CN110136923A - A kind of amorphous nano-crystalline magnet ring of epoxy powder coating and preparation method thereof - Google Patents
A kind of amorphous nano-crystalline magnet ring of epoxy powder coating and preparation method thereof Download PDFInfo
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- CN110136923A CN110136923A CN201910472638.8A CN201910472638A CN110136923A CN 110136923 A CN110136923 A CN 110136923A CN 201910472638 A CN201910472638 A CN 201910472638A CN 110136923 A CN110136923 A CN 110136923A
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- 238000000576 coating method Methods 0.000 title claims abstract description 52
- 239000011248 coating agent Substances 0.000 title claims abstract description 49
- 239000000843 powder Substances 0.000 title claims abstract description 46
- 239000004593 Epoxy Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 238000005507 spraying Methods 0.000 claims abstract description 18
- 150000002118 epoxides Chemical class 0.000 claims abstract description 12
- 230000032683 aging Effects 0.000 claims abstract description 8
- 238000007711 solidification Methods 0.000 claims abstract description 8
- 230000008023 solidification Effects 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 238000013021 overheating Methods 0.000 claims abstract description 5
- 238000002425 crystallisation Methods 0.000 claims abstract description 4
- 230000008025 crystallization Effects 0.000 claims abstract description 4
- 238000010792 warming Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000003063 flame retardant Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- -1 Paris white Chemical compound 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000000137 annealing Methods 0.000 claims description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- 230000036760 body temperature Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 3
- LXBGSDVWAMZHDD-UHFFFAOYSA-N 2-methyl-1h-imidazole Chemical compound CC1=NC=CN1 LXBGSDVWAMZHDD-UHFFFAOYSA-N 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical group [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 3
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 3
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 230000003078 antioxidant effect Effects 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000005336 cracking Methods 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000049 pigment Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000011863 silicon-based powder Substances 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- ZCUJYXPAKHMBAZ-UHFFFAOYSA-N 2-phenyl-1h-imidazole Chemical compound C1=CNC(C=2C=CC=CC=2)=N1 ZCUJYXPAKHMBAZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000002518 antifoaming agent Substances 0.000 claims description 2
- 239000012752 auxiliary agent Substances 0.000 claims description 2
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 150000002460 imidazoles Chemical class 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000011056 performance test Methods 0.000 claims description 2
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 2
- QFFVPLLCYGOFPU-UHFFFAOYSA-N barium chromate Chemical compound [Ba+2].[O-][Cr]([O-])(=O)=O QFFVPLLCYGOFPU-UHFFFAOYSA-N 0.000 claims 1
- 238000011084 recovery Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000035699 permeability Effects 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000002178 crystalline material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
- H01F41/0226—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) from amorphous ribbons
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Hard Magnetic Materials (AREA)
- Soft Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
The embodiment of the invention discloses a kind of preparation methods of the amorphous nano-crystalline magnet ring of epoxy powder coating, which comprises amorphous nanocrystalline strip is coiled into Nanocrystalline core；The Nanocrystalline core is placed in vacuum crystallization furnace and is heat-treated；Nanocrystalline core after Overheating Treatment is carried out spraying solidification with epoxide powder coating；Aging process is carried out, the amorphous nano-crystalline magnet ring of the epoxy powder coating is obtained.Shortcoming of this method to avoid Nanocrystalline core insulation processing in the prior art, to obtain high-insulativity, high magnetic permeability, tension and resistance to falling property, and the product size reduced, while preparation process meets environmental protection standard.The embodiment of the invention also provides the amorphous nano-crystalline magnet rings that the preparation method obtains.
Description
Technical field
The present invention relates to ring inductance technical fields, and in particular to a kind of amorphous nano-crystalline magnet ring of epoxy powder coating and
Preparation method.
Background technique
With the trend that technology develops, the common mode inductance device in electronic component becomes to directions such as miniaturization, lightweights
Leather, but existing technique is difficult to obtain balance: the big inductance of inductance, volume between the miniaturization and inductance of inductance
Corresponding also larger, the small inductance of inductance, volume is corresponding also smaller, is difficult to accomplish that inductance is big, volume is smaller.
Non-crystalline material is a kind of new function material, is primary about 30 microns of thickness of the formation using the technique for preparing amorphous
Strip.When melting molten steel use advanced chilling rapid solidification, liquid metal is rapidly cooled to form with a thickness of 0.03mm
The solid strip of left and right obtains atomic arrangement group and closes with shortrange order, and the amorphous structure feature of longrange disorder feature does not have
The crystal structure of standby conventional alloys material, here it is amorphous alloys.It is cooled fast to the metal that thickness is only tens microns in this way
When strip, atomic disorder arrangement architecture possessed by molten steel is just " frozen ", and forms so-called " amorphous alloy ".It is nanocrystalline
Then refer to metal sheet band on the basis of decrystallized using appropriate heat treatment, referred to as " nanometer crystal alloy ".
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.
Existing Nanocrystalline core insulation processing is the protection of PVC plastic material shell, and volume is big, and poor heat resistance, product also holds
It is easy to aging.Also part liquid paint sprays substitution plastic casing, painting workshop environment is poor, and smell weight has VOCS volatile matter,
There are many environmental protection limitations.
Summary of the invention
A kind of preparation method of the amorphous nano-crystalline magnet ring for being designed to provide epoxy powder coating of the embodiment of the present invention,
With the shortcoming to avoid Nanocrystalline core insulation processing in the prior art, to obtain high-insulativity, high magnetic permeability, tension
With resistance to falling property, and the product size reduced, while preparation process meets environmental protection standard.The embodiment of the invention also provides described
The amorphous nano-crystalline magnet ring that preparation method obtains.
To achieve the above object, the embodiment of the present invention provides a kind of preparation of the amorphous nano-crystalline magnet ring of epoxy powder coating
Method, the preparation method include the following steps:
(1) amorphous nanocrystalline strip is coiled into Nanocrystalline core；
(2) Nanocrystalline core is placed in vacuum crystallization furnace and is heat-treated；
(3) Nanocrystalline core after Overheating Treatment is carried out spraying solidification with epoxide powder coating；
(4) aging process is carried out, the amorphous nano-crystalline magnet ring of the epoxy powder coating is obtained,
Wherein, the heat treatment in step (2) includes following heat treatment step:
1. passing through 30 minutes in-furnace temperature from room temperature to 300 DEG C；
2. being warming up to 480 DEG C with 20 minutes after 300 DEG C keep the temperature 30 minutes；
3. keeping the temperature after sixty minutes at 480 DEG C, 510 DEG C were warming up to 30 minutes；
4. being warming up to 560 DEG C with 20 minutes after 510 DEG C keep the temperature 80 minutes；
5. being cooled to 520 DEG C with 10 minutes after 560 DEG C keep the temperature 140 minutes；
6. keeping the temperature after sixty minutes at 520 DEG C, bonnet high wind is exited furnace body temperature dramatic decrease to 350 DEG C；
7. use high wind rapid cooling to room temperature again the Nanocrystalline core taken out out of furnace,
Aging process in step (4) includes the following steps: that the amorphous nano-crystalline magnet ring by the epoxy powder coating is put
To having warmed up to baking oven inside holding 60 minutes of 120 DEG C, it is put into after the completion of heat preservation outside baking oven and naturally cools to room temperature.
Wherein, heat treatment step 7. in, the Nanocrystalline core taken out in furnace can be placed on cooling frame, then with high wind urgency
Speed is cooled to room temperature such as room temperature.
Further, the heat treatment condition of step (2) includes Nanocrystalline core being placed on effective samming of vacuum annealing furnace
In area, fire door is locked, the power supply for heating and vacuumizing is opened, opens the cooling water for cooling down the sealing ring of fire door, make
Vacuum degree remains less than -0.1Mpa and comes out of the stove to Nanocrystalline core in furnace.
Further, the epoxide powder coating contains epoxy resin, and heatproof reaches 155 DEG C, flame retardant rating UL94_
V0。
In one embodiment, the epoxide powder coating includes following component based on parts by weight:
Wherein, the inorganic fillings are one or more mixing of silicon powder, Paris white, talcum powder, barium sulfate
Object, granularity are 400-3500 mesh.The curing accelerator is one of imidazoles, 2-methylimidazole or 2- phenylimidazole or a variety of
Mixture.The fire retardant is aluminium hydroxide, magnesium hydroxide or zinc borate.The pigment is iron oxide red, iron oxide yellow, permanent bordeaux, forever
Gu Huang, phthalocyanine blue, phthalocyanine green, titanium dioxide or insulation carbon black.The auxiliary agent is levelling agent, optical brightener, defoaming agent, charge regulating agent
And/or antioxidant.
In one embodiment, the volume mean diameter D50 of the epoxide powder coating is between 40 μm -60 μm.
Further, the size of the Nanocrystalline core are as follows: outer diameter 6-200mm, internal diameter 3-190mm, height 3-60mm.
In one embodiment, the size of the Nanocrystalline core are as follows: outer diameter 28mm, internal diameter 18mm, height 10mm.
Further, step (1) the following steps are included: on amorphous sutomatic winding machine install core mold, pass through core
Amorphous nanocrystalline strip is coiled into the Nanocrystalline core with desired size by mold；It detects the elasticity of Nanocrystalline core: passing through
External force is from the direction of the bandwidth perpendicular to Nanocrystalline core Nanocrystalline core compressive strain, after releasing external force, the stress side of magnet ring
To height dimension can restore to more than not 80% before by external force.
Further, the spraying in step (3) solidifies the following steps are included: using electrostatic powder coating process, by magnet ring
Place on plate, put 200 DEG C preheating 10-12 minutes in continuous tunnel furnace into, mechanical clamping machine grabs plate to spraying cabinet, reciprocating engine into
The automatic spraying of row, spray-on coating control between 0.2-0.3mm, send into continuous tunnel furnace 180 DEG C of baking 10-12 points again after spraying is good
Clock；Magnet ring turn-over is repeated into spraying solidification by above-mentioned step.
In one embodiment, the plate is aluminium alloy plate or stainless steel plate.
Further, the preparation method of the amorphous nano-crystalline magnet ring of the epoxy powder coating is further comprising the steps of:
(5) the amorphous nano-crystalline magnet ring by the epoxy powder coating makes a service test, under the performance test includes
Column step:
Nanocrystalline core 1.6mm copper wire winding 10 is enclosed, by the deformation extent of the intact degree of coating and magnet ring come
Measure the tensile strength of the Nanocrystalline core of epoxy powder coating；
Nanocrystalline core is subjected to 1 meter of free fall test, ring is measured by falling off with cracking degree for powder coating
The impact resistance of the amorphous nano-crystalline magnet ring of oxygen powder coating.
The other side of the embodiment of the present invention further relates to the epoxy powder coating obtained by any of the above-described preparation method
Amorphous nano-crystalline magnet ring.
Nanocrystalline strip is coiled into desired size by the technical solution of the embodiment of the present invention, and (such as outer diameter is 28mm, and internal diameter is
18mm, the highly Nanocrystalline core for 10mm)；The Nanocrystalline core is placed in vacuum annealing furnace and is heat-treated, is heat-treated
Step is specifically: passing through 30 minutes in-furnace temperature from room temperature to 300 DEG C, after 300 DEG C keep the temperature 30 minutes, with 20 minutes
480 DEG C are warming up to, is kept the temperature after sixty minutes at 480 DEG C, was warming up to 510 DEG C with 30 minutes, after 510 DEG C keep the temperature 80 minutes, with 10
Minute is warming up to 560 DEG C, after 560 DEG C keep the temperature 140 minutes, is cooled to 520 DEG C with 10 minutes, keeps the temperature at 520 DEG C after sixty minutes,
Bonnet high wind is exited furnace body temperature dramatic decrease to 350 DEG C, firedoor handle Nanocrystalline core is opened and takes out, what is taken out out of furnace
Nanocrystalline core is placed on cooling frame again with high wind rapid cooling to room temperature；The Nanocrystalline core epoxy after Overheating Treatment
Powdery paints carries out spraying solidification and aging, obtains the amorphous nano-crystalline magnet ring of a complete epoxy powder coating, thus real
Now the ring inductance amount is big, and size is small, the high purpose of stability.
The Nanocrystalline core that the technical solution of the embodiment of the present invention obtains has the advantages that
1, there is high-insulativity；Pressure resistance is up to 3500V；
2, there is high magnetic permeability about 80000 or more, it is possible to reduce the number of turns of winding；
3, having good frequency characteristic is 50Hz-1MHz；
4, there are about 580 DEG C of high-curie temperature, the long-term heatproof of coating is up to 155 DEG C；
5, have tension, it is resistance to fall characteristic, maximum can be born around 2.0mm line footpath copper wire；
6, product size is reduced, coiling cost is reduced；
7, can be in -45 DEG C~125 DEG C temperature ranges with excellent temperature characterisitic, inductance is held essentially constant.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated
Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.
Fig. 1 is the structural schematic diagram of the amorphous nano-crystalline magnet ring of epoxy powder coating provided in an embodiment of the present invention.
Wherein appended drawing reference are as follows:
1, Nanocrystalline core；2, epoxy powder solidify coating.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Embodiment 1
The preparation method of the amorphous nano-crystalline magnet ring of the epoxy powder coating of the present embodiment, walks referring to Fig. 1, including as follows
It is rapid:
Step 1: the core mold for being 18mm in amorphous sutomatic winding machine installation diameter, the iron based nano crystal of 10mm long
Band be wound into an outer diameter be 28mm, internal diameter 18mm, be highly 10mm Nanocrystalline core 1.
Step 2: the Nanocrystalline core 1 is placed in vacuum annealing furnace and is heat-treated: Nanocrystalline core 1 is placed on very
In the effective uniform temperature zone of empty crystallization furnace, fire door is locked, opens the power supply for heating and vacuumizing, is opened for cooling down fire door
Sealing ring cooling water, vacuum degree remains less than -0.1Mpa and comes out of the stove to Nanocrystalline core 1 in furnace；Wherein heating and cooling system
Degree includes:
1. passing through 30 minutes in-furnace temperature from room temperature to 300 DEG C；
2. being warming up to 480 DEG C with 20 minutes after 300 DEG C keep the temperature 30 minutes；
3. keeping the temperature after sixty minutes at 480 DEG C, 510 DEG C were warming up to 30 minutes；
4. being warming up to 560 DEG C with 20 minutes after 510 DEG C keep the temperature 80 minutes；
5. being cooled to 520 DEG C with 10 minutes after 560 DEG C keep the temperature 140 minutes；
6. keeping the temperature after sixty minutes at 520 DEG C, bonnet high wind is exited furnace body temperature dramatic decrease to 350 DEG C；
7. using high wind rapid cooling to room temperature again the Nanocrystalline core taken out out of furnace.
Step 3: the Nanocrystalline core 1 after Overheating Treatment is carried out spraying solidification with epoxide powder coating: individually receiving
The brilliant magnet ring 1 of rice sprays epoxy powder, on 1 placing aluminium alloy plate of magnet ring, will put preheating 10-12 minutes of 200 DEG C of continuous tunnel furnace, machine into
Tool clamping machine grabs plate to spraying cabinet, and reciprocating engine is sprayed automatically, and spray-on coating controls between 0.2-0.3mm；It coats
Product is sent to baking 10-12 minutes of 180 DEG C of continuous tunnel furnace again afterwards, magnet ring turn-over is weighed again by the set temperature of first time and time
Multiple spraying, thus obtains epoxy powder solidify coating 2 on 1 body surface of Nanocrystalline core.
Step 4: the Nanocrystalline core sprayed is put into the progress in baking oven inside holding 60 minutes having warmed up to 120 DEG C again
Aging process is put into outside baking oven after the completion of heat preservation and naturally cools to room temperature.
Step 5: the 1.6mm copper wire winding 10 of Nanocrystalline core after spraying is enclosed, and coating is intact, and magnet ring does not deform,
Tensile strength is measured with this；And the product after spraying is done into 1 meter of free fall test, powder coating, which cannot have, to fall off, and cracking is existing
As that can be detected with pressure tester, measure impact resistance.
Embodiment 2
The present embodiment on the basis of embodiment 1, further, used in epoxide powder coating based on parts by weight
Including following component:
Wherein, the inorganic fillings are the mixture of silicon powder, Paris white and talcum powder, granularity 400-3500
Mesh；The curing accelerator is 2-methylimidazole；The fire retardant is aluminium hydroxide；The pigment is insulation carbon black.It is described to help
Agent is levelling agent and antioxidant.The volume mean diameter D50 of the epoxide powder coating is between 40 μm -60 μm, heatproof
Reach 155 DEG C, flame retardant rating UL94_V0.
The embodiment of the present invention by above method can be made 1k/0.25v inductance greater than 40 μ H, 150k/0.25v inductance it is big
It is greater than 2.0 μ H in 10 μ H, 1M/0.25v inductance, outer dimension is less than 30mm, and epoxy powder coating of the thickness less than 12mm is received
The brilliant magnet ring of rice, as shown in Figure 1, it can be achieved that inductance is big, size is small, the stable purpose of performance.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (10)
1. a kind of preparation method of the amorphous nano-crystalline magnet ring of epoxy powder coating, which is characterized in that the preparation method includes
The following steps:
(1) amorphous nanocrystalline strip is coiled into Nanocrystalline core；
(2) Nanocrystalline core is placed in vacuum crystallization furnace and is heat-treated；
(3) Nanocrystalline core after Overheating Treatment is carried out spraying solidification with epoxide powder coating；
(4) aging process is carried out, the amorphous nano-crystalline magnet ring of the epoxy powder coating is obtained,
Wherein, the heat treatment in step (2) includes following heat treatment step:
1. passing through 30 minutes in-furnace temperature from room temperature to 300 DEG C；
2. being warming up to 480 DEG C with 20 minutes after 300 DEG C keep the temperature 30 minutes；
3. keeping the temperature after sixty minutes at 480 DEG C, 510 DEG C were warming up to 30 minutes；
4. being warming up to 560 DEG C with 20 minutes after 510 DEG C keep the temperature 80 minutes；
5. being cooled to 520 DEG C with 10 minutes after 560 DEG C keep the temperature 140 minutes；
6. keeping the temperature after sixty minutes at 520 DEG C, bonnet high wind is exited furnace body temperature dramatic decrease to 350 DEG C；
7. use high wind rapid cooling to room temperature again the Nanocrystalline core taken out out of furnace,
Aging process in step (4) includes the following steps: that the amorphous nano-crystalline magnet ring by the epoxy powder coating is put into
It is warming up to 120 DEG C of baking oven inside holding 60 minutes, is put into after the completion of heat preservation outside baking oven and naturally cools to room temperature.
2. preparation method according to claim 1, which is characterized in that the heat treatment condition of step (2) includes, nanocrystalline
Magnet ring is placed in effective uniform temperature zone of vacuum annealing furnace, locks fire door, opens the power supply for heating and vacuumizing, and unlatching is used for
The cooling water of the sealing ring of cooling fire door makes in furnace vacuum degree remain less than -0.1Mpa and comes out of the stove to Nanocrystalline core.
3. preparation method according to claim 1, which is characterized in that the epoxide powder coating contains epoxy resin, resistance to
Temperature reaches 155 DEG C, flame retardant rating UL94_V0.
4. preparation method according to claim 3, which is characterized in that the epoxide powder coating includes based on parts by weight
Following component:
Wherein, the inorganic fillings are one or more mixtures of silicon powder, Paris white, talcum powder, barium sulfate, grain
Degree is 400-3500 mesh；The curing accelerator is one of imidazoles, 2-methylimidazole or 2- phenylimidazole or a variety of mixed
Close object；The fire retardant is aluminium hydroxide, magnesium hydroxide or zinc borate；The pigment be iron oxide red, iron oxide yellow, permanent bordeaux, permanent yellow,
Phthalocyanine blue, phthalocyanine green, titanium dioxide or insulation carbon black；The auxiliary agent be levelling agent, optical brightener, defoaming agent, charge regulating agent and/or
Antioxidant.
5. the preparation method according to claim 4, which is characterized in that the volume mean diameter of the epoxide powder coating
D50 is between 40 μm -60 μm.
6. preparation method according to claim 1, which is characterized in that the size of the Nanocrystalline core are as follows: outer diameter 6-
200mm, internal diameter 3-190mm, height 3-60mm.
7. preparation method according to claim 1, which is characterized in that step (1) the following steps are included: roll up automatically in amorphous
Core mold is installed on machine, amorphous nanocrystalline strip is coiled by core mold by the Nanocrystalline core with desired size；
Detect the elasticity of Nanocrystalline core: by external force from the direction of the bandwidth perpendicular to Nanocrystalline core Nanocrystalline core buckling
Shape, after releasing external force, the height dimension recovery of the Impact direction of magnet ring to more than not 80% before by external force.
8. preparation method according to claim 7, which is characterized in that spraying in step (3) solidification the following steps are included:
Using electrostatic powder coating process, magnet ring is placed on plate, puts 200 DEG C preheating 10-12 minutes, mechanical material folding in continuous tunnel furnace into
Machine grabs plate to spraying cabinet, and reciprocating engine is sprayed automatically, and spray-on coating controls between 0.2-0.3mm, after spraying is good again
180 DEG C of bakings 10-12 minutes are sent into continuous tunnel furnace；Magnet ring turn-over is repeated into spraying solidification by above-mentioned step.
9. preparation method according to claim 1, which is characterized in that the amorphous nano-crystalline magnet ring of the epoxy powder coating
Preparation method it is further comprising the steps of:
(5) the amorphous nano-crystalline magnet ring by the epoxy powder coating makes a service test, and the performance test includes following step
It is rapid:
Nanocrystalline core 1.6mm copper wire winding 10 is enclosed, is measured by the deformation extent of the intact degree of coating and magnet ring
The tensile strength of the Nanocrystalline core of epoxy powder coating；
Nanocrystalline core is subjected to 1 meter of free fall test, epoxy powder is measured by falling off with cracking degree for powder coating
The impact resistance of the amorphous nano-crystalline magnet ring of last coating.
10. the amorphous nano-crystalline of preparation method epoxy powder coating obtained according to claim 1 to 9
Magnet ring.
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| CN116532335A (en) * | 2023-05-05 | 2023-08-04 | 深圳市高图先进材料技术有限公司 | Preparation method of low-stress composite coating of coiled iron core, coiled iron core and application |
| CN117637328A (en) * | 2023-11-27 | 2024-03-01 | 佛山市明富兴金属材料有限公司 | Preparation process of epoxy coating amorphous nanocrystalline magnetic core and magnetic core prepared by preparation process |
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