CN108727010A - A kind of MnZnNiCo Ferrite Materials and preparation method thereof - Google Patents

A kind of MnZnNiCo Ferrite Materials and preparation method thereof Download PDF

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CN108727010A
CN108727010A CN201810639969.1A CN201810639969A CN108727010A CN 108727010 A CN108727010 A CN 108727010A CN 201810639969 A CN201810639969 A CN 201810639969A CN 108727010 A CN108727010 A CN 108727010A
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principal component
mnznnico
auxiliary element
hours
ferrite materials
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颜冲
高庞
张建明
王育伟
张维
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Suzhou Tianyuan Magnetic Materials Co Ltd
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Suzhou Tianyuan Magnetic Materials Co Ltd
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Abstract

The invention discloses a kind of MnZnNiCo Ferrite Materials and preparation method thereof, which is made of principal component and auxiliary element, and the principal component and content are calculated as with oxide：Fe2O353.5~54.5mol%, 5.5~8.5mol% of ZnO, 0.5~2.5mol% of NiO, CoO 0.1~0.4mol% and MnO surpluses.Auxiliary element by principal component total weight is：SiO250~150*10‑ 6wt%、CaCO3100~1200*10‑6wt%、Ta2O550~500*10‑6wt%、In2O3100~800*10‑6wt%.And in material impurity S elements content with SO3Meter control is in 100*10‑6Wt% or less.

Description

A kind of MnZnNiCo Ferrite Materials and preparation method thereof
Technical field
The invention belongs to soft magnetic ferrite field more particularly to a kind of MnZnNiCo Ferrite Materials and its preparation sides Method.
Background technology
With the increasingly in short supply of world petroleum resource and to the environmental requirement that motor vehicle emission is increasingly stringenter, electric vehicle （Electric Vehicle, EV）, fuel cell electric vehicle（Fuel Cell Electric Vehicle, FCEV）With it is mixed Close power vehicle（Hybrid Electric Vehicle, HEV）Have become major auto vendor of the world to pay high attention to and step up The emphasis of exploitation.Electric vehicle and hybrid vehicle are undoubtedly by as the mainstream of future automobile, and the automobile of these types is wanted The power-supply system and electronic system of more high technology contents are used, these systems will undoubtedly use magnetic element.Soft magnet oxygen Body is excellent, of low cost as a kind of high frequency electrical properties, electronic functional material that is being easily processed into different shape sized products, It is the core of vehicle-mounted magnetic element, more and more extensive application will be obtained in new-energy automobile field.In order to ensure severe It is run reliably and with long-term under environment, and keeps high energy conversion efficiency and smaller component size or weight, these magnetic elements Used magnetic core will require realize low-loss in wide temperature range, and it is desirable that its high temperature saturation flux density is high.It removes Select suitable principal component design outer, suitable micro additive is also highly important.
Chinese patent application（CN200710019717.0）,（CN201110095323.X）,（CN201210041753.8）, （CN201110260074.5）,（CN201210222035.0）,（CN201710895550.8）Deng by select principal component composition, Additive designs and combines to realize the low-loss of the wide temperature section of MnZn ferrites, but these are applied not to NiO and CoO as iron Oxysome principal component is studied, and does not also refer to In2O3Additive.And the inventors discovered that, use Fe2O3, MnO, NiO, CoO and ZnO is limited and is carried out In as principal component and to their proportionate relationship2O3The addition of additive is not only able to realize The wide-temperature and low-consumption of material, and the high temperature saturation flux density of material can be improved.
Invention content
The present invention is directed to the above problem that the prior art occurs during preparing MnZn Ferrite Materials, provides one kind and exists The MnZnNiCo Ferrite Materials and preparation method thereof that 0 DEG C ~ 140 DEG C temperature range internal loss is low, saturation flux density is high pass through The MnZnNiCo ferrites that this method obtains, loss obtains improvement by a relatively large margin in wide temperature range, and high temperature is saturated magnetic Flux density is high.
To achieve the goals above, the technical scheme is to design a kind of MnZnNiCo Ferrite Materials, by it is main at Divide and auxiliary element forms, principal component and content are calculated as Fe with oxide2O353.5~54.5mol%, ZnO 5.5~ 0.5~2.5mol% of 8.5mol%, NiO, CoO 0.1~0.4mol% and MnO surpluses；The auxiliary element and content with it is main at It is to calculate basis to divide total weight, is by weight percentage SiO2 50~150*10-6wt%、CaCO3 100~1200*10-6wt%、 Ta2O5 50~500*10-6wt%、In2O3 100~800*10-6wt%。
Further, in the principal component and auxiliary element micro impurity element S with SO3Meter is less than 100*10-6wt%。
A kind of preparation method of MnZnNiCo Ferrite Materials, includes the following steps：
Step 1: by Fe2O3, MnO, ZnO, NiO, CoO composition principal component mixed in sand mill 1 hour, then at 850 DEG C Lower pre-burning 2 hours；
Step 2: on the basis of the powder quality after pre-burning, auxiliary element, the auxiliary element of addition are added in above-mentioned Preburning material It is：SiO2、CaCO3、Ta2O5、In2O3；
Step 3: above-mentioned powder is carried out secondary sand milling 2 hours, mist projection granulating is carried out after PVA is added, is shaped to the standard of Φ 30 Toroidal core sample is sintered；Sintering keeps keeping the temperature 5 hours at 1310 DEG C of temperature in highest, is then maintaining equilibrium oxygen partial pres-sure Under be cooled to room temperature.
The advantages of the present invention are：The present invention have do not change traditional processing technology, raw material are easy to get Advantage.By the way that NiO and CoO as principal component and is limited its ratio and In2O3The addition of additive, and limit micro- in material The content for measuring impurity element S is realized in wider temperature range low-loss, and high temperature saturation flux density is high.
Specific implementation mode
With reference to embodiment, the specific embodiment of the present invention is further described.Following embodiment is only used for more Add and clearly demonstrate technical scheme of the present invention, and not intended to limit the protection scope of the present invention.
Embodiment 1：
It will be by the Fe of 54.0mol%2O3, 35.7mol% MnO, 8.0mol% ZnO, 2.0mol% NiO, 0.3mol% CoO The principal component of composition mixes 1 hour in sand mill, then pre-burning 2 hours at 850 DEG C.Using the powder quality after pre-burning as base Standard, is added auxiliary element in above-mentioned Preburning material, and the auxiliary element of addition is：100*10-6The SiO of wt%2、800*10-6Wt%'s CaCO3、300*10-6The Ta of wt%2O5、500*10-6The In of wt%2O3.By making S elements with SO the control of raw material impurity3Meter Content is controlled in 100*10-6Wt% or less.Then it carries out secondary sand milling 2 hours, carries out mist projection granulating after PVA is added, be shaped to Φ 30 standard toroidal magnetic core sample is sintered.Sintering keeps keeping the temperature 5 hours at 1310 DEG C of temperature in highest, is then remaining flat It is cooled to room temperature under weighing apparatus partial pressure of oxygen.
With CH2335 type loss test instrument in the loss Pcv of 100kHz/200mT test samples, divided with SY-8219 types B-H The saturation flux density Bs of analyzer test sample at 50Hz, 1200A/m, 100 DEG C, core characteristics testing result are shown in Table 1.
Comparative example 1
Same as Example 1, only principal component is changed to the Fe of 55.2mol%2O3, the ZnO of the MnO of 36.5mol%, 8.0mol%, The CoO of 0.3mol% cancels NiO as principal component.Core characteristics testing result is shown in Table 1.
Table 1
Embodiment 2：
It will be by the Fe of 53.5mol%2O3, 36.7mol% MnO, 8.0mol% ZnO, 1.5mol% NiO, 0.3mol% CoO The principal component of composition mixes 1 hour in sand mill, then pre-burning 2 hours at 850 DEG C.Using the powder quality after pre-burning as base Standard, is added auxiliary element in above-mentioned Preburning material, and the auxiliary element of addition is：100*10-6The SiO of wt%2、800*10-6Wt%'s CaCO3、300*10-6The Ta of wt%2O5、500*10-6The In of wt%2O3.By making S elements with SO the control of raw material impurity3Meter Content is controlled in 100*10-6Wt% or less.Then it carries out secondary sand milling 2 hours, carries out mist projection granulating after PVA is added, be shaped to Φ 30 standard toroidal magnetic core sample is sintered.Sintering keeps keeping the temperature 5 hours at 1310 DEG C of temperature in highest, is then remaining flat It is cooled to room temperature under weighing apparatus partial pressure of oxygen.
With CH2335 type loss test instrument in the loss Pcv of 100kHz/200mT test samples, divided with SY-8219 types B-H The saturation flux density Bs of analyzer test sample at 50Hz, 1200A/m, 100 DEG C, core characteristics testing result are shown in Table 2.
Comparative example 2
It is same as Example 2, only principal component is changed to the Fe of 53.8mol%2O3, the ZnO of the MnO of 36.7mol%, 8.0mol%, The NiO of 1.5mol% cancels CoO as principal component.Core characteristics testing result is shown in Table 2.
Table 2
Embodiment 3：
It will be by the Fe of 54.3mol%2O3, 37.3mol% MnO, 6.0mol% ZnO, 2.0mol% NiO, 0.4mol% CoO The principal component of composition mixes 1 hour in sand mill, then pre-burning 2 hours at 850 DEG C.Using the powder quality after pre-burning as base Standard, is added auxiliary element in above-mentioned Preburning material, and the auxiliary element of addition is：100*10-6The SiO of wt%2、800*10-6Wt%'s CaCO3、300*10-6The Ta of wt%2O5、500*10-6The In of wt%2O3.By making S elements with SO the control of raw material impurity3Meter Content is controlled in 100*10-6Wt% or less.Then it carries out secondary sand milling 2 hours, carries out mist projection granulating after PVA is added, be shaped to Φ 30 standard toroidal magnetic core sample is sintered.Sintering keeps keeping the temperature 5 hours at 1310 DEG C of temperature in highest, is then remaining flat It is cooled to room temperature under weighing apparatus partial pressure of oxygen.
With CH2335 type loss test instrument in the loss Pcv of 100kHz/200mT test samples, divided with SY-8219 types B-H The saturation flux density Bs of analyzer test sample at 50Hz, 1200A/m, 100 DEG C, core characteristics testing result are shown in Table 3.
Comparative example 3
It is same as Example 3, only cancel In2O3Addition.Core characteristics testing result is shown in Table 3.
Comparative example 4
It is same as Example 3, make impurity element S with SO simply by the compound containing S elements is added3It is calculated as 300*10- 6wt%.Core characteristics testing result is shown in Table 3.
Table 3
The above is only a preferred embodiment of the present invention, it is noted that those skilled in the art are come It says, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (3)

1. a kind of MnZnNiCo Ferrite Materials, are made of principal component and auxiliary element, which is characterized in that principal component and content with Oxide is calculated as Fe2O353.5~54.5mol%, 5.5~8.5mol% of ZnO, 0.5~2.5mol% of NiO, CoO 0.1~ 0.4mol% and MnO surpluses；The auxiliary element and content are to calculate basis with principal component total weight, by weight percentage for SiO2 50~150*10-6wt%、CaCO3 100~1200*10-6wt%、Ta2O5 50~500*10-6wt%、In2O3 100~800* 10-6wt%。
2. a kind of MnZnNiCo Ferrite Materials as described in claim 1, which is characterized in that the principal component and auxiliary at Micro impurity element S is with SO in point3Meter is less than 100*10-6wt%。
3. a kind of preparation method of MnZnNiCo Ferrite Materials as claimed in claim 1 or 2, includes the following steps：
Step 1: by Fe2O3, MnO, ZnO, NiO, CoO composition principal component mixed in sand mill 1 hour, then at 850 DEG C Lower pre-burning 2 hours；
Step 2: on the basis of the powder quality after pre-burning, auxiliary element, the auxiliary element of addition are added in above-mentioned Preburning material It is：SiO2、CaCO3、Ta2O5、In2O3；
Step 3: above-mentioned powder is carried out secondary sand milling 2 hours, mist projection granulating is carried out after PVA is added, is shaped to the standard of Φ 30 Toroidal core sample is sintered；Sintering keeps keeping the temperature 5 hours at 1310 DEG C of temperature in highest, is then maintaining equilibrium oxygen partial pres-sure Under be cooled to room temperature.
CN201810639969.1A 2018-06-21 2018-06-21 A kind of MnZnNiCo Ferrite Materials and preparation method thereof Pending CN108727010A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1101736A1 (en) * 1999-11-19 2001-05-23 Minebea Co., Ltd. Mn-Zn ferrite and production thereof
CN102300830A (en) * 2009-01-29 2011-12-28 杰富意化学株式会社 MnZn ferrite core and manufacturing method therefor
CN102325737A (en) * 2009-02-20 2012-01-18 杰富意化学株式会社 The MnZnCo based ferrite
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
CN104934181A (en) * 2015-04-22 2015-09-23 横店集团东磁股份有限公司 Soft-magnetic MnZn system power ferrite

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1101736A1 (en) * 1999-11-19 2001-05-23 Minebea Co., Ltd. Mn-Zn ferrite and production thereof
CN102300830A (en) * 2009-01-29 2011-12-28 杰富意化学株式会社 MnZn ferrite core and manufacturing method therefor
CN102325737A (en) * 2009-02-20 2012-01-18 杰富意化学株式会社 The MnZnCo based ferrite
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
CN104934181A (en) * 2015-04-22 2015-09-23 横店集团东磁股份有限公司 Soft-magnetic MnZn system power ferrite

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