CN103896596A - Method for preparing low resistance ferrite material - Google Patents

Method for preparing low resistance ferrite material Download PDF

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Publication number
CN103896596A
CN103896596A CN201210587425.8A CN201210587425A CN103896596A CN 103896596 A CN103896596 A CN 103896596A CN 201210587425 A CN201210587425 A CN 201210587425A CN 103896596 A CN103896596 A CN 103896596A
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ferrite material
low resistance
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preparation
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曾嘉红
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TIANJIN HAOGAO MAGNETS CO Ltd
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TIANJIN HAOGAO MAGNETS CO Ltd
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Abstract

The invention provides a method for preparing a low resistance ferrite material. The method comprises following steps of weighing the following components in parts by weight: 70.1-71.1 parts of Fe2O3, 20.9-21.9 parts of MnO, 7.5-8.5 parts of ZnO, 0.02-0.06 part of V2O5, 0.001-0.004 part of H2SiO3, 0.02-0.06 part of CaCO3, 0.02-0.06 part of Nb2O5, 0.5-1 part of polyvinyl alcohol, 0.02-0.06 part of dispersing agent, and 0.01-0.03 part of deforming agent, presintering the powdery materials, then sanding for two hours, controlling the inlet temperature to be 430-510DEG C and the outlet temperature to be 100-180DEG C, and spraying by a spray tower so as to obtain the finish product-ferrite material. The low resistance ferrite material greatly improves the inductance of a magnetic core and lowers power consumption.

Description

A kind of preparation method of low resistance Ferrite Material
Technical field
The present invention relates to a kind of preparation method of Ferrite Material, especially a kind of preparation method of low resistance Ferrite Material.
Background technology
Ferrite Material (ferrite) is made up of the several oxide compound using ferric ion as main positive ion composition, and presents ferrimagnetism or anti-ferromagnetic material.
Ferrite Material is that one has ferromagnetic metal oxide.With regard to electrical characteristic, ferritic resistivity is more much bigger than metal, alloy magnetic material, and also has higher dielectric properties.Ferritic magnetic property has higher magnetic permeability while also showing high frequency.Thereby ferrite has become the broad-spectrum nonmetal magnetic material in high frequency light current field.Because the magnetic energy storing in ferrite unit volume is lower, full close also lower (conventionally only have pure iron 1/3～1/5) of the specific magnetising moment, thereby limited it in the low frequency forceful electric power of the magnetic energy density of having relatively high expectations and the application in high-power field.
Ferrite Material is a kind of nonmetal magnetic material, and it is for example, to be formed by ferric oxide and one or more other metal oxides (: nickel oxide, zinc oxide, manganese oxide, magnesium oxide, barium oxide, strontium oxide etc.) preparation sintering.Its relative magnetic permeability can be up to several thousand, and resistivity is 1011 times of metal, and eddy-current loss is little, is suitable for making high-frequency electromagnetic device.Ferrite has Hard Magnetic, soft magnetism, square magnetic, gyromagnet and pressure magnetic five classes.Be once called as ferrite or magnetic ferrites, its production process and outer appearnce be pottery seemingly, thereby also referred to as ferrite.Ferrite is the composite oxides of iron and other one or more suitable metallic element, and character belongs to semi-conductor, and usually used as magnetic medium application, between ferrite magnetic material and metal or alloy magneticsubstance, most important difference is electroconductibility.Conventionally the former resistivity is 102～108 Ω cm, and the latter only has 10-6～10-4 Ω cm.Wherein, to mainly contain MnZn system, NiZn system, MgZn be three major types to soft magnetic ferrite; If press application characteristic parametric classification, can be divided into power ferrite material, high frequency ferrite material, high resistivity material, very high frequency(VHF) soft magnetic ferrite (hexaplanar high frequency ferrite), high frequency high power ferrite material etc.
MnZn based ferrite has high initial permeability, higher saturation induction density, there is low loss at wireless intermediate frequency or low-frequency range, it is the best Ferrite Material of the following band limits magnetic property of 1 megahertz, conventional MnZn based ferrite initial permeability μ i=400-20000, saturation induction density Bs=400-530mT.The resistivity of MgZn series ferrite material is higher, is mainly used in the deflector coil magnetic core of making picture tube or typotron.
NiZn based ferrite frequency of utilization 100kHz～100MHz, the highest 300MHz that uses, this class permeability is lower, and resistivity is very high, is generally 105～107 Ω cm.Therefore, high-frequency vortex loss is little, is the excellent material of the above high band magnetic property of 1MHz, the magnetic permeability μ i=5-1500 of conventional NiZn based material, saturation induction density Bs=250-400mT.
In recent years, along with the application of Ferrite Material is more and more extensive, Ferrite Material has been applied to the manufacture of various inducers, transformer, wave filter and reactance coil, and as hyundai electronics message areas such as computer and peripheral equipment, business automation equipment, digital communication and artificial traffic equipment, internet, household electrical appliance, electromagnetic compatibility equipment, green illumination device, industrial automations, and automobile, aviation, military field.This has just had higher and has had more requirement targetedly the characteristic of Ferrite Material, therefore, needs according to actual needs, develops the Ferrite Material with special performance that more can adapt to modern science and technology needs.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of preparation method of low resistance Ferrite Material.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of low resistance Ferrite Material, by Fe 2o 3, MnO, ZnO, V 2o 5, H 2siO 3, CaCO 3and Nb 2o 5composition, by its parts by weight Fe 2o 370.1-71.1 part, MnO20.9-21.9 part, ZnO7.5-8.5 part, V 2o 50.02-0.06 part, H 2siO 30.001-0.004 part, CaCO 30.02-0.06 part, Nb 2o 50.02-0.06 part.
Preferably, above-mentioned low resistance Ferrite Material, by its parts by weight Fe 2o 370.6 part, MnO21.4 part, ZnO8.0 part, V 2o 50.05 part, H 2siO 30.002 part, CaCO 30.04 part, Nb 2o 50.03 part.
The preparation method of above-mentioned low resistance Ferrite Material, concrete preparation process is as follows:
(1) take Fe by above-mentioned parts by weight 2o 370.1-71.1 part, MnO20.9-21.9 part, ZnO7.5-8.5 part, V 2o 50.02-0.06 part, H 2siO 30.001-0.004 part, CaCO 30.02-0.06 part, Nb 2o 50.02-0.06 part, polyvinyl alcohol 0.5-1 part, dispersion agent (claiming again defloculating agent) 0.02-0.06 part, defoamer 0.01-0.03 part;
(2) by the Fe taking in step (1) 2o 3, MnO, ZnO carry out after batch mixing, in 970-1070 DEG C of preburning powdered material, adds V in sand grinding process 2o 5, H 2siO 3, CaCO 3and Nb 2o 5and polyvinyl alcohol, dispersion agent, defoamer, sand milling two hours;
(3) control inlet temperature 430-510 DEG C, temperature out 100-180 DEG C, is sprayed into finished product material through spray tower.
Preferably, the preparation method of above-mentioned low resistance Ferrite Material, in described step (2) in 1000 DEG C of preburning powdered materials.
Preferably, the preparation method of above-mentioned low resistance Ferrite Material, controls 460 DEG C of inlet temperatures, 150 DEG C of temperature outs in described step (3).
The invention has the beneficial effects as follows:
Above-mentioned low resistance Ferrite Material, by the specific consumption combination of each component, has improved magnetic core inductance value greatly, reduces power consumption, and resistance reduces, and can be used for the transmission of high ferro base station signal, in use can greatly improve the signal transmission performance of high ferro base station; Its preparation method is simple, is applicable to the needs that large-scale industrial is produced.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is further described.
Embodiment 1
A kind of low resistance Ferrite Material, by Fe 2o 3, MnO, ZnO, V 2o 5, H 2siO 3, CaCO 3and Nb 2o 5composition, wherein Fe 2o 370.6kg, MnO21.4kg, ZnO8.0kg, V 2o 50.05kg, H 2siO 30.002kg, CaCO 30.04kg, Nb 2o 50.03kg.
The preparation method of above-mentioned low resistance Ferrite Material, concrete preparation process is as follows:
(1) take Fe 2o 370.6kg, MnO21.4kg, ZnO8.0kg, V 2o 50.05kg, H 2siO 30.002kg, CaCO 30.04kg, Nb 2o 50.03kg, polyvinyl alcohol 0.7kg, dispersion agent (claiming again defloculating agent, Yuncheng Yu Chuan Chemical Co., Ltd.) 0.05kg, defoamer (rising sun peak, Pests in Tianjin Binhai New Area Fine Chemical Works) 0.02kg;
(2) by the Fe taking in step (1) 2o 3, MnO, ZnO carry out after batch mixing, in 1000 DEG C of preburning powdered materials, adds V in sand grinding process 2o 5, H 2siO 3, CaCO 3and Nb 2o 5and polyvinyl alcohol, dispersion agent, defoamer, sand milling two hours;
(3) control 460 DEG C of inlet temperatures, 150 DEG C of temperature outs, are sprayed into finished product material through spray tower.
Embodiment 2
A kind of low resistance Ferrite Material, by Fe 2o 3, MnO, ZnO, V 2o 5, H 2siO 3, CaCO 3and Nb 2o 5composition, wherein Fe 2o 371.1kg, MnO21.9kg, ZnO7.5kg, V 2o 50.06kg, H 2siO 30.001kg, CaCO 30.06kg, Nb 2o 50.02kg.
The preparation method of above-mentioned low resistance Ferrite Material, concrete preparation process is as follows:
(1) take Fe 2o 371.1kg, MnO21.9kg, ZnO7.5kg, V 2o 50.06kg, H 2siO 30.001kg, CaCO 30.06kg, Nb 2o 50.02kg, polyvinyl alcohol 1kg, dispersion agent (claiming again defloculating agent, Yuncheng Yu Chuan Chemical Co., Ltd.) 0.02kg, defoamer (rising sun peak, Pests in Tianjin Binhai New Area Fine Chemical Works) 0.01kg;
(2) by the Fe taking in step (1) 2o 3, MnO, ZnO carry out after batch mixing, in 1070 DEG C of preburning powdered materials, adds V in sand grinding process 2o 5, H 2siO 3, CaCO 3and Nb 2o 5and polyvinyl alcohol, dispersion agent, defoamer, sand milling two hours;
(3) control 430 DEG C of inlet temperatures, 100 DEG C of temperature outs, are sprayed into finished product material through spray tower.
Embodiment 3
A kind of low resistance Ferrite Material, by Fe 2o 3, MnO, ZnO, V 2o 5, H 2siO 3, CaCO 3and Nb 2o 5composition, wherein Fe 2o 370.1kg, MnO20.9kg, ZnO8.5kg, V 2o 50.02kg, H 2siO 30.004kg, CaCO 30.02kg, Nb 2o 50.06kg.
The preparation method of above-mentioned low resistance Ferrite Material, concrete preparation process is as follows:
(1) take Fe 2o 370.1kg, MnO20.9kg, ZnO8.5kg, V 2o 50.02kg, H 2siO 30.004kg, CaCO 30.02kg, Nb 2o 50.06kg, polyvinyl alcohol 0.5kg, dispersion agent (claiming again defloculating agent, Yuncheng Yu Chuan Chemical Co., Ltd.) 0.06kg, defoamer (rising sun peak, Pests in Tianjin Binhai New Area Fine Chemical Works) 0.03kg;
(2) by the Fe taking in step (1) 2o 3, MnO, ZnO carry out after batch mixing, in 970 DEG C of preburning powdered materials, adds V in sand grinding process 2o 5, H 2siO 3, CaCO 3and Nb 2o 5and polyvinyl alcohol, dispersion agent, defoamer, sand milling two hours;
(3) control 510 DEG C of inlet temperatures, 180 DEG C of temperature outs, are sprayed into finished product material through spray tower.
Embodiment 4
A kind of low resistance Ferrite Material, by Fe 2o 3, MnO, ZnO, V 2o 5, H 2siO 3, CaCO 3and Nb 2o 5composition, wherein Fe 2o 370.7kg, MnO21.2kg, ZnO7.9kg, V 2o 50.04kg, H 2siO 30.002kg, CaCO 30.05kg, Nb 2o 50.03kg.
The preparation method of above-mentioned low resistance Ferrite Material, concrete preparation process is as follows:
(1) take Fe 2o 370.7kg, MnO21.2kg, ZnO7.9kg, V 2o 50.04kg, H 2siO 30.002kg, CaCO 30.05kg, Nb 2o 50.03kg, polyvinyl alcohol 0.8kg, dispersion agent (claiming again defloculating agent, Yuncheng Yu Chuan Chemical Co., Ltd.) 0.05kg, defoamer (rising sun peak, Pests in Tianjin Binhai New Area Fine Chemical Works) 0.02kg;
(2) by the Fe taking in step (1) 2o 3, MnO, ZnO carry out after batch mixing, in 1020 DEG C of preburning powdered materials, adds V in sand grinding process 2o 5, H 2siO 3, CaCO 3and Nb 2o 5and polyvinyl alcohol, dispersion agent, defoamer, sand milling two hours;
(3) control 480 DEG C of inlet temperatures, 160 DEG C of temperature outs, are sprayed into finished product material through spray tower.
The described component of one of embodiment 1-4 is commercially available prod; each amounts of components is increased or reduced according to same ratio, and the parts by weight relation of the each component of gained all belongs to protection scope of the present invention, wherein; dispersion agent and defoamer are this area generic noun, are specific product.
Performance test example:
Low resistance Ferrite Material described in tested object: embodiment 1.
(1) with LCR401 bridge test inductance coefficent AL, test condition 1KHz0.3v, recording inductance coefficent value is 5400nH/N 2
(2) by power consumption instrument electrically heated drying cabinet measurement of power consumption (Po) test condition:
16KHz200mT?N=15Ts?V=83.1v
25KHz200mT?N=15Ts?V=129.8v
Record power consumption number (100 DEG C time) for 16K Po:3.5W
25K?Po:7W
(3) with resistance (R) testing instrument VoLtech AT3600 type test alternating current resistance (R)
Test condition 2KHz1v
Recording resistance value is R:0.5 Ω
Above-mentioned detailed description of the preparation method of this kind of low resistance Ferrite Material being carried out with reference to embodiment; illustrative instead of determinate; can list several embodiment according to institute's limited range; therefore in the variation and the amendment that do not depart under general plotting of the present invention, within should belonging to protection scope of the present invention.

Claims (4)

1. a preparation method for low resistance Ferrite Material, is characterized in that: concrete preparation process is as follows:
(1) take by weight Fe 2o 370.1-71.1 part, MnO20.9-21.9 part, ZnO7.5-8.5 part, V 2o 50.02-0.06 part, H 2siO 30.001-0.004 part, CaCO 30.02-0.06 part, Nb 2o 50.02-0.06 part, polyvinyl alcohol 0.5-1 part, dispersion agent 0.02-0.06 part, defoamer 0.01-0.03 part;
(2) by the Fe taking in step (1) 2o 3, MnO, ZnO carry out after batch mixing, in 970-1070 DEG C of preburning powdered material, adds V in sand grinding process 2o 5, H 2siO 3, CaCO 3and Nb 2o 5and polyvinyl alcohol, dispersion agent, defoamer, sand milling two hours;
(3) control inlet temperature 430-510 DEG C, temperature out 100-180 DEG C, is sprayed into finished product material through spray tower.
2. the preparation method of low resistance Ferrite Material according to claim 1, is characterized in that: described step takes Fe in (1) by weight 2o 370.6 part, MnO21.4 part, ZnO8.0 part, V 2o 50.05 part, H 2siO 30.002 part, CaCO 30.04 part, Nb 2o 50.03 part.
3. the preparation method of low resistance Ferrite Material according to claim 1, is characterized in that: in described step (2) in 1000 DEG C of preburning powdered materials.
4. the preparation method of low resistance Ferrite Material according to claim 1, is characterized in that: in described step (3), control 460 DEG C of inlet temperatures, 150 DEG C of temperature outs.
CN201210587425.8A 2012-12-28 2012-12-28 Method for preparing low resistance ferrite material Pending CN103896596A (en)

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Application Number Priority Date Filing Date Title
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Publication Number Publication Date
CN103896596A true CN103896596A (en) 2014-07-02

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Application publication date: 20140702