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Wide-temperature and low-loss soft ferrite

A soft ferrite, low-loss technology, applied in the direction of magnetic objects, magnetic materials, inorganic materials, etc., can solve the problem of power consumption increase, achieve the effect of reducing loss, uniform crystal grains, and reducing pores

Active Publication Date: 2017-09-26
ZHONGDE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, ferrite has two major development trends, one is to develop towards high frequency, and the other is to develop towards ultra-low power consumption, but the power consumption of low-power ferrite has a strong temperature dependence, making it only At a certain temperature, it has low power consumption, and its power consumption will rise rapidly when the temperature changes, so low-power ferrite can only be used at a certain temperature

Method used

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  • Wide-temperature and low-loss soft ferrite

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Effect test

Embodiment 1

[0017] A kind of soft magnetic ferrite with wide temperature and low loss, its raw materials include by weight: 100 parts of main materials, 0.67 parts of auxiliary materials, 0.4 parts of surfactants, 0.15 parts of defoamers, and 5 parts of binders;

[0018] The raw materials of the main ingredients include by molar ratio: SnO 2 0.65 parts, MnO 12.9 parts, ZnO 33.5 parts, Fe 2 o 3 52.95 copies;

[0019] The raw material of auxiliary material comprises by weight: Co 2 o 3 0.15 parts, Ta 2 o 5 0.065 parts, CaCO 3 0.25 parts, SiO 2 0.12 parts, V 2 o 5 0.035 parts, Li 2 CO 3 0.015 parts, ZrO 2 0.03 parts.

Embodiment 2

[0021] A kind of soft magnetic ferrite with wide temperature and low loss, its raw materials include by weight: 100 parts of main materials, 0.56 parts of auxiliary materials, 0.5 parts of dodecyl dimethyl ammonium bromide, 0.1 parts of defoaming agent, polyvinyl alcohol aqueous solution 6 copies;

[0022] The defoamer is a mixture of polyoxypropylene polyoxyethylene glyceryl ether and higher alcohol fatty acid ester complex;

[0023] The raw materials of the main ingredients include by molar ratio: SnO 2 0.6 parts, MnO 12.5 parts, ZnO 33.2 parts, Fe 2 o 3 53.7 copies;

[0024] The raw material of auxiliary material comprises by weight: Co 2 o 3 0.14 parts, Ta 2 o 5 0.07 parts, CaCO 3 0.2 parts, nano-SiO 2 0.15 parts, V 2 o 5 0.03 parts, Li 2 CO 3 0.02 parts, ZrO 2 0.02 copies;

[0025] In the preparation process of wide temperature and low loss soft ferrite, the SnO 2 , MnO, ZnO, Fe 2 o 3 Mix with surfactant, grind for 90 minutes, heat up to 400°C, p...

Embodiment 3

[0027] A kind of soft magnetic ferrite with wide temperature and low loss, its raw materials include by weight: 100 parts of main materials, 0.78 parts of auxiliary materials, 0.3 parts of cetyltrimethylammonium chloride, 0.2 parts of defoaming agent, epoxy resin glue 4 parts;

[0028] The defoamer is a mixture of polyoxypropylene polyoxyethylene glyceryl ether and higher alcohol fatty acid ester complex;

[0029] The raw materials of the main ingredients include by molar ratio: SnO 2 0.7 parts, MnO 13.3 parts, ZnO 33.8 parts, Fe 2 o 3 52.2 copies;

[0030] The raw material of auxiliary material comprises by weight: Co 2 o 3 0.16 parts, Ta 2 o 5 0.06 parts, CaCO 3 0.3 parts, nano-SiO 2 0.1 parts, V 2 o 5 0.04 parts, Li 2 CO 3 0.01 parts, ZrO 2 0.04 copies;

[0031] In the preparation process of wide temperature and low loss soft ferrite, the SnO 2 , MnO, ZnO, Fe 2 o 3 Mix with surfactant, grind for 60 minutes, heat up to 450°C, pre-fire for 30 minutes...

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Abstract

The invention discloses wide-temperature and low-loss soft ferrite. The wide-temperature and low-loss soft ferrite comprises the following raw materials in parts by weight: 100 parts of a main material, 0.56-0.78 part of an auxiliary material, 0.3-0.5 part of a surfactant, 0.1-0.2 part of a defoaming agent and 4-6 parts of a bonding agent, wherein the main material comprises the following raw materials according to a molar ratio: 0.6-0.7 part of SnO2, 12.5-13.3 parts of MnO, 33.2-33.8 parts of ZnO and 52.2-53.7 parts of Fe2O3; the auxiliary material comprises the following raw materials in parts by weight: 0.14-0.16 part of Co2O3, 0.06-0.07 part of Ta2O5, 0.2-0.3 part of CaCO3, 0.1-0.15 part of SiO2, 0.03-0.04 part of V2O5, 0.01-0.02 part of Li2CO3 and 0.02-0.04 part of ZrO2.

Description

technical field [0001] The invention relates to the technical field of ferrite materials, in particular to a soft ferrite with wide temperature and low loss. Background technique [0002] At present, ferrite has two major development trends, one is to develop towards high frequency, and the other is to develop towards ultra-low power consumption, but the power consumption of low-power ferrite has a strong temperature dependence, making it only At a certain temperature, it has low power consumption, and its power consumption will rise rapidly when the temperature changes, so the low power consumption ferrite can only be used at a certain temperature. [0003] With the rapid development of power electronics technology, in order to adapt to the application of ferrite in the open air, low temperature, north-south, winter and summer and other occasions with large environmental temperature differences, it is necessary to provide a new ferrite that has good performance and has Goo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/26C04B35/622C04B35/632C04B35/634C04B35/626H01F1/37
CPCC04B35/2633C04B35/265C04B35/622C04B35/6261C04B35/62675C04B35/632C04B35/63488C04B2235/3203C04B2235/3208C04B2235/3239C04B2235/3244C04B2235/3251C04B2235/3262C04B2235/3275C04B2235/3284C04B2235/3293C04B2235/3418H01F1/344H01F1/37
Inventor 瞿德林王久如王晓祥李丛俊
Owner ZHONGDE ELECTRONICS
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