 2 ): 0.03g;

[0069] Titanium dioxide (TiO 2 ): 0.19g;

[0070] Tantalum pentoxide (Ta 2 o 5 ):0.015g;

[0071] Molybdenum trioxide (MoO 3 ): 0.02g.

[0072] A preparation process for a wide temperature, high frequency, low loss magnetic material. First, th...

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Abstract

The invention relates to a magnetic material with wide temperature, high frequency and low loss. The formula of the material is composed of three main raw materials: iron oxide, manganese tetraoxide and zinc oxide, and several additives are added on the basis; a wide range The preparation process of high-temperature, high-frequency and low-loss magnetic materials, firstly, detection and analysis, mixing, and after vibrating milling, sheet rolling, shaping, pre-burning, coarse crushing, fine crushing, pulping, formula analysis and adjustment, spray granulation and other processes , completed the powder preparation, and used qualified materials to manufacture the corresponding ferrite core. The main process of magnetic core manufacturing is: powder humidity control, molding, sintering, grinding, cleaning, sub-testing, packaging. Compared with the prior art, the present invention has the following advantages: the initial magnetic permeability of the obtained material is low, the magnetic core loss rate is low, and the initial magnetic permeability μ i The drop is low, which meets the requirements of soft magnetic materials with better wide temperature characteristics and high frequency and low power loss characteristics.

Description

technical field [0001] The invention relates to a wide temperature high frequency low loss magnetic material. [0002] The invention relates to a preparation process of a wide-temperature, high-frequency, low-loss magnetic material. Background technique [0003] At present, the development trend of high-frequency electronic communication network, especially mobile network, is very rapid. Due to the increase of functions and the improvement of technology, higher requirements are put forward for the characteristics of soft magnetic ferrite materials used in power supplies, that is, soft magnetic materials are required It has better wide temperature characteristics and high frequency and low power loss characteristics. It is hoped that the characteristic indicators of the material will reach: initial magnetic permeability: about 2000, and compared with the initial magnetic permeability at 25°C, the drop at -25°C is not more than 10% ;Magnetic core loss: The test conditions are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/38C04B35/622C04B35/626H01F1/36H01F41/02
CPCC04B35/2633C04B35/622C04B35/626C04B2235/3201C04B2235/3208C04B2235/3232C04B2235/3244C04B2235/3251C04B2235/3256C04B2235/3263C04B2235/3277C04B2235/3284C04B2235/3293C04B2235/34C04B2235/3418H01F1/344H01F1/36H01F41/02
Inventor 李前军颜茂山杜兴龙徐宸袁翔季长贵马鑫圣
Owner 泰州茂翔电子器材有限公司
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