Low-frequency low-power-consumption ferrite material

A ferrite material, low-power technology, applied in the field of low-frequency low-power ferrite materials, can solve problems such as limitation and low saturation magnetization

Inactive Publication Date: 2014-07-02
TIANJIN HAOGAO MAGNETS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low magnetic energy stored in the unit volume of ferrite, the saturation magnetization is also low (usually only 1/3 to 1/5 of pure iron), which li...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A low frequency low power consumption ferrite material, made of Fe 2 o 3 , MnO, ZnO and CaCO 3 composition, where Fe 2 o 3 69.6kg, MnO16.3kg, ZnO14.1kg, CaCO 3 0.04kg.

[0023] The preparation method of the above-mentioned low frequency and low power consumption ferrite material, the specific preparation steps are as follows:

[0024] (1) Weigh Fe 2 o 3 69.6kg, MnO16.3kg, ZnO14.1kg, CaCO 3 0.04kg, polyvinyl alcohol 0.7kg, dispersant (also known as deflocculant, Yuncheng Yuchuan Chemical Co., Ltd.) 0.04kg, defoamer (Xufeng Fine Chemical Factory, Binhai New District, Tianjin) 0.02kg;

[0025] (2) Fe, which was weighed in step (1), 2 o 3 , MnO, and ZnO are mixed, and the powder is pre-fired at 1000°C, and CaCO is added during the sanding process. 3 and polyvinyl alcohol, dispersant, defoamer, sanding for two hours;

[0026] (3) Control the inlet temperature at 460°C and the outlet temperature at 150°C, and spray it into finished materials through the spray towe...

Embodiment 2

[0028] A low frequency low power consumption ferrite material, made of Fe 2 o 3 , MnO, ZnO and CaCO 3 composition, where Fe 2 o 3 70kg, MnO15.9kg, ZnO13.7kg, CaCO 3 0.05kg.

[0029] The preparation method of the above-mentioned low frequency and low power consumption ferrite material, the specific preparation steps are as follows:

[0030] (1) Weigh Fe 2 o 3 70kg, MnO15.9kg, ZnO13.7kg, CaCO 3 0.05kg, polyvinyl alcohol 1kg, dispersant (also known as deflocculant, Yuncheng Yuchuan Chemical Co., Ltd.) 0.02kg, defoamer (Xufeng Fine Chemical Factory, Binhai New District, Tianjin) 0.03kg;

[0031] (2) Fe, which was weighed in step (1), 2 o 3 , MnO, and ZnO are mixed, the powder is pre-fired at 1070 ° C, and CaCO is added during the sanding process 3 and polyvinyl alcohol, dispersant, defoamer, sanding for two hours;

[0032] (3) Control the inlet temperature at 430°C and the outlet temperature at 100°C, and spray the finished product through the spray tower.

Embodiment 3

[0034] A low frequency low power consumption ferrite material, made of Fe 2 o 3 , MnO, ZnO and CaCO 3 composition, where Fe 2 o 3 69.2kg, MnO16.7kg, ZnO14.5kg, CaCO 3 0.02kg.

[0035] The preparation method of the above-mentioned low frequency and low power consumption ferrite material, the specific preparation steps are as follows:

[0036] (1) Weigh Fe 2 o 3 69.2kg, MnO16.7kg, ZnO14.5kg, CaCO 3 0.02kg, polyvinyl alcohol 0.5kg, dispersant (also known as deflocculant, Yuncheng Yuchuan Chemical Co., Ltd.) 0.06kg, defoamer (Xufeng Fine Chemical Factory, Binhai New District, Tianjin) 0.01kg;

[0037] (2) Fe, which was weighed in step (1), 2 o 3 , MnO, and ZnO are mixed, and the powder is pre-fired at 970°C, and CaCO is added during the sanding process. 3 and polyvinyl alcohol, dispersant, defoamer, sanding for two hours;

[0038](3) Control the inlet temperature at 510°C and the outlet temperature at 180°C, and spray it into finished materials through the spray tower....

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Abstract

The invention provides a low-frequency low-power-consumption ferrite material and a preparation method thereof. The low-frequency low-power-consumption ferrite material is prepared from the following components in parts by weight: 69.2-70 parts of Fe2O3, 15.9-16.7 parts of MnO, 13.7-14.5 parts of ZnO, 0.02-0.05 part of CaCO3, 0.5-1 part of poly vinyl alcohol, 0.02-0.06 part of a dispersing agent and 0.01-0.03 part of a defoaming agent. The preparation method comprises the following steps: weighing the components in parts by weight, mixing Fe2O3, MnO and ZnO, presintering at the temperature of 97-1070 DEG C, sanding for two hours while CaCO3, polyvinyl alcohol,the dispersing agent and the defoaming agent are added; spraying into the low frequency low power consumption ferrite material finished product by virtue of a spray tower while the temperature of an inlet is controlled to 430-510 DEG C and the temperature of an outlet is controlled to 100-180 DEG C. The low frequency low power consumption ferrite material has the advantages that power consumption is reduced and a signal resonant frequency can not shift.

Description

technical field [0001] The invention relates to a ferrite material, in particular to a ferrite material with low frequency and low power consumption. Background technique [0002] Ferrite material (ferrite) is composed of several oxides with ferric ions as the main positive ion component, and exhibits ferrimagnetic or antiferromagnetic materials. [0003] Ferrite material is a metal oxide with ferromagnetic properties. In terms of electrical properties, the resistivity of ferrite is much larger than that of metal and alloy magnetic materials, and it also has higher dielectric properties. The magnetic properties of ferrite are also shown to have higher magnetic permeability at high frequencies. Therefore, ferrite has become a widely used non-metallic magnetic material in the field of high frequency and weak current. Due to the low magnetic energy stored in the unit volume of ferrite, the saturation magnetization is also low (usually only 1 / 3 to 1 / 5 of pure iron), which lim...

Claims

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Application Information

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IPC IPC(8): C04B35/26C04B35/622
Inventor 孙晓海
Owner TIANJIN HAOGAO MAGNETS
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