CN110534283A - Composite amorphous powder core and preparation method thereof - Google Patents

Composite amorphous powder core and preparation method thereof Download PDF

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Publication number
CN110534283A
CN110534283A CN201910883437.7A CN201910883437A CN110534283A CN 110534283 A CN110534283 A CN 110534283A CN 201910883437 A CN201910883437 A CN 201910883437A CN 110534283 A CN110534283 A CN 110534283A
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powder
amorphous
composite
mesh
insulating
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王策
孙海波
陈卫红
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Foshan Zhongyan Amorphous Technology Co Ltd
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Foshan Zhongyan Amorphous Technology Co Ltd
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Priority to CN201910883437.7A priority Critical patent/CN110534283A/en
Publication of CN110534283A publication Critical patent/CN110534283A/en
Priority to CN202010047697.3A priority patent/CN111048274A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
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    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
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    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
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    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
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    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
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    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C45/00—Amorphous alloys
    • C22C45/02—Amorphous alloys with iron as the major constituent
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    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15341—Preparation processes therefor
    • H01F1/1535—Preparation processes therefor by powder metallurgy, e.g. spark erosion
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    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15358—Making agglomerates therefrom, e.g. by pressing
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    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H—ELECTRICITY
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    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
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    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/248—Thermal after-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B22F2009/0824—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid
    • B22F2009/0828—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid with water

Abstract

A kind of composite amorphous powder core provided by the invention, it is characterized in that, containing composite amorphous alloy powder, the composite amorphous alloy powder includes flaky first amorphous powder and in the second spherical amorphous powder, and first amorphous powder is uniformly mixed with second amorphous powder；The composite amorphous alloy powder surface is coated with insulating coating；Additionally provide the preparation method of the composite amorphous powder core；The composite amorphous powder core, the amorphous powder mixing application setting based on its variety classes morphological types, and have the beneficial effect of high direct current biasing ability.

Description

Composite amorphous powder core and preparation method thereof
Technical field
The present invention relates to magnetically soft alloy metallurgical technology fields, and in particular to a kind of composite amorphous powder core and its preparation side Method.
Background technique
Non-crystalline material has high saturation magnetic strength, high magnetic permeability, low-coercivity and low high-frequency loss, good strong Degree, wearability and corrosion resistance, good temperature and environmental stability etc., excellent comprehensive performance, instead of permalloy, silicon Steel and ferrite, are applied in power electronic technique, show the features such as small in size, high-efficient, energy saving, soft in all metals There is the optimal ratio of performance to price in magnetic material.
In the prior art, powder core, flouring technology can be prepared into its powder again by the way that amorphous alloy is carried out powder processed Or amorphous band is crushed, or powder preparation is carried out by water atomization process.
Insulating wrapped is the key technology in powder core preparation process, and insulating coating performance is to influence powder core high frequency damage An important factor for consumption, will sharply increase the eddy-current loss between magnetic powder particle if insulating coating cladding is imperfect or is destroyed, To increase the high-frequency loss of powder core.
Under normal conditions, need to carry out magnetic powder wicking surface the cladding of insulating coating；In in the prior art, surface insulation Coating is common the problems such as point, exposed, coating is uneven.
Summary of the invention
It is an object of the invention to provide a kind of for being electromagnetically shielded piece and its production in order to overcome the deficiencies of the prior art Method.
Composite amorphous powder core, containing composite amorphous alloy powder, the composite amorphous alloy powder includes flaky First amorphous powder and in the second spherical amorphous powder, first amorphous powder is uniformly mixed with second amorphous powder It closes；The composite amorphous alloy powder surface is coated with insulating coating.
Further, the mesh number range of first amorphous powder is -100~+270 mesh, second amorphous powder Mesh number range is -200~+400 mesh.
Further, the powder mixture ratio of first amorphous powder are as follows: -100 mesh~+150 mesh accountings 10~30%, -150 Mesh~20~50%, -200 mesh of+200 mesh accounting~+270 mesh accountings 10~30%；The accounting of second amorphous powder is 10 ~40%.
Further, powder material used by first amorphous powder and/or the second amorphous powder is that FeSiB system is non- Peritectic alloy.
Further, powder material used by first amorphous powder and/or the second amorphous powder is Fe78Si9B13。
The preparation method of composite amorphous powder core as described above, comprising the following steps:
S1, selection have amorphous band to carry out Mechanical Crushing, and acquisition has first amorphous powder；
S2, selection have amorphous alloy to carry out water atomization processing, and acquisition has second amorphous powder；
S3, first amorphous powder and second amorphous powder are subjected to proportion mixing, obtain composite amorphous alloyed powder End；
S4, the composite amorphous alloy powder of gained is subjected to insulating wrapped processing, obtains cladding powder；
S5, gained cladding powder is added with lubricant, and mixing is stirred with blender, obtained it is composite amorphous at Product powder；
S6, the composite amorphous finished powder of gained is subjected to compression process, sintering processes, annealing and curing process, obtained To there is powder core matrix；
S7, the powder core matrix is subjected to surface coated treatment, obtains composite amorphous powder core.
Further, in step S4, using there is the first insulating coating method to carry out insulating wrapped processing, described first Insulating coating method the following steps are included:
S4-01, inorganic powder is mixed with ultrasonic wave and is attached on the composite amorphous alloy powder, obtained attachment Powder；
S4-02, aqueous slkali is mixed with the attaching powder and is sufficiently reacted, be dried, so that the attachment Powder surface is formed with insulating coating, has obtained the cladding powder.
Further, the described first and/or second amorphous powder contains Fe and/or Si；Then in step S4, using having Two insulating coating methods to carry out insulating wrapped processing, second insulating coating method the following steps are included:
S4-11, so that rotary furnace preheating is heated to 240~450 DEG C, and the composite amorphous alloy powder is added to described time In converter；
S4-12, to oxygen-containing air has been continually fed into the rotary furnace, the composite amorphous alloy powder is in the revolution It is overturn in furnace, and the composite amorphous alloy powder surface is enabled sufficiently to be reacted with the oxygen-containing air, so that described compound Amorphous powdered alloy surface is formed with insulating coating, has obtained the cladding powder.
Further, in step S4, using there is third insulating coating method to carry out insulating wrapped processing, the third Insulating coating method the following steps are included:
S4-31, it states composite amorphous alloy powder to described using the inorganic matter of caking property and is added, be uniformly mixed, with It enables this state composite amorphous alloy powder surface and is formed with insulating coating, obtained the cladding powder.
Further, in step S7, using having a kind of amorphous product surface Coating Processes to the powder core Matrix carry out surface coated treatment, the amorphous product surface Coating Processes the following steps are included:
S7-1, surface preparation is carried out to the powder core matrix, so that the powder core matrix surface is formed with pretreatment exhausted Edge layer；
S7-2, the pre-heat treatment is carried out to the powder core matrix after surface preparation, is then rolled with the second insulating materials Painting processing；The powder core matrix after the pre-heat treatment adsorbs with self heat and melts second insulating materials, so that institute It states and is formed with roller coating coating on pretreatment insulating layer.
The beneficial effects of the present invention are:
The composite amorphous powder core, the amorphous powder mixing application setting based on its variety classes morphological types, and have There is the beneficial effect of high direct current biasing ability.
Specific embodiment
In order to make technical solution of the present invention, purpose and its advantage more clearly, with reference to embodiments, to the present invention Explanation is further explained.
Composite amorphous alloy powder of the invention, including flaky first amorphous powder and in the second amorphous of near-spherical Powder, first amorphous powder are uniformly mixed with second amorphous powder, then preparation method can comprise the following steps that
S1, selection have amorphous band to carry out Mechanical Crushing, and acquisition has first amorphous powder；
S2, selection have amorphous alloy to carry out water atomization processing, and acquisition has second amorphous powder；
S3, first amorphous powder and second amorphous powder are subjected to proportion mixing, obtain composite amorphous alloyed powder End.
Specifically, the proportion hybrid mode of first amorphous powder and the second amorphous powder is as follows in step S3:
The mesh number range of first amorphous powder is -100~+270 mesh, and the mesh number range of second amorphous powder is - 200~+400 mesh.- 100 mesh~10~30%, -150 mesh of+150 mesh accounting~20~50%, -200 mesh of+200 mesh accounting~+ 270 mesh accountings 10~30%；The accounting of second amorphous powder is 10~40%.Wherein pass through the above-mentioned different mesh of adjustment The accounting mixed configuration of the composite amorphous alloy powder of number setting, to obtain the composite amorphous alloy powder of good fluidity, powder The major parameter of good fluidity are as follows: apparent density, tap density, angle of repose, dispersion degree etc.；Overall target is slamp value, The index can be tested using Dandong Bai Te powder characteristics analyzer；The above are good levels for slamp value 70, and flow Sex index is bigger, and mobility is better；The powder of good fluidity resistance between forming process medium silt is smaller, is conducive to form；Together Under kind pressure condition, its manufactured powder core density can be made bigger, properties of product are more preferably.
The powder material of first amorphous powder and the second amorphous powder is FeSiB system amorphous alloy, specifically, being Fe78Si9B13；The amorphous alloy be take appropriate weight ingot iron, ferroboron, industrial silicon put into smelting furnace smelted and Preparation gained.
And based on above-mentioned composite amorphous alloy powder is prepared, by the cladding for carrying out insulating coating in its surface Processing, can be prepared with a kind of composite amorphous finished powder, then the preparation method of the composite amorphous finished powder, based on above-mentioned compound The preparation method of amorphous powdered alloy, further comprising the steps of:
S4, the composite amorphous alloy powder of gained is subjected to insulating wrapped processing, obtains cladding powder；
S5, the cladding powder is added with lubricant, and mixing is stirred with blender, obtain composite amorphous finished product Powder.
Embodiment 1:
In step S4, using there is the first insulating coating method to carry out insulating wrapped processing, first insulating wrapped Method the following steps are included:
S4-01, inorganic powder is mixed with ultrasonic wave and is attached on the composite amorphous alloy powder, obtained attachment Powder；
S4-02, aqueous slkali is mixed with the attaching powder and is sufficiently reacted, be dried, so that the attachment Powder surface is formed with insulating coating, has obtained the cladding powder.
The inorganic powder is SiO2Or Fe2O3Equal inorganic oxides；The mesh number of the inorganic powder is 8000 mesh or more, Achieve the effect that ultra-fine, particle levels off to nanoscale.
Specifically, the composite amorphous alloy powder of above-mentioned each mesh number is made to be cooperated and be uniformly mixed with V-mixer, Meanwhile making the V-mixer in the mixing process of the composite amorphous alloy powder, using there is ultrasonic activation instrument, To carry out ultrasonic wave output, certain adsorption capacity is had based on the ultra-fine inorganic powder itself, to enable the inorganic powder It is equably attached on composite amorphous alloy powder, has obtained attaching powder.
Aqueous slkali is mixed with the attaching powder and is sufficiently reacted, the aqueous slkali may be selected to be NaOH solution, Then in above-mentioned reaction process, or include chemical equation: SiO2+ 2NaOH=Na2SiO3+H2O, normal temperature condition stir evenly Sufficiently reaction；To the attaching powder addition binder after sufficiently being reacted with aqueous slkali to be stirred to evenly drying, so that institute It states attaching powder surface and is formed with band Na2SiO3Insulating coating, to have obtained cladding powder.
The binder is the inorganic matter or organic binder of caking property；The binder is silicone resin or waterglass or ring Oxygen resin, the additive amount of the binder are 0.2~2.5%.
The inorganic powder can increase inorganic powder according to performance requirement according to content needed for the insulating coating for forming single layer Additive amount；The insulating coating thickness for enabling gained adhere to levels off to single layer, close to complete attachment.
Embodiment 2:
There is the Fe containing Fe and Si based on the described first and/or second amorphous powder application78Si9B13；Then in step S4, answer With there is the second insulating coating method to carry out insulating wrapped processing, second insulating coating method the following steps are included:
S4-11, so that rotary furnace preheating is heated to 240~450 DEG C, and the composite amorphous alloy powder is added to described time In converter；
S4-12, to oxygen-containing air has been continually fed into the rotary furnace, the composite amorphous alloy powder is in the revolution It is overturn in furnace, and the composite amorphous alloy powder surface is enabled sufficiently to be reacted with the oxygen-containing air, so that described compound Amorphous powdered alloy surface is formed with insulating coating, has obtained the cladding powder.
Specifically, making gained mixed-powder carrying out baking processing with rotary furnace to enable its stress relief annealing；Described time It is provided with corresponding Tong Yang mechanism and turnover mechanism in converter, makes to be continually fed into oxygen-containing sky in the rotary furnace with Tong Yang mechanism Gas, and mixed-powder in furnace is overturn with its turnover mechanism, and the mixed-powder surface and the oxygen-containing air is enabled to be had Sufficiently reaction, chemical equation include；Fe+O2=Fe2O3And Si+O2=SiO2, overturn and stir evenly abundant reaction；So that The mixed-powder surface is formed with the insulating coating with corresponding oxide, to have obtained cladding powder.
Embodiment 3:
In step S4, using there is third insulating coating method to carry out insulating wrapped processing, the third insulating wrapped Method the following steps are included:
S4-31, it states composite amorphous alloy powder to described using the inorganic matter of caking property and is added, be uniformly mixed, with It enables this state composite amorphous alloy powder surface and is formed with insulating coating, obtained the cladding powder.
Biaxial rneader is added in gained mixed-powder, and the inorganic matter that caking property is added is stirred up to uniform, To enable the mixed-powder surface form insulating coating, cladding powder has been obtained；The inorganic matter of used caking property is sodium metasilicate Solution or inorganic polysiloxane, preferably sodium silicate solution, the sodium silicate solution modulus preferably 2.5~3.5, Baume degrees is preferred 0.35~0.48, the used ratio of the sodium silicate solution is 0.5~3.2%, is diluted with diluent, the diluent ratio It is 1.2~6.5%, diluent selection may include but be not limited to acetone, ethyl alcohol.
In above-described embodiment 1,2 and 3, used lubricant includes but is not limited to zinc stearate, paraffin, barium stearate.
And again based on above-mentioned composite amorphous finished powder, the preparation for having a kind of composite amorphous powder core can be carried out, then should The preparation method of composite amorphous powder core, further comprising the steps of based on the preparation method of above-mentioned composite amorphous finished powder:
S6, the composite amorphous finished powder of gained is subjected to compression process, sintering processes, annealing and curing process, obtained To there is powder core matrix.
S7, the powder core matrix is subjected to surface coated treatment, obtains composite amorphous powder core.
Then in above-mentioned steps S7, using having a kind of powder core matrix surface Coating Processes to the powder core base Block carry out surface coated treatment, the powder core matrix surface Coating Processes the following steps are included:
S7-1, surface preparation is carried out to the powder core matrix, so that the powder core matrix surface is formed with pretreatment exhausted Edge layer；
S7-2, to after surface preparation powder core matrix carry out the pre-heat treatment, the pre-heat treatment temperature be 180~ 240℃；Then roller coating processing is carried out with the second insulating materials；The powder core matrix after the pre-heat treatment is adsorbed with self heat And melt second insulating materials, so as to be formed with roller coating coating on the pretreatment insulating layer.
Second insulating materials is acetals insulating powder or phenolic insulating powder or epoxies insulating powder.
The thickness range of the pretreatment insulating layer is 20~150 μm, preferably 30~80 μm；The thickness of the roller coating coating Spending range is 100~400 μm, preferably 150~250 μm.
Embodiment 4:
In step S7-1, comprising the following steps:
S7-1-01, heat temperature raising is carried out to the powder core matrix, heat temperature raising temperature is 150~250 DEG C；
S7-1-2, use electrostatic spraying device with the progress of the first insulating powder to the powder core matrix after heat temperature raising There is electrostatic spraying processing, so that the powder core matrix surface is formed with the pretreatment insulating layer；First insulating powder is Acetals insulating powder or phenolic insulating powder or epoxies insulating powder.
Embodiment 5:
In step S7-1, comprising the following steps:
S7-1-11, liquid spray gun is used to carry out spray treatment with the first insulated paint to the powder core matrix；Described first Insulated paint is acetals insulated paint or phenolic insulated paint or epoxies insulated paint；
S7-1-12, baking heating is carried out to the powder core matrix after spray treatment, the baking warming temperature is 100~150 DEG C；So that the powder core matrix surface is formed with the pretreatment insulating layer.
Specifically, the powder core matrix surface Coating Processes application principle is as follows:
It first passes through and surface preparation has been carried out to the powder core matrix with the first insulating powder or the first insulated paint, so that Coarse powder core matrix surface preparation is formed with the pretreatment insulating layer of relatively thin insulation, improves the insulation of the powder core matrix Property and to a certain degree Shangdi make up the powder core matrix surface defect (as residual hole)；Again with the second insulating materials to the magnetic Powder core matrix carries out roller coating processing.The second insulation under the premise of the warmed-up processing of the powder core matrix itself, in the magazine Material can be adsorbed with roller applications by the powder core matrix with heat to be formed with roller coating coating.
During roller coating, powder core matrix is in rolling condition in the magazine, passes through the parameter and work of roller coating equipment Skill adjustment can efficiently control the uniformity of its roller coating coating formation to control the rolling speed of the powder core matrix；Make institute The second insulating materials is stated to be put together in a magazine, enable the second insulating materials concentrated setting during the roller coating without It dissipates from then the roller coating process substantially will not additionally consume second insulating materials, to realize the saving of raw material.
Compared with the prior art direct carries out powder core matrix surface using spraying method or directly using roller applications Insulating coating processing, this programme is based under the substep processed and applied of double hyer insulation coating, by adjusting of roller coating equipment parameter Match, to control its insulation coating layer thickness and uniformity, and improves the surface quality of its insulating coating.
Embodiment 6:
It is prepared with into and is grouped into Fe78Si9B13Amorphous alloy；And with this carry out sheet first amorphous powder and It is prepared by the second amorphous powder of near-spherical；
Gained amorphous powder is sieved, makes first amorphous powder with -100 mesh~+150 mesh accountings 20%, - 150 mesh~+200 mesh accountings 40%, -200 mesh~+270 mesh accountings 15% are matched；Second amorphous powder is with -200 mesh ~+400 mesh accountings 25% are matched；Proportion gained amorphous powder repeats to be uniformly mixed, corresponding composite amorphous to have obtained Alloy powder, and corresponding composite amorphous powder core is prepared with this.
It is as follows through detection target product and application amorphous core performance, market similar product performance prepared by it:
Embodiment 7:
It is prepared with into and is grouped into Fe78Si8.5B13.5Amorphous alloy, and carry out with this described first non-crystalline flour of sheet End；
It is prepared with into and is grouped into Fe78Si9B13Amorphous alloy, and carry out with this second amorphous powder system of near-spherical It is standby；
Gained amorphous powder is sieved, makes first amorphous powder with -100 mesh~+150 mesh accountings 20%, - 150 mesh~+200 mesh accountings 40%, -200 mesh~+270 mesh accountings 15% are matched；Second amorphous powder is with -200 mesh ~+400 mesh accountings 25% are matched；Proportion gained amorphous powder repeats to be uniformly mixed, corresponding composite amorphous to have obtained Alloy powder, and corresponding composite amorphous powder core is prepared with this.
It is as follows through detection target product and application amorphous core performance, market similar product performance prepared by it:
Embodiment 8:
It is prepared with into and is grouped into Fe78Si9B13Amorphous alloy；And with this carry out sheet first amorphous powder and It is prepared by the second amorphous powder of near-spherical；
Gained amorphous powder is sieved, makes first amorphous powder with -100 mesh~+150 mesh accountings 30%, - 150 mesh~+200 mesh accountings 40%, -200 mesh~+270 mesh accountings 10% are matched；Second amorphous powder is with -200 mesh ~+400 mesh accountings 20% are matched；Proportion gained amorphous powder repeats to be uniformly mixed, corresponding composite amorphous to have obtained Alloy powder, and corresponding composite amorphous powder core is prepared with this.
It is as follows through detection target product and application amorphous core performance, market similar product performance prepared by it:
Embodiment 9:
It is prepared with into and is grouped into Fe78Si9B13Amorphous alloy；And with this carry out sheet first amorphous powder and It is prepared by the second amorphous powder of near-spherical；
Gained amorphous powder is sieved, makes first amorphous powder with -100 mesh~+150 mesh accountings 25%, - 150 mesh~+200 mesh accountings 35%, -200 mesh~+270 mesh accountings 25% are matched；Second amorphous powder is with -200 mesh ~+400 mesh accountings 15% are matched；Proportion gained amorphous powder repeats to be uniformly mixed, corresponding composite amorphous to have obtained Alloy powder, and corresponding composite amorphous powder core is prepared with this.
It is as follows through detection target product and application amorphous core performance, market similar product performance prepared by it:
Embodiment 10:
It is prepared with into and is grouped into Fe78Si9B13Amorphous alloy；And with this carry out sheet first amorphous powder and It is prepared by the second amorphous powder of near-spherical；
Gained amorphous powder is sieved, makes first amorphous powder with -100 mesh~+150 mesh accountings 20%, - 150 mesh~+200 mesh accountings 40%, -200 mesh~+270 mesh accountings 15% are matched；Second amorphous powder is with -200 mesh ~+400 mesh accountings 25% are matched；Proportion gained amorphous powder repeats to be uniformly mixed, corresponding composite amorphous to have obtained Alloy powder.
Carry out the composite amorphous alloy powder of gained at insulating wrapped with the second insulating coating method in above-described embodiment 2 Reason, and corresponding composite amorphous powder core is prepared with this.
It is as follows through detection target product and application amorphous core performance, market similar product performance prepared by it:
Embodiment 11:
It is prepared with into and is grouped into Fe78Si9B13Amorphous alloy；And with this carry out sheet first amorphous powder and It is prepared by the second amorphous powder of near-spherical；
Gained amorphous powder is sieved, makes first amorphous powder with -100 mesh~+150 mesh accountings 20%, - 150 mesh~+200 mesh accountings 40%, -200 mesh~+270 mesh accountings 15% are matched；Second amorphous powder is with -200 mesh ~+400 mesh accountings 25% are matched；Proportion gained amorphous powder repeats to be uniformly mixed, corresponding composite amorphous to have obtained Alloy powder.
Carry out the composite amorphous alloy powder of gained at insulating wrapped with the third insulating coating method in above-described embodiment 3 Reason, and corresponding composite amorphous powder core is prepared with this.
It is as follows through detection target product and application amorphous core performance, market similar product performance prepared by it:
Embodiment 12:
It is prepared with into and is grouped into Fe78Si9B13Amorphous alloy；And with this carry out sheet first amorphous powder and It is prepared by the second amorphous powder of near-spherical；
Gained amorphous powder is sieved, makes first amorphous powder with -100 mesh~+150 mesh accountings 20%, - 150 mesh~+200 mesh accountings 40%, -200 mesh~+270 mesh accountings 15% are matched；Second amorphous powder is with -200 mesh ~+400 mesh accountings 25% are matched；Proportion gained amorphous powder repeats to be uniformly mixed, corresponding composite amorphous to have obtained Alloy powder.
Make the composite amorphous alloy powder of gained that triosephosphate solution be added, is stirred until homogeneous drying, wherein phosphoric acid is 0.2%, acetone 4.0%；Then 0.6% silicone resin, 4.0% acetone mixture are added, and is uniformly mixed drying, it is exhausted to complete The processing of edge cladding, has obtained cladding powder；Then 0.6% zinc stearate is added in the cladding powder, is uniformly mixed, obtains To there is composite amorphous finished powder.
By composite amorphous finished powder compression moulding 27*15*11 amorphous magnet ring, then amorphous magnet ring is annealed, 450 DEG C of middle annealing temperature, annealing time 40min.
Product after annealing is immersed into epoxy resin acetone soln, 10min is impregnated, carries out baking and curing processing with 120 DEG C； Then cured article is subjected to surface insulation layer processing, corresponding composite amorphous powder core is prepared with this.
It is as follows through detection target product and application amorphous core performance, market similar product performance prepared by it:
Embodiment 13:
It is prepared with into and is grouped into Fe78Si9B13Amorphous alloy；And with this carry out sheet first amorphous powder and It is prepared by the second amorphous powder of near-spherical；
Gained amorphous powder is sieved, makes first amorphous powder with -100 mesh~+150 mesh accountings 20%, - 150 mesh~+200 mesh accountings 40%, -200 mesh~+270 mesh accountings 15% are matched；Second amorphous powder is with -200 mesh ~+400 mesh accountings 25% are matched；Proportion gained amorphous powder repeats to be uniformly mixed, corresponding composite amorphous to have obtained Alloy powder.
The composite amorphous alloy powder of gained is added in rotary furnace and carries out oxide isolated processing, wherein revolution furnace temperature 350 DEG C, furnace body revolving speed 20r/min is passed through air oxygen content 23 ± 0.5%, and powder overturns baking time 12h；Then 0.6% is added Silicone resin, 4.0% acetone mixture, and it is uniformly mixed drying, obtain cladding powder.
0.6% zinc stearate is added in cladding powder, is uniformly mixed, obtains composite amorphous finished powder；
By composite amorphous finished powder compression moulding 27*15*11 amorphous magnet ring；Amorphous magnet ring is annealed again, wherein 450 DEG C of annealing temperature, annealing time 40min.
Product after annealing is immersed into epoxy resin acetone soln, 10min is impregnated, carries out baking and curing processing with 120 DEG C； Then cured article is subjected to surface insulation layer processing, obtains corresponding composite amorphous powder core.
It is as follows through detection target product and application amorphous core performance, market similar product performance prepared by it:
Embodiment 14:
It is prepared with into and is grouped into Fe78Si9B13Amorphous alloy；And with this carry out sheet first amorphous powder and It is prepared by the second amorphous powder of near-spherical；
Gained amorphous powder is sieved, makes first amorphous powder with -100 mesh~+150 mesh accountings 20%, - 150 mesh~+200 mesh accountings 40%, -200 mesh~+270 mesh accountings 15% are matched；Second amorphous powder is with -200 mesh ~+400 mesh accountings 25% are matched；Proportion gained amorphous powder repeats to be uniformly mixed, corresponding composite amorphous to have obtained Alloy powder.
Sodium silicate aqueous solution is added in the composite amorphous alloy powder of gained, stirs evenly simultaneously drying and processing, wherein sodium metasilicate Ratio 0.8%, pure water 4.0%, 80 DEG C of drying temperature；Then 0.6% silicone resin, 4.0% acetone mixture are added, and is mixed Evenly drying is closed, cladding powder has been obtained.
0.6% zinc stearate is added in cladding powder, is uniformly mixed, obtains composite amorphous finished powder；
By composite amorphous finished powder compression moulding 27*15*11 amorphous magnet ring；Amorphous magnet ring is annealed again, wherein 450 DEG C of annealing temperature, annealing time 40min.
Product after annealing is immersed into epoxy resin acetone soln, 10min is impregnated, carries out baking and curing processing with 120 DEG C； Then cured article is subjected to surface insulation layer processing, obtains corresponding composite amorphous powder core.
It is as follows through detection target product and application amorphous core performance, market similar product performance prepared by it:
The foregoing is merely the preferred embodiment of the present invention not to depart from this for those skilled in the art Under the premise of the implementation principle of invention, it can still modify to the embodiment, and corresponding modification also should be regarded as this hair Bright protection scope.

Claims (10)

1. composite amorphous powder core, which is characterized in that containing composite amorphous alloy powder, the composite amorphous alloy powder includes Flaky first amorphous powder and in the second spherical amorphous powder, first amorphous powder and second amorphous powder Uniformly mixing；The composite amorphous alloy powder surface is coated with insulating coating.
2. composite amorphous powder core as described in claim 1, which is characterized in that the mesh number range of first amorphous powder For -100~+270 mesh, the mesh number range of second amorphous powder is -200~+400 mesh.
3. composite amorphous powder core as claimed in claim 2, which is characterized in that the powder mixture ratio of first amorphous powder Are as follows: -100 mesh~10~30%, -150 mesh of+150 mesh accounting~20~50%, -200 mesh of+200 mesh accounting~+270 mesh accountings 10 ~30%；The accounting of second amorphous powder is 10~40%.
4. composite amorphous powder core as described in claim 1, which is characterized in that first amorphous powder and/or second non- Powder material used by crystalline flour end is FeSiB system amorphous alloy.
5. composite amorphous powder core as claimed in claim 4, which is characterized in that first amorphous powder and/or second non- Powder material used by crystalline flour end is Fe78Si9B13。
6. the preparation method of composite amorphous powder core as claimed in claim 1 to 5, which is characterized in that including following step It is rapid:
S1, selection have amorphous band to carry out Mechanical Crushing, and acquisition has first amorphous powder；
S2, selection have amorphous alloy to carry out water atomization processing, and acquisition has second amorphous powder；
S3, first amorphous powder and second amorphous powder are subjected to proportion mixing, obtain composite amorphous alloy powder；
S4, the composite amorphous alloy powder of gained is subjected to insulating wrapped processing, obtains cladding powder；
S5, gained cladding powder is added with lubricant, and mixing is stirred with blender, obtain composite amorphous finished powder End；
S6, the composite amorphous finished powder of gained is subjected to compression process, sintering processes, annealing and curing process, is had Powder core matrix；
S7, the powder core matrix is subjected to surface coated treatment, obtains composite amorphous powder core.
7. preparation method as claimed in claim 6, which is characterized in that in step S4, using there is the first insulating coating method To carry out insulating wrapped processing, first insulating coating method the following steps are included:
S4-01, inorganic powder is mixed with ultrasonic wave and is attached on the composite amorphous alloy powder, obtained attachment powder End；
S4-02, aqueous slkali is mixed with the attaching powder and is sufficiently reacted, be dried, so that the attaching powder Surface is formed with insulating coating, has obtained the cladding powder.
8. preparation method as claimed in claim 6, which is characterized in that the described first and/or second amorphous powder contain Fe and/ Or Si；Then in step S4, using there is the second insulating coating method to carry out insulating wrapped processing, the second insulating wrapped side Method the following steps are included:
S4-11, so that rotary furnace preheating is heated to 240~450 DEG C, and the composite amorphous alloy powder is added to the rotary furnace In；
S4-12, to oxygen-containing air has been continually fed into the rotary furnace, the composite amorphous alloy powder is in the rotary furnace It is overturn, and the composite amorphous alloy powder surface is enabled sufficiently to be reacted with the oxygen-containing air, so that described composite amorphous Alloy powder surface is formed with insulating coating, has obtained the cladding powder.
9. preparation method as claimed in claim 6, which is characterized in that in step S4, using there is third insulating coating method To carry out insulating wrapped processing, the third insulating coating method the following steps are included:
S4-31, it states composite amorphous alloy powder to described using the inorganic matter of caking property and is added, be uniformly mixed, with enable should It states composite amorphous alloy powder surface and is formed with insulating coating, obtained the cladding powder.
10. preparation method as claimed in claim 6, which is characterized in that in step S7, using there is a kind of amorphous product surface Coating Processes are to carry out surface coated treatment, the amorphous product surface Coating Processes packet to the powder core matrix Include following steps:
S7-1, surface preparation is carried out to the powder core matrix, the powder core matrix surface is made to be formed with pretreatment insulating layer；
S7-2, the pre-heat treatment is carried out to the powder core matrix after surface preparation, is then carried out at roller coating with the second insulating materials Reason；The powder core matrix after the pre-heat treatment adsorbs with self heat and melts second insulating materials, so that described pre- Roller coating coating is formed on processing insulating layer.
CN201910883437.7A 2019-09-18 2019-09-18 Composite amorphous powder core and preparation method thereof Pending CN110534283A (en)

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CN111048274A (en) * 2019-09-18 2020-04-21 佛山市中研非晶科技股份有限公司 Composite magnetic powder core and preparation method thereof
CN111068992A (en) * 2019-09-18 2020-04-28 佛山市中研非晶科技股份有限公司 Powder coating method, finished product powder and finished product magnetic powder core preparation method
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CN111068992A (en) * 2019-09-18 2020-04-28 佛山市中研非晶科技股份有限公司 Powder coating method, finished product powder and finished product magnetic powder core preparation method
CN110935881A (en) * 2019-12-30 2020-03-31 佛山市中研非晶科技股份有限公司 Amorphous nanocrystalline powder baking equipment and use its magnetic powder core production line
CN112908604A (en) * 2021-01-21 2021-06-04 广东省科学院材料与加工研究所 Iron-based amorphous composite magnetic powder core and preparation method thereof
CN112908604B (en) * 2021-01-21 2022-07-12 广东省科学院材料与加工研究所 Iron-based amorphous composite magnetic powder core and preparation method thereof

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