CN109534808A - A kind of low-temperature-rise magnetic core and preparation method thereof - Google Patents

A kind of low-temperature-rise magnetic core and preparation method thereof Download PDF

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CN109534808A
CN109534808A CN201811487066.2A CN201811487066A CN109534808A CN 109534808 A CN109534808 A CN 109534808A CN 201811487066 A CN201811487066 A CN 201811487066A CN 109534808 A CN109534808 A CN 109534808A
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parts
magnetic core
temperature
oxide
low
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张辛萌
周景
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Anhui Jingmei Electronics Co Ltd
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Anhui Jingmei Electronics Co Ltd
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Abstract

The present invention provides a kind of low-temperature-rise magnetic core and preparation method thereof, is related to core production technical field.The magnetic core is made of raw material from the following weight: 52-56 parts of iron oxide, 20-24 parts of copper oxide, 14-18 parts of manganese oxide, 8-12 parts of nickel oxide, 16-20 parts of cobalt sesquioxide, 12-16 parts of yttrium oxide, 8-12 parts of ethyl acetate, 4-8 parts of boron nitride, 16-20 parts of niobium pentaoxide, 12-16 parts of molybdenum dioxide, 8-12 parts of petroleum ether, 4-8 parts of silicon nitride, 2-4 parts of crosslinking agent, 1-3 parts of toughener, 1-2 parts of defoaming agent.The present invention overcomes the deficiencies in the prior art, make magnetic core obtained that there is the characteristic of low-temperature-rise, even if magnetic core also can guarantee high-power, and temperature rises slow in the state of the superposition of different electric currents, it is lost low, the characteristics such as Curie temperature and the impedance of magnetic core are effectively increased simultaneously, substantially prolong the service life of magnetic core, internal stress is small, magnetic core superior performance is suitable for promoting.

Description

A kind of low-temperature-rise magnetic core and preparation method thereof
Technical field
The present invention relates to core production technical fields, and in particular to a kind of low-temperature-rise magnetic core and preparation method thereof.
Background technique
Magnetic core refers to a kind of sintering magnetic metal oxide being made of various iron oxide mixtures.For example, manganese-zinc-iron oxygen Body and nickel-zinc ferrite are typical magnetic core array materials.Magnetic core is in the coil and transformer of various electronic equipments.With number The fast development of the word communication technology and Fibre Optical Communication Technology, traditional artificial traffic equipment are continuously updated superseded.In electronics electricity Road wide-band transformer, the pulse transformer and photovoltaic in the fields such as ISDN(Integrated Service Digital Network), local area network, wide area network, background illumination are inverse The high permeability magnetic core for becoming common mode filtering inductance in device, since transformer etc. is towards miniaturization, to the spy of magnetic core Property proposes requirements at the higher level.
The formula composition and production technology of current magnetic core are unreasonable, cause the performance of magnetic core poor.Especially in difference In the state of electric current superposition, current magnetic core is powerful in guarantee comparatively fast to cause its loss excessively high simultaneously as temperature rises, To influence its normal use, service life is short, brings biggish trouble to staff.
Summary of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of low-temperature-rise magnetic core and preparation method thereof, the present invention overcomes existing There is the deficiency of technology, make magnetic core obtained that there is the characteristic of low-temperature-rise, even if magnetic core also can in the state of the superposition of different electric currents Guarantee high-power, temperature rises slow, and low, while characteristics such as Curie temperature and impedance for effectively increasing magnetic core are lost, prolong significantly The service life of magnetic core is grown, internal stress is small, magnetic core superior performance, is suitable for promoting.
In order to achieve the above object, technical solution of the present invention is achieved by the following technical programs:
A kind of low-temperature-rise magnetic core, the magnetic core are made of raw material from the following weight: 52-56 parts of iron oxide, copper oxide 20- 24 parts, 14-18 parts of manganese oxide, 8-12 parts of nickel oxide, 16-20 parts of cobalt sesquioxide, 12-16 parts of yttrium oxide, ethyl acetate 8-12 Part, is handed over 4-8 parts of boron nitride, 16-20 parts of niobium pentaoxide, 12-16 parts of molybdenum dioxide, 8-12 parts of petroleum ether, 4-8 parts of silicon nitride Join agent 2-4 parts, 1-3 parts of toughener, 1-2 parts of defoaming agent.
Preferably, the magnetic core is made of raw material from the following weight: 54 parts of iron oxide, 22 parts of copper oxide, manganese oxide 16 Part, 10 parts of nickel oxide, 18 parts of cobalt sesquioxide, 14 parts of yttrium oxide, 10 parts of ethyl acetate, 6 parts of boron nitride, niobium pentaoxide 18 Part, 14 parts of molybdenum dioxide, 10 parts of petroleum ether, 6 parts of silicon nitride, 3 parts of crosslinking agent, 2 parts of toughener, 1.5 parts of defoaming agent.
Preferably, the crosslinking agent is one of calcium chloride dihydrate, epoxychloropropane and Dihydroxyaluminium Aminoacetate or a variety of.
Preferably, the toughener is one of polyamide, polycarbonate and polyvinyl butyral or a variety of.
Preferably, the defoaming agent is in silicone emulsion, polyoxyethylene polyoxy propyl alcohol amidogen ether and polypropylene glycerol aether It is one or more.
A kind of preparation method of low-temperature-rise magnetic core, the preparation method of the magnetic core the following steps are included:
(1) will iron oxide, copper oxide, manganese oxide and nickel oxide mix after pour into crusher that carry out mixing broken, after will Its mixture pours into sand mill, and crosslinking agent and toughener is added, and the deionized water for adding 1-2 times of volume carries out mixing and grinds Mill, it is spare to obtain magnetic core base-material；
(2) will cobalt sesquioxide, yttrium oxide and boron nitride mix after pour into crusher that carry out mixing broken, after mixed It closes object to pour into sand mill, ethyl acetate, crosslinking agent and toughener, the deionized water for adding 1-2 times of volume is added and is mixed Grinding is closed, it is spare to obtain the first magnetic core auxiliary material；
(3) will niobium pentaoxide, molybdenum dioxide and silicon nitride mix after pour into crusher that carry out mixing broken, after by its Mixture pours into sand mill, and petroleum ether, crosslinking agent and toughener, the deionized water for adding 1-2 times of volume is added and is mixed Grinding is closed, it is spare to obtain the second magnetic core auxiliary material；
(4) magnetic core base-material, the first magnetic core auxiliary material and the second magnetic core auxiliary material in above-mentioned steps (1), (2) and (3) are mixed After pour into sand mill, add defoaming agent and carry out mixed grinding, after be mixed object and pour into high speed disperser, disperse one section It it is mixed object after time pours into drying machine and be dried, obtain magnetic core raw material for standby after dry；
(5) the magnetic core raw material in above-mentioned steps (4) is obtained into magnetic core blank by compression moulding, then magnetic core blank is put into In annealing furnace, be warming up to 1250-1300 DEG C, insulation annealing 2-4h, after be cooled to 400-500 DEG C, keep the temperature natural cooling after 1-2h Product is obtained to room temperature.
Preferably, magnetic core base-material, the first magnetic core auxiliary material and the second magnetic core auxiliary material in step (1), (2) and (3) are broken Be 1-3cm to granularity, after to be ground to granularity be 1-3mm, and the additive amount of crosslinking agent and toughener is to measure in formula every time 1/3。
Preferably, the granularity of the magnetic core raw material in step (4) is 0.01-0.03mm, with the speed of 1000-1200r/min Disperse 20-30min, and drying temperature is 200-240 DEG C, drying to humidity is 3-7%.
The present invention provides a kind of low-temperature-rise magnetic core and preparation method thereof, and advantage is compared with prior art:
(1) present invention uses cobalt sesquioxide, yttrium oxide, ethyl acetate, boron nitride, niobium pentaoxide, molybdenum dioxide, stone Two kinds of auxiliary materials are made in the raw materials such as oily ether and silicon nitride, and it is mixed with magnetic core base-material, and magnetic core obtained is made to have low temperature The characteristic risen, substantially prolongs the service life of magnetic core, even if magnetic core also can guarantee big function in the state of the superposition of different electric currents Rate, temperature rise slowly, and loss is low, while the characteristics such as Curie temperature and impedance for effectively increasing magnetic core, magnetic core superior performance, fits Preferably promote；
(2) present invention is made magnetic core base-material and two kinds of auxiliary materials each by way of broken, multistage grinding and high speed dispersion Component is uniformly mixed and fineness is uniform, while the cooperation of crosslinking agent, toughener and defoaming agent, and each component is made to interconnect, and is eliminated Bubble and its toughness is improved, finally by high annealing, cool down annealing, rear cooled to room temperature again, so that magnetic core is had Effect sintering, so that its internal stress be effectively reduced, magnetic core function admirable is easy to use.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below with reference to the embodiment of the present invention pair Technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of the invention Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound Every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
Embodiment 1:
A kind of low-temperature-rise magnetic core, the magnetic core are made of raw material from the following weight: 52 parts of iron oxide, 20 parts of copper oxide, 14 parts of manganese oxide, 8 parts of nickel oxide, 16 parts of cobalt sesquioxide, 12 parts of yttrium oxide, 8 parts of ethyl acetate, 4 parts of boron nitride, five oxidations two 16 parts of niobium, 12 parts of molybdenum dioxide, 8 parts of petroleum ether, 4 parts of silicon nitride, 2 parts of crosslinking agent, 1 part of toughener, 1 part of defoaming agent.
Wherein, the crosslinking agent is one of calcium chloride dihydrate, epoxychloropropane and Dihydroxyaluminium Aminoacetate or a variety of；The toughening Agent is one of polyamide, polycarbonate and polyvinyl butyral or a variety of；The defoaming agent is silicone emulsion, gathers One of ethylene oxide polyoxy propyl alcohol amidogen ether and polypropylene glycerol aether are a variety of.
The preparation method of the magnetic core the following steps are included:
(1) will iron oxide, copper oxide, manganese oxide and nickel oxide mix after pour into crusher that carry out mixing broken, after will Its mixture pours into sand mill, and crosslinking agent and toughener is added, and the deionized water for adding 1-2 times of volume carries out mixing and grinds Mill, it is spare to obtain magnetic core base-material；
(2) will cobalt sesquioxide, yttrium oxide and boron nitride mix after pour into crusher that carry out mixing broken, after mixed It closes object to pour into sand mill, ethyl acetate, crosslinking agent and toughener, the deionized water for adding 1-2 times of volume is added and is mixed Grinding is closed, it is spare to obtain the first magnetic core auxiliary material；
(3) will niobium pentaoxide, molybdenum dioxide and silicon nitride mix after pour into crusher that carry out mixing broken, after by its Mixture pours into sand mill, and petroleum ether, crosslinking agent and toughener, the deionized water for adding 1-2 times of volume is added and is mixed Grinding is closed, it is spare to obtain the second magnetic core auxiliary material；
(4) magnetic core base-material, the first magnetic core auxiliary material and the second magnetic core auxiliary material in above-mentioned steps (1), (2) and (3) are mixed After pour into sand mill, add defoaming agent and carry out mixed grinding, after be mixed object and pour into high speed disperser, disperse one section It it is mixed object after time pours into drying machine and be dried, obtain magnetic core raw material for standby after dry；
(5) the magnetic core raw material in above-mentioned steps (4) is obtained into magnetic core blank by compression moulding, then magnetic core blank is put into In annealing furnace, be warming up to 1250-1300 DEG C, insulation annealing 2-4h, after be cooled to 400-500 DEG C, keep the temperature natural cooling after 1-2h Product is obtained to room temperature.
Wherein, magnetic core base-material, the first magnetic core auxiliary material and the second magnetic core auxiliary material in step (1), (2) and (3) are crushed to Granularity is 1-3cm, after to be ground to granularity be 1-3mm, and the additive amount of crosslinking agent and toughener is 1/ measured in formula every time 3；The granularity of magnetic core raw material in step (4) is 0.01-0.03mm, with the Rate Dispersion 20-30min of 1000-1200r/min, And drying temperature is 200-240 DEG C, drying to humidity is 3-7%.
Embodiment 2:
A kind of low-temperature-rise magnetic core, the magnetic core are made of raw material from the following weight: 54 parts of iron oxide, 22 parts of copper oxide, 16 parts of manganese oxide, 10 parts of nickel oxide, 18 parts of cobalt sesquioxide, 14 parts of yttrium oxide, 10 parts of ethyl acetate, 6 parts of boron nitride, five oxidations Two 18 parts of niobiums, 14 parts of molybdenum dioxide, 10 parts of petroleum ether, 6 parts of silicon nitride, 3 parts of crosslinking agent, 2 parts of toughener, 1.5 parts of defoaming agent.
Wherein, the crosslinking agent is one of calcium chloride dihydrate, epoxychloropropane and Dihydroxyaluminium Aminoacetate or a variety of；The toughening Agent is one of polyamide, polycarbonate and polyvinyl butyral or a variety of；The defoaming agent is silicone emulsion, gathers One of ethylene oxide polyoxy propyl alcohol amidogen ether and polypropylene glycerol aether are a variety of.
The preparation method of the magnetic core the following steps are included:
(1) will iron oxide, copper oxide, manganese oxide and nickel oxide mix after pour into crusher that carry out mixing broken, after will Its mixture pours into sand mill, and crosslinking agent and toughener is added, and the deionized water for adding 1-2 times of volume carries out mixing and grinds Mill, it is spare to obtain magnetic core base-material；
(2) will cobalt sesquioxide, yttrium oxide and boron nitride mix after pour into crusher that carry out mixing broken, after mixed It closes object to pour into sand mill, ethyl acetate, crosslinking agent and toughener, the deionized water for adding 1-2 times of volume is added and is mixed Grinding is closed, it is spare to obtain the first magnetic core auxiliary material；
(3) will niobium pentaoxide, molybdenum dioxide and silicon nitride mix after pour into crusher that carry out mixing broken, after by its Mixture pours into sand mill, and petroleum ether, crosslinking agent and toughener, the deionized water for adding 1-2 times of volume is added and is mixed Grinding is closed, it is spare to obtain the second magnetic core auxiliary material；
(4) magnetic core base-material, the first magnetic core auxiliary material and the second magnetic core auxiliary material in above-mentioned steps (1), (2) and (3) are mixed After pour into sand mill, add defoaming agent and carry out mixed grinding, after be mixed object and pour into high speed disperser, disperse one section It it is mixed object after time pours into drying machine and be dried, obtain magnetic core raw material for standby after dry；
(5) the magnetic core raw material in above-mentioned steps (4) is obtained into magnetic core blank by compression moulding, then magnetic core blank is put into In annealing furnace, be warming up to 1250-1300 DEG C, insulation annealing 2-4h, after be cooled to 400-500 DEG C, keep the temperature natural cooling after 1-2h Product is obtained to room temperature.
Wherein, magnetic core base-material, the first magnetic core auxiliary material and the second magnetic core auxiliary material in step (1), (2) and (3) are crushed to Granularity is 1-3cm, after to be ground to granularity be 1-3mm, and the additive amount of crosslinking agent and toughener is 1/ measured in formula every time 3；The granularity of magnetic core raw material in step (4) is 0.01-0.03mm, with the Rate Dispersion 20-30min of 1000-1200r/min, And drying temperature is 200-240 DEG C, drying to humidity is 3-7%.
Embodiment 3:
A kind of low-temperature-rise magnetic core, the magnetic core are made of raw material from the following weight: 56 parts of iron oxide, 24 parts of copper oxide, 18 parts of manganese oxide, 12 parts of nickel oxide, 20 parts of cobalt sesquioxide, 16 parts of yttrium oxide, 12 parts of ethyl acetate, 8 parts of boron nitride, five oxidations Two 20 parts of niobiums, 16 parts of molybdenum dioxide, 12 parts of petroleum ether, 8 parts of silicon nitride, 4 parts of crosslinking agent, 3 parts of toughener, 2 parts of defoaming agent.
Wherein, the crosslinking agent is one of calcium chloride dihydrate, epoxychloropropane and Dihydroxyaluminium Aminoacetate or a variety of；The toughening Agent is one of polyamide, polycarbonate and polyvinyl butyral or a variety of；The defoaming agent is silicone emulsion, gathers One of ethylene oxide polyoxy propyl alcohol amidogen ether and polypropylene glycerol aether are a variety of.
The preparation method of the magnetic core the following steps are included:
(1) will iron oxide, copper oxide, manganese oxide and nickel oxide mix after pour into crusher that carry out mixing broken, after will Its mixture pours into sand mill, and crosslinking agent and toughener is added, and the deionized water for adding 1-2 times of volume carries out mixing and grinds Mill, it is spare to obtain magnetic core base-material；
(2) will cobalt sesquioxide, yttrium oxide and boron nitride mix after pour into crusher that carry out mixing broken, after mixed It closes object to pour into sand mill, ethyl acetate, crosslinking agent and toughener, the deionized water for adding 1-2 times of volume is added and is mixed Grinding is closed, it is spare to obtain the first magnetic core auxiliary material；
(3) will niobium pentaoxide, molybdenum dioxide and silicon nitride mix after pour into crusher that carry out mixing broken, after by its Mixture pours into sand mill, and petroleum ether, crosslinking agent and toughener, the deionized water for adding 1-2 times of volume is added and is mixed Grinding is closed, it is spare to obtain the second magnetic core auxiliary material；
(4) magnetic core base-material, the first magnetic core auxiliary material and the second magnetic core auxiliary material in above-mentioned steps (1), (2) and (3) are mixed After pour into sand mill, add defoaming agent and carry out mixed grinding, after be mixed object and pour into high speed disperser, disperse one section It it is mixed object after time pours into drying machine and be dried, obtain magnetic core raw material for standby after dry；
(5) the magnetic core raw material in above-mentioned steps (4) is obtained into magnetic core blank by compression moulding, then magnetic core blank is put into In annealing furnace, be warming up to 1250-1300 DEG C, insulation annealing 2-4h, after be cooled to 400-500 DEG C, keep the temperature natural cooling after 1-2h Product is obtained to room temperature.
Wherein, magnetic core base-material, the first magnetic core auxiliary material and the second magnetic core auxiliary material in step (1), (2) and (3) are crushed to Granularity is 1-3cm, after to be ground to granularity be 1-3mm, and the additive amount of crosslinking agent and toughener is 1/ measured in formula every time 3；The granularity of magnetic core raw material in step (4) is 0.01-0.03mm, with the Rate Dispersion 20-30min of 1000-1200r/min, And drying temperature is 200-240 DEG C, drying to humidity is 3-7%.
Embodiment 4:
Detect the properties of magnetic core of the present invention, magnetic core obtained by selection above-described embodiment 1-3 and common on the market Magnetic core, using embodiment 1-3 obtained magnetic core as experimental group 1-3, common magnetic core is control group, as a result as shown in the table:
Group Experimental group 1 Experimental group 2 Experimental group 3 Control group
Limit of temperature rise (DEG C) < 13 < 10 < 15 < 25
(w/m is lost3) 305 290 315 535
Impedance (D) 186 223 208 131
Curie temperature (DEG C) 375 442 419 125
As seen from the above table, the properties of magnetic core obtained by the present invention are far superior to common magnetic core, and obtained by embodiment 2 Magnetic core properties it is best.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.

Claims (8)

1. a kind of low-temperature-rise magnetic core, which is characterized in that the magnetic core is made of raw material from the following weight: 52-56 parts of iron oxide, 20-24 parts of copper oxide, 14-18 parts of manganese oxide, 8-12 parts of nickel oxide, 16-20 parts of cobalt sesquioxide, 12-16 parts of yttrium oxide, acetic acid 8-12 parts of ethyl ester, 4-8 parts of boron nitride, 16-20 parts of niobium pentaoxide, 12-16 parts of molybdenum dioxide, 8-12 parts of petroleum ether, silicon nitride 4-8 parts, 2-4 parts of crosslinking agent, 1-3 parts of toughener, 1-2 parts of defoaming agent.
2. a kind of low-temperature-rise magnetic core according to claim 1, which is characterized in that the magnetic core by following parts by weight raw material It is made: 54 parts of iron oxide, 22 parts of copper oxide, 16 parts of manganese oxide, 10 parts of nickel oxide, 18 parts of cobalt sesquioxide, 14 parts of yttrium oxide, second 10 parts of acetoacetic ester, 6 parts of boron nitride, 18 parts of niobium pentaoxide, 14 parts of molybdenum dioxide, 10 parts of petroleum ether, 6 parts of silicon nitride, crosslinking agent 3 Part, 2 parts of toughener, 1.5 parts of defoaming agent.
3. a kind of low-temperature-rise magnetic core according to claim 1 to 2, which is characterized in that the crosslinking agent be calcium chloride dihydrate, One of epoxychloropropane and Dihydroxyaluminium Aminoacetate are a variety of.
4. a kind of low-temperature-rise magnetic core according to claim 1 to 2, which is characterized in that the toughener is polyamide, poly- carbon One of acid esters fiber and polyvinyl butyral are a variety of.
5. a kind of low-temperature-rise magnetic core according to claim 1 to 2, which is characterized in that the defoaming agent is silicone emulsion, gathers One of ethylene oxide polyoxy propyl alcohol amidogen ether and polypropylene glycerol aether are a variety of.
6. a kind of preparation method of low-temperature-rise magnetic core, which is characterized in that the preparation method of the magnetic core the following steps are included:
(1) will iron oxide, copper oxide, manganese oxide and nickel oxide mix after pour into crusher that carry out mixing broken, after mixed It closes object to pour into sand mill, crosslinking agent and toughener is added, the deionized water for adding 1-2 times of volume carries out mixed grinding, obtains Magnetic core base-material is spare；
(2) will cobalt sesquioxide, yttrium oxide and boron nitride mix after pour into crusher that carry out mixing broken, after be mixed object It pours into sand mill, ethyl acetate, crosslinking agent and toughener is added, the deionized water for adding 1-2 times of volume carries out mixing and grinds Mill, it is spare to obtain the first magnetic core auxiliary material；
(3) will niobium pentaoxide, molybdenum dioxide and silicon nitride mix after pour into crusher that carry out mixing broken, after be mixed Object pours into sand mill, and petroleum ether, crosslinking agent and toughener is added, and the deionized water for adding 1-2 times of volume carries out mixing and grinds Mill, it is spare to obtain the second magnetic core auxiliary material；
(4) it is fallen after mixing magnetic core base-material, the first magnetic core auxiliary material and the second magnetic core auxiliary material in above-mentioned steps (1), (2) and (3) Enter in sand mill, add defoaming agent and carry out mixed grinding, after be mixed object and pour into high speed disperser, dispersion a period of time After be mixed object and pour into drying machine and be dried, obtain magnetic core raw material for standby after dry；
(5) the magnetic core raw material in above-mentioned steps (4) is obtained into magnetic core blank by compression moulding, then magnetic core blank is put into annealing In furnace, be warming up to 1250-1300 DEG C, insulation annealing 2-4h, after be cooled to 400-500 DEG C, naturally cool to room after keeping the temperature 1-2h Temperature obtains product.
7. a kind of preparation method of low-temperature-rise magnetic core according to claim 6, it is characterised in that: step (1), (2) and (3) In magnetic core base-material, the first magnetic core auxiliary material and the second magnetic core auxiliary material be crushed to granularity be 1-3cm, after be ground to granularity be 1- 3mm, and the additive amount of crosslinking agent and toughener is 1/3 measured in formula every time.
8. a kind of preparation method of low-temperature-rise magnetic core according to claim 6, it is characterised in that: the magnetic core in step (4) The granularity of raw material is 0.01-0.03mm, and with the Rate Dispersion 20-30min of 1000-1200r/min, and drying temperature is 200- 240 DEG C, drying to humidity is 3-7%.
CN201811487066.2A 2018-12-06 2018-12-06 A kind of low-temperature-rise magnetic core and preparation method thereof Withdrawn CN109534808A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002054419A1 (en) * 2000-12-27 2002-07-11 Fdk Corporation Oxide magnetic material exhibiting low magnetic loss
JP2006182571A (en) * 2004-12-24 2006-07-13 Taiyo Yuden Co Ltd Oxide magnetic material
CN1929048A (en) * 2006-09-05 2007-03-14 电子科技大学 NiZn soft magnetic ferrite material with high magnetic conductivity and high Curie temperature and its preparing method
JP2014091644A (en) * 2012-11-01 2014-05-19 Tdk Corp Ferrite composition, ferrite core and electronic component
JP6465240B1 (en) * 2018-05-28 2019-02-06 Tdk株式会社 Ferrite composition and laminated electronic component

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002054419A1 (en) * 2000-12-27 2002-07-11 Fdk Corporation Oxide magnetic material exhibiting low magnetic loss
JP2006182571A (en) * 2004-12-24 2006-07-13 Taiyo Yuden Co Ltd Oxide magnetic material
CN1929048A (en) * 2006-09-05 2007-03-14 电子科技大学 NiZn soft magnetic ferrite material with high magnetic conductivity and high Curie temperature and its preparing method
JP2014091644A (en) * 2012-11-01 2014-05-19 Tdk Corp Ferrite composition, ferrite core and electronic component
JP6465240B1 (en) * 2018-05-28 2019-02-06 Tdk株式会社 Ferrite composition and laminated electronic component

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