CN104072118A - Manganese zinc ferrite material and preparation process thereof - Google Patents

Manganese zinc ferrite material and preparation process thereof Download PDF

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Publication number
CN104072118A
CN104072118A CN201410260554.5A CN201410260554A CN104072118A CN 104072118 A CN104072118 A CN 104072118A CN 201410260554 A CN201410260554 A CN 201410260554A CN 104072118 A CN104072118 A CN 104072118A
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zno
mno
500ppm
ferrite material
obtaining
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李前军
沈建元
徐升宝
王步猛
王久如
屠德义
王晓祥
蔡春桥
蒲成刚
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TIANCHANG ZHONGDE ELECTRONICS CO Ltd
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TIANCHANG ZHONGDE ELECTRONICS CO Ltd
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Abstract

The invention discloses a manganese zinc ferrite material and a preparation process thereof. The manganese zinc ferrite material contains the following raw materials: Fe2O3, ZnO, MnO, SiO2, CaCO3, Nb2O5, Co2O3, V2O5, TiO2, CuO, ZrO2 and Li2CO3, wherein a mole ratio of Fe2O3 to MnO to ZnO is at (53-56): (38-41): (5-8); on the basis of total mass of Fe2O3, ZnO and MnO, mass percentages of SiO2, CaCO3, Nb2O5, Co2O3, V2O5, TiO2, CuO, ZrO2 and Li2CO3 are respectively 20-70ppm, 100-800ppm, 0-500ppm, 0-2000ppm, 0-500ppm, 0-2400ppm, 0-500ppm, 100-500ppm and 0-500ppm; in preparation process, the manganese zinc ferrite material is prepared by weighing various raw materials according proportions, and implementing such matched processing steps as mixing, vibrating and grinding, reshaping, pre-burning, smashing, pulping, powdering, humidifying, molding, sintering and grinding.

Description

A kind of MnZn ferrite material and preparation technology thereof
Technical field
The invention belongs to core material technical field, relate in particular to a kind of MnZn ferrite material and preparation technology thereof.
Background technology
Soft magnetic ferrite is a kind of electronic industry base mateiral, has been widely used in the industry-by-industries such as automatic control, information storage, magnetic recording head, TV, communication.Mn-Zn ferrite, owing to having premium properties, especially both had ferromegnetism and the very high characteristic of resistivity, and it has a wide range of applications in high frequency radio field, for the manufacture of various inducers, electronic transformer, choke, suppressor and wave filter.In prior art, along with electronics is constantly accelerated to the speed of high frequency future development, also more and more higher to the high frequency magnetic core loss characteristic requirement of magneticsubstance, existing soft magnetic ferrite cannot meet service requirements, need to improve.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of MnZn ferrite material and preparation technology thereof, under high frequency state, its core loss is low.。
The present invention proposes to starve a kind of MnZn ferrite material, consists of: Fe following raw material 2o 3, ZnO, MnO, SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2, Li 2cO 3, Fe wherein 2o 3: the mol ratio of MnO:ZnO is (53～56): (38～41): (5～8), and with Fe 2o 3, ZnO, MnO three's quality and be benchmark, SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2, Li 2cO 3massfraction be respectively 20～70ppm, 100～800ppm, 0～500ppm, 0～2000ppm, 0～500ppm, 0～2400ppm, 0～500ppm, 100～500ppm, 0～500ppm.
Preferably, Fe 2o 3: the mol ratio of MnO:ZnO is 54:39:6.
Preferably, Fe 2o 3: the mol ratio of MnO:ZnO is 55:40:7.
Preferably, with Fe 2o 3, ZnO, MnO three's quality and be benchmark, SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2, Li 2cO 3massfraction be respectively 30～60ppm, 200～700ppm, 100～400ppm, 400～1600ppm, 100～400ppm, 400～2000ppm, 100～400ppm, 200～400ppm, 100～500ppm.
Preferably, with Fe 2o 3, ZnO, MnO three's quality and be benchmark, SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2, Li 2cO 3massfraction be respectively 40～50ppm, 300～600ppm, 200～300ppm, 800～1200ppm, 200～300ppm, 800～1600ppm, 200～300ppm, 250～350ppm, 200～300ppm.
The preparation technology who the invention allows for a kind of MnZn ferrite material, is prepared according to the following steps:
S1: take each raw material by proportioning;
S2: by the Fe taking in S1 2o 3, ZnO, MnO, CaCO 3, Li 2cO 3mix, obtain mixture;
S3: adopt vibrating ball mill to carry out vibration to the mixture obtaining in S2, obtain vibration material;
S4: by flaking machine, the vibration material obtaining in S3 is rolled to sheet and Shape correction, obtain shaping material;
S5: utilize retort furnace or rotary kiln to carry out preheating to the shaping material obtaining in S4, calcined temperature is 800～1050 ℃, and pre-burning amount is 300～800Kg/hr, obtains pre-burning material;
S6: the pre-burning material obtaining in S5 is carried out to coarse reduction, fine powder are broken, slurrying, obtain feed liquid to be painted, wherein, add the SiO taking in S1 in pulping process 2, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2;
S7: the feed liquid to be painted obtaining in S6 is made to Ferrite Material powder by spray-drier;
S8: the Ferrite Material powder obtaining in S7 is carried out to powder damping, moulding, sintering, grinding, clean, obtain Ferrite Material.
In the present invention, by adopting suitable Fe 2o 3, ZnO, MnO three's proportioning, make ZnO excessive on the one hand, thereby increase substantially initial permeability,, coordinate with Fe meanwhile 2o 3excessive, also contribute to promote initial permeability, on the other hand, regulated and controled Fe 2o 3with the proportionlity of ZnO, can be that material obtains applicable Curie temperature; By to adding SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2, Li 2cO 3carry out doping treatment to improve the performance of material, wherein, SiO 2can play hydrotropy effect, effectively lower the loss of material, CaCO 3can improve the high frequency performance of material and improve the magnetic permeability of material, Nb 2o 5contribute to reduce the high frequency power loss of material, Co 2o 3can reduce the polarizability of material internal, impel domain wall displacement, reduce the coercive force of material, V 2o 5can crystal grain thinning, reduce the void content of material, promote ferritic initial permeability; By preparation technology is optimized, adopt cooperatively interacting of mixing, vibration, shaping, pre-burning, pulverizing, slurrying, powder process, damping, moulding, sintering, grinding Alternative step, each composition effect can be given full play to, thereby obtain high performance MnZn ferrite material.
The properties of the MnZn ferrite material that test makes, performance data is as shown in table 1.
In above-mentioned table 1, data show, Ferrite Material disclosed in this invention has good high frequency magnetic core loss characteristic.
Embodiment
Below in conjunction with specific examples, the present invention is described in detail; should understand; embodiment is only for the present invention is described, rather than for the present invention is limited, and any modification of making on basis of the present invention, is equal to replacement etc. all in protection scope of the present invention.
Embodiment 1
A MnZn ferrite material, is comprised of following raw material: Fe 2o 3, ZnO, MnO, SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2, Li 2cO 3, Fe wherein 2o 3: the mol ratio of MnO:ZnO is 54:39:6, with Fe 2o 3, ZnO, MnO three's quality and be benchmark, SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2, Li 2cO 3massfraction be respectively 20ppm, 400ppm, 400ppm, 2000ppm, 100ppm, 800ppm, 400ppm, 500ppm, 100ppm;
According to above-mentioned raw materials proportioning, be prepared according to the following steps:
S1: take each raw material by proportioning;
S2: by the Fe taking in S1 2o 3, ZnO, MnO, CaCO 3, Li 2cO 3mix, obtain mixture;
S3: adopt vibrating ball mill to carry out vibration to the mixture obtaining in S2, obtain vibration material;
S4: by flaking machine, the vibration material obtaining in S3 is rolled to sheet and Shape correction, obtain shaping material;
S5: utilize retort furnace or rotary kiln to carry out preheating to the shaping material obtaining in S4, calcined temperature is 900 ℃, and pre-burning amount is 500Kg/hr, obtains pre-burning material;
S6: the pre-burning material obtaining in S5 is carried out to coarse reduction, fine powder are broken, slurrying, obtain feed liquid to be painted, wherein, add the SiO taking in S1 in pulping process 2, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2;
S7: the feed liquid to be painted obtaining in S6 is made to Ferrite Material powder by spray-drier;
S8: the Ferrite Material powder obtaining in S7 is carried out to powder damping, moulding, sintering, grinding, clean, obtain Ferrite Material.
Embodiment 2
A MnZn ferrite material, is comprised of following raw material: Fe 2o 3, ZnO, MnO, SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2, Li 2cO 3, Fe wherein 2o 3: the mol ratio of MnO:ZnO is 55:40:7, with Fe 2o 3, ZnO, MnO three's quality and be benchmark, SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2, Li 2cO 3massfraction be respectively 40ppm, 600ppm, 500ppm, 200ppm, 200ppm, 1600ppm, 500ppm, 100ppm, 200ppm;
According to above-mentioned raw materials proportioning, be prepared according to the following steps:
S1: take each raw material by proportioning;
S2: by the Fe taking in S1 2o 3, ZnO, MnO, CaCO 3, Li 2cO 3mix, obtain mixture;
S3: adopt vibrating ball mill to carry out vibration to the mixture obtaining in S2, obtain vibration material;
S4: by flaking machine, the vibration material obtaining in S3 is rolled to sheet and Shape correction, obtain shaping material;
S5: utilize retort furnace or rotary kiln to carry out preheating to the shaping material obtaining in S4, calcined temperature is 900 ℃, and pre-burning amount is 600Kg/hr, obtains pre-burning material;
S6: the pre-burning material obtaining in S5 is carried out to coarse reduction, fine powder are broken, slurrying, obtain feed liquid to be painted, wherein, add the SiO taking in S1 in pulping process 2, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2;
S7: the feed liquid to be painted obtaining in S6 is made to Ferrite Material powder by spray-drier;
S8: the Ferrite Material powder obtaining in S7 is carried out to powder damping, moulding, sintering, grinding, clean, obtain Ferrite Material.
Embodiment 3
A MnZn ferrite material, is comprised of following raw material: Fe 2o 3, ZnO, MnO, SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2, Li 2cO 3, Fe wherein 2o 3: the mol ratio of MnO:ZnO is 56:41:8, with Fe 2o 3, ZnO, MnO three's quality and be benchmark, SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO, Li 2cO 3massfraction be respectively 55ppm, 800ppm, 100ppm, 800ppm, 400ppm, 2400ppm, 100ppm, 300ppm, 350ppm;
According to above-mentioned raw materials proportioning, be prepared according to the following steps:
S1: take each raw material by proportioning;
S2: by the Fe taking in S1 2o 3, ZnO, MnO, CaCO 3, Li 2cO 3mix, obtain mixture;
S3: adopt vibrating ball mill to carry out vibration to the mixture obtaining in S2, obtain vibration material;
S4: by flaking machine, the vibration material obtaining in S3 is rolled to sheet and Shape correction, obtain shaping material;
S5: utilize retort furnace or rotary kiln to carry out preheating to the shaping material obtaining in S4, calcined temperature is 800 ℃, and pre-burning amount is 300Kg/hr, obtains pre-burning material;
S6: the pre-burning material obtaining in S5 is carried out to coarse reduction, fine powder are broken, slurrying, obtain feed liquid to be painted, wherein, add the SiO taking in S1 in pulping process 2, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2;
S7: the feed liquid to be painted obtaining in S6 is made to Ferrite Material powder by spray-drier;
S8: the Ferrite Material powder obtaining in S7 is carried out to powder damping, moulding, sintering, grinding, clean, obtain Ferrite Material.
Embodiment 4
A MnZn ferrite material, its raw material comprises:
Fe 2o 3, ZnO, MnO, SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2, Li 2cO 3, Fe wherein 2o 3: the mol ratio of MnO:ZnO is 53:38:5, with Fe 2o 3, ZnO, MnO three's quality and be benchmark, SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2, Li 2cO 3massfraction be respectively 70ppm, 100ppm, 300ppm, 1600ppm, 500ppm, 200ppm, 300ppm, 500ppm, 500ppm;
According to above-mentioned raw materials proportioning, be prepared according to the following steps:
S1: take each raw material by proportioning;
S2: by the Fe taking in S1 2o 3, ZnO, MnO, CaCO 3, Li 2cO 3mix, obtain mixture;
S3: adopt vibrating ball mill to carry out vibration to the mixture obtaining in S2, obtain vibration material;
S4: by flaking machine, the vibration material obtaining in S3 is rolled to sheet and Shape correction, obtain shaping material;
S5: utilize retort furnace or rotary kiln to carry out preheating to the shaping material obtaining in S4, calcined temperature is 1050 ℃, and pre-burning amount is 800Kg/hr, obtains pre-burning material;
S6: the pre-burning material obtaining in S5 is carried out to coarse reduction, fine powder are broken, slurrying, obtain feed liquid to be painted, wherein, add the SiO taking in S1 in pulping process 2, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2;
S7: the feed liquid to be painted obtaining in S6 is made to Ferrite Material powder by spray-drier;
S8: the Ferrite Material powder obtaining in S7 is carried out to powder damping, moulding, sintering, grinding, clean, obtain Ferrite Material.

Claims (6)

1. a MnZn ferrite material, is characterized in that, consists of: Fe following raw material 2o 3, ZnO, MnO, SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2, Li 2cO 3, Fe wherein 2o 3: the mol ratio of MnO:ZnO is (53～56): (38～41): (5～8), and with Fe 2o 3, ZnO, MnO three's quality and be benchmark, SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2, Li 2cO 3massfraction be respectively 20～70ppm, 100～800ppm, 0～500ppm, 0～2000ppm, 0～500ppm, 0～2400ppm, 0～500ppm, 100～500ppm, 0～500ppm.
2. MnZn ferrite material according to claim 1, is characterized in that, Fe 2o 3: the mol ratio of MnO:ZnO is 54:39:6.
3. MnZn ferrite material according to claim 1, is characterized in that, Fe 2o 3: the mol ratio of MnO:ZnO is 55:40:7.
4. according to the MnZn ferrite material described in claim 2 or 3, it is characterized in that, with Fe 2o 3, ZnO, MnO three's quality and be benchmark, SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2, Li 2cO 3massfraction be respectively 30～60ppm, 200～700ppm, 100～400ppm, 400～1600ppm, 100～400ppm, 400～2000ppm, 100～400ppm, 200～400ppm, 100～500ppm.
5. MnZn ferrite material according to claim 4, is characterized in that, with Fe 2o 3, ZnO, MnO three's quality and be benchmark, SiO 2, CaCO 3, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2, Li 2cO 3massfraction be respectively 40～50ppm, 300～600ppm, 200～300ppm, 800～1200ppm, 200～300ppm, 800～1600ppm, 200～300ppm, 250～350ppm, 200～300ppm.
6. a preparation technology for MnZn ferrite material, is characterized in that, is prepared according to the following steps:
S1: take each raw material according to the proportioning raw materials described in any one in claim 1-5;
S2: by the Fe taking in S1 2o 3, ZnO, MnO, CaCO 3, Li 2cO 3mix, obtain mixture;
S3: adopt vibrating ball mill to carry out vibration to the mixture obtaining in S2, obtain vibration material;
S4: by flaking machine, the vibration material obtaining in S3 is rolled to sheet and Shape correction, obtain shaping material;
S5: utilize retort furnace or rotary kiln to carry out preheating to the shaping material obtaining in S4, calcined temperature is 800～1050 ℃, and pre-burning amount is 300～800Kg/hr, obtains pre-burning material;
S6: the pre-burning material obtaining in S5 is carried out to coarse reduction, fine powder are broken, slurrying, obtain feed liquid to be painted, wherein, add the SiO taking in S1 in pulping process 2, Nb 2o 5, Co 2o 3, V 2o 5, TiO 2, CuO, ZrO 2;
S7: the feed liquid to be painted obtaining in S6 is made to Ferrite Material powder by spray-drier;
S8: the Ferrite Material powder obtaining in S7 is carried out to powder damping, moulding, sintering, grinding, clean, obtain Ferrite Material.
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104556994A (en) * 2014-12-19 2015-04-29 江门安磁电子有限公司 Ni-free manganese zinc ferrite material applied to (-20)-140 DEG C and manufacturing method thereof
CN104591712A (en) * 2014-12-19 2015-05-06 江门安磁电子有限公司 Low-loss manganese zinc ferrite material for temperature of 20 DEG C below zero to 140 DEG C and manufacturing method thereof
CN105084881A (en) * 2015-07-24 2015-11-25 天长市中德电子有限公司 Soft-magnetic ferrite with high saturation magnetic induction and preparation method thereof
CN105669175A (en) * 2015-06-16 2016-06-15 泰州茂翔电子器材有限公司 High-frequency low-loss soft magnetic ferrite material
CN106810233A (en) * 2017-01-19 2017-06-09 东莞易力禾电子有限公司 High frequency low-loss manganese zine ferrite and its manufacture method
CN107680771A (en) * 2016-09-09 2018-02-09 杨甫进 Clamping method of the soft magnetism green compact on digital-controlled carving machine
CN107680770A (en) * 2016-09-09 2018-02-09 杨甫进 Soft magnetic ferrite green compact Carving Machining technique
WO2024032684A1 (en) * 2022-08-12 2024-02-15 横店集团东磁股份有限公司 Low-stress-sensitivity high-frequency manganese-zinc ferrite material, and preparation method therefor

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CN103117146A (en) * 2013-02-26 2013-05-22 苏州冠达磁业有限公司 High-Curie-temperature low-loss high-strength ferrite magnetic block and preparation method thereof

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104556994A (en) * 2014-12-19 2015-04-29 江门安磁电子有限公司 Ni-free manganese zinc ferrite material applied to (-20)-140 DEG C and manufacturing method thereof
CN104591712A (en) * 2014-12-19 2015-05-06 江门安磁电子有限公司 Low-loss manganese zinc ferrite material for temperature of 20 DEG C below zero to 140 DEG C and manufacturing method thereof
CN104556994B (en) * 2014-12-19 2017-03-29 江门安磁电子有限公司 The MnZn ferrite material without Ni and its manufacture method for 20～140 DEG C
CN105669175A (en) * 2015-06-16 2016-06-15 泰州茂翔电子器材有限公司 High-frequency low-loss soft magnetic ferrite material
CN105084881A (en) * 2015-07-24 2015-11-25 天长市中德电子有限公司 Soft-magnetic ferrite with high saturation magnetic induction and preparation method thereof
CN107680771A (en) * 2016-09-09 2018-02-09 杨甫进 Clamping method of the soft magnetism green compact on digital-controlled carving machine
CN107680770A (en) * 2016-09-09 2018-02-09 杨甫进 Soft magnetic ferrite green compact Carving Machining technique
CN107680771B (en) * 2016-09-09 2019-11-29 诸暨市烈火工业设计工作室 Clamping method of the soft magnetism green compact on digital-controlled carving machine
CN106810233A (en) * 2017-01-19 2017-06-09 东莞易力禾电子有限公司 High frequency low-loss manganese zine ferrite and its manufacture method
WO2024032684A1 (en) * 2022-08-12 2024-02-15 横店集团东磁股份有限公司 Low-stress-sensitivity high-frequency manganese-zinc ferrite material, and preparation method therefor

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