CN106169362A - A kind of common mode inductance applying high stability ultracrystalline magnetic core and manufacture method thereof - Google Patents
A kind of common mode inductance applying high stability ultracrystalline magnetic core and manufacture method thereof Download PDFInfo
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- CN106169362A CN106169362A CN201610713355.4A CN201610713355A CN106169362A CN 106169362 A CN106169362 A CN 106169362A CN 201610713355 A CN201610713355 A CN 201610713355A CN 106169362 A CN106169362 A CN 106169362A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 22
- 239000000919 ceramic Substances 0.000 claims abstract description 20
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 5
- 239000003365 glass fiber Substances 0.000 claims abstract description 4
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 4
- 239000004945 silicone rubber Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 239000012774 insulation material Substances 0.000 claims description 16
- 239000003822 epoxy resin Substances 0.000 claims description 15
- 229920000647 polyepoxide Polymers 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 238000004513 sizing Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 239000010955 niobium Substances 0.000 claims description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 230000003472 neutralizing effect Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 4
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- 239000011162 core material Substances 0.000 description 35
- 230000035699 permeability Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 239000000411 inducer Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical class [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 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
- 230000007812 deficiency Effects 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000036413 temperature sense Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- H01F1/14766—Fe-Si based alloys
-
- 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
- H01F17/045—Fixed inductances of the signal type with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/25—Magnetic cores made from strips or ribbons
-
- 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
- H01F41/005—Impregnating or encapsulating
-
- 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
-
- 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
- H01F41/04—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 for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/127—Encapsulating or impregnating
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The invention discloses a kind of common mode inductance applying high stability ultracrystalline magnetic core and manufacture method thereof, by controlling the vacuum electroslag remelting of ultracrystalline magnetic core, single roller Quench, molding, ultra micro crystallization, destressing process and obtain the ultracrystalline magnetic core that stability is high, further through the stability of common mode inductance using the excellent aluminum-nitride-based ceramic skeleton of electromagnetic performance, fully closed aluminium alloy radome, silicone rubber to improve the present invention with the mode of the glass fibre gap fillers that 9:1 mixes by weight；The common mode inductance stability applying high stability ultracrystalline magnetic core of the present invention is high, excellent radiation performance good to temperature-insensitive, length in service life, electromagnetic wave shielding.
Description
Technical field
The present invention relates to field of electrical components, particularly relate to a kind of common mode inductance applying high stability ultracrystalline magnetic core
And manufacture method.
Background technology
Inducer (Inductor) is the element that electric energy can be converted into magnetic energy and store.The structure of common mode inductance
It is similar to transformator, but only one of which winding (6).Common mode inductance has certain inductance, and it only hinders the change of electric current.If
Common mode inductance is not when having electric current to pass through, and during circuit ON, it will attempt to hinder electric current to flow through it；If common mode inductance
When there being electric current to pass through, when circuit disconnects, it will attempt to maintain electric current constant.Common mode inductance is also known as choke, reactance
Device, dynamic reactor.
Superfine crystal material has the highest permeability, saturation induction density and relatively low coercivity and resistivity, mainly
The transformator small-sized, highly sensitive of use, amplifier, relay, choke coil, magnetic recording head, magnetic shield in low-intensity magnetic field
Deng, it is one of best core material of stability.
In the Patents the most applied for, patent " a kind of high-temperature stability inductance " (application number:
201610011573.3, publication date: 2016-04-06), disclose the composition structure of a kind of high-temperature stability inductance, but it is not
Material essence is processed and improves, therefore the foundation is weak of its temperature stability, can only be by complicated structure and heat radiation
Ensureing its temperature stability, but its framework material used is plastics, thermal coefficient of expansion is relatively big, and temperature stability is poor, uses
Magnetic core be N48, be a kind of neodymium iron boron magnetic core, the advantage of this magnetic core is that cost performance is high, has good mechanical property, deficiency
Place is that Curie point is low, and temperature stability is poor, and is prone to dusting corrosion, and therefore its temperature stability is the poorest, service life
Shorter, simultaneously because its permeability is much smaller than ultracrystallite, the therefore inducer of same performance, its volume will be much larger than using ultra micro
The inducer of brilliant magnetic core (3)；Due to the middle aluminium alloy semi-closed structure used, although have certain electromagnetic shielding capability, but
For aluminium alloy full-closed structure, its electromagnetic shielding capability is more weak, electromagnetism less stable；And due in this invention only
Having fraction aluminium alloy to be connected with functional area, rate of heat dispation is relatively low.
Summary of the invention
For solving drawbacks described above present in prior art, it is desirable to provide a kind of stability is high, unwise to temperature
Sense, length in service life, electromagnetic wave shielding are good, the common mode inductance applying high stability ultracrystalline magnetic core of excellent radiation performance and
Its manufacture method.
To achieve these goals, the present invention is by the following technical solutions: one applies high stability ultracrystalline magnetic core
Common mode inductance manufacture method, comprise the following steps:
1) selection of each parts and preparation
1. skeleton selects annular aluminum-nitride-based ceramic skeleton, and this aluminum-nitride-based pottery selection standard is: specific insulation >=2 ×
1013Ω cm, dielectric strength >=750kV/cm, thermal conductivity >=25W/m K, bending strength >=400Mpa, young's modulus >=
320Gpa, fracture toughness >=25Mpa；
2. specific ultracrystalline magnetic core raw material selected by magnetic core, including the component of following weight portion: ingot iron 64-75 part, electricity
Solve copper 0.8-1.2 part, pure niobium 2.9-3.1 part, silicon metal 12.5-13.2 part, FeB 9.3-9.8 part；
3. radome uses aluminium alloy to make, and uses full-closed structure；
4. encapsulating material uses epoxy resin；
5. winding uses standard winding copper cash；
6. heat-conducting insulation material uses the granular mixture that silicone rubber mixes by weight 9:1 with glass fibre；
2) processed of magnetic core
1. by 1) in the ultracrystalline magnetic core raw material that 2. prepares of step carry out melting by vacuum induction electroslag furnace, smelting temperature is
Original material starts to melt follow-up temperature of continuing rising 100 DEG C-110 DEG C, and uniform stirring is also incubated 20min-30min, it is thus achieved that stand-by alloy
Liquid；
2. stand-by aluminium alloy step 1. obtained makes thickness 15-25 by being configured with the copper list roller chilling facility of puff prot
The amorphous alloy strip steel rolled stock of μm, in chilling process, puff prot sprays enough nitrogen, nitrogen with 8 bar-10bar pressure all the time
Injection direction is perpendicular to roll surface, presents horizontal fan-shaped spray, it is thus achieved that original amorphous alloy strip steel rolled stock；
3. original amorphous alloy strip steel rolled stock step 2. obtained turns to circle or square by coiling plug, it is thus achieved that deformation
Amorphous alloy strip steel rolled stock；
4. deforming amorphous alloy strip steel rolled stock clamping step 3. obtained is fixing in high temperature resistant shape-setting clamp, it is thus achieved that sizing amorphous
State alloy strip steel rolled stock；
5. sizing amorphous alloy strip steel rolled stock step 4. obtained puts into the heat-treatment furnace with three thermocouple, is passed through enough nitrogen
Protection, three thermocouples are respectively that temperature control is even, furnace temperature even summation overtemperature is even, and temperature control is even directly to be connect with amorphous alloy strip steel rolled stock of shaping
Touching, furnace temperature even summation overtemperature is effective warm area cavity in being occasionally positioned over stove, starts to warm up, extremely with the heating rate of no more than 3 DEG C/min
Insulation, temperature retention time 30min-40min, then furnace cooling is started when temperature control idol temperature sensor is warming up to 540 DEG C-545 DEG C
To room temperature, remove high temperature resistant shape-setting clamp, i.e. obtain required pending ultracrystalline magnetic core；
3) assembling of common mode inductance
1. ultracrystalline magnetic core is positioned in aluminum-nitride-based ceramic skeleton, uses epoxy resin to fix；
2. copper cash is wrapped on aluminum-nitride-based ceramic skeleton by standard canoe；
3. use aluminium alloy radome to be encapsulated by whole common mode inductance, in gap, during encapsulation, fill full 1) in step 6. prepare
Graininess heat-conducting insulation material；Then use epoxy resin to seal, i.e. obtain pending common mode inductance；
4) stabilizing treatment of common mode inductance
1. by 3) in the pending common mode inductance that 3. obtains of step be positioned in household freezer, temperature not higher than-70 DEG C, insulation
20min-30min, it is thus achieved that cold treatment common mode inductance；
2., after 1. step completes, cold treatment common mode inductance step 1. obtained is put at room temperature, returns back to room temperature to its temperature,
It is then placed in baking oven, rises to 100 DEG C-105 DEG C with the heating rate of not higher than 2 DEG C/min, be incubated 25min-30min, it is thus achieved that
Thermal cycle common mode inductance；
3. thermal cycle common mode inductance step 2. obtained is put at room temperature, returns back to room temperature to its temperature；
4. 1. ~ 3. operation twice is repeated, needed for i.e. obtaining, applies the common mode inductance of high stability ultracrystalline magnetic core.
The common mode inductance applying high stability ultracrystalline magnetic core produced according to above-mentioned manufacture method, wherein: application
Special ultracrystalline magnetic core, apply specific ceramic skeleton, apply aluminium alloy totally enclosed type radome, apply heat conduction
Insulant；Ultracrystalline magnetic core by epoxy resin sealing in ceramic skeleton, winding surface and winding and ceramic skeleton gap
In be filled with heat-conducting insulation material, be also packaged with epoxy resin outside heat-conducting insulation material；Whole neutralization is become by aluminium alloy radome
In depressor part in addition to radome is sleeved on, use full-enclosed structure.
Compared with prior art, the invention have the advantages that and selected the good ultracrystalline magnetic core of stability, and right
Ultracrystalline magnetic core carried out impacting-the repeatedly circular treatment of destressing-deformation-school shape-destressing, and also destressing temperature is the highest
In Curie temperature, the ultracrystalline magnetic core good stability of the dimension of therefore final acquisition, remaining mixed and disorderly magnetic flux are little, to variations in temperature not
Sensitive；Owing to Superfine crystal material has the highest permeability, saturation induction density and relatively low coercivity and resistivity, therefore
The electromagnetic performance of the present invention is excellent；The saturated magnetic strength of ultracrystalline magnetic core used due to the present invention is not less than 1.5T, initial permeability
It is not less than (1 × 105), Hc not higher than (0.30A/M), not higher than (20W/kg), resistivity is the lowest for the high-frequency loss under high magnetic strength
In 80 μ Ω/cm, after transverse magnetic field processes, can obtain being not less than the Br value of 1000Gs so that the basic property of the present invention
The most very well；Owing to skeleton uses aluminum-nitride-based pottery to make, comprehensive organ's function admirable of this aluminum-nitride-based pottery, and thermal expansion
Coefficient is low, more difficult to aging, rotten, uses aluminium alloy full-closed structure in addition, uses the common mode inductance of the present invention to be invaded by the external world
Evil is little, and therefore service life is long；Owing to using aluminium alloy full-closed structure, therefore electromagnetic wave shielding is good；Again due to this aluminum
It is filled with High-heat-conductiviinsulation insulation material between alloy structure and heating part, and covers whole common mode inductance, therefore this common mode electricity
The excellent radiation performance of sense.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention
In figure: radome 1, ceramic skeleton 2, ultracrystalline magnetic core 3, heat-conducting insulation material 4, encapsulating material 5, winding 6.
Detailed description of the invention
Embodiment 1:
A kind of common mode inductance applying high stability ultracrystalline magnetic core, apply special ultracrystalline magnetic core 3, apply specific
Ceramic skeleton 2, apply aluminium alloy totally enclosed type radome 1, apply heat-conducting insulation material 4；Ultracrystalline magnetic core 3 passes through ring
Epoxy resins sealing, in ceramic skeleton 2, is filled with heat-conducting insulation material 4 in winding 6 surface and winding 6 and ceramic skeleton 2 gap,
Heat-conducting insulation material 4 is outer is also packaged with epoxy resin；Aluminium alloy radome 1 is by whole neutralizing transformer portion in addition to radome 1
Divide in being sleeved on, use full-enclosed structure.
This applies the common mode inductance manufacture method of high stability ultracrystalline magnetic core, comprises the following steps:
1) selection of each parts and preparation
1. skeleton selects annular aluminum-nitride-based ceramic skeleton 2, and this aluminum-nitride-based pottery selection standard is: specific insulation >=2 ×
1013Ω cm, dielectric strength >=750kV/cm, thermal conductivity >=25W/m K, bending strength >=400Mpa, young's modulus >=
320Gpa, fracture toughness >=25Mpa；
2. specific ultracrystalline magnetic core 3 raw material selected by magnetic core, including the component of following weight portion: ingot iron 64-75 part, electricity
Solve copper 0.8-1.2 part, pure niobium 2.9-3.1 part, silicon metal 12.5-13.2 part, FeB 9.3-9.8 part；
3. radome 1 uses aluminium alloy to make, and uses full-closed structure；
4. encapsulating material 5 uses epoxy resin；
5. winding 6 uses standard winding 6 to use copper cash；
6. heat-conducting insulation material 4 uses the granular mixture that silicone rubber mixes by weight 9:1 with glass fibre；
2) processed of magnetic core
1. by 1) in ultracrystalline magnetic core 3 raw material that 2. prepares of step carry out melting, smelting temperature by vacuum induction electroslag furnace
Starting to melt follow-up temperature of continuing rising 100 DEG C-110 DEG C for original material, uniform stirring is also incubated 20min-30min, it is thus achieved that stand-by conjunction
Gold liquid；
2. stand-by aluminium alloy step 1. obtained makes thickness 15-25 by being configured with the copper list roller chilling facility of puff prot
The amorphous alloy strip steel rolled stock of μm, in chilling process, puff prot sprays enough nitrogen, nitrogen with 8 bar-10bar pressure all the time
Injection direction is perpendicular to roll surface, presents horizontal fan-shaped spray, it is thus achieved that original amorphous alloy strip steel rolled stock；
3. original amorphous alloy strip steel rolled stock step 2. obtained turns to circle or square by coiling plug, it is thus achieved that deformation
Amorphous alloy strip steel rolled stock；
4. deforming amorphous alloy strip steel rolled stock clamping step 3. obtained is fixing in high temperature resistant shape-setting clamp, it is thus achieved that sizing amorphous
State alloy strip steel rolled stock；
5. sizing amorphous alloy strip steel rolled stock step 4. obtained puts into the heat-treatment furnace with three thermocouple, is passed through enough nitrogen
Protection, three thermocouples are respectively that temperature control is even, furnace temperature even summation overtemperature is even, and temperature control is even directly to be connect with amorphous alloy strip steel rolled stock of shaping
Touching, furnace temperature even summation overtemperature is effective warm area cavity in being occasionally positioned over stove, starts to warm up, extremely with the heating rate of no more than 3 DEG C/min
Insulation, temperature retention time 30min-40min, then furnace cooling is started when temperature control idol temperature sensor is warming up to 540 DEG C-545 DEG C
To room temperature, remove high temperature resistant shape-setting clamp, i.e. obtain required pending ultracrystalline magnetic core 3；
3) assembling of common mode inductance
1. ultracrystalline magnetic core 3 is positioned in aluminum-nitride-based ceramic skeleton 2, uses epoxy resin to fix；
2. copper cash is wrapped on aluminum-nitride-based ceramic skeleton 2 by standard canoe；
3. use aluminium alloy radome 1 to be encapsulated by whole common mode inductance, in gap, during encapsulation, fill full 1) in step 6. prepare
Graininess heat-conducting insulation material 4；Then use epoxy resin to seal, i.e. obtain pending common mode inductance；
4) stabilizing treatment of common mode inductance
1. by 3) in the pending common mode inductance that 3. obtains of step be positioned in household freezer, temperature not higher than-70 DEG C, insulation
20min-30min, it is thus achieved that cold treatment common mode inductance；
2., after 1. step completes, cold treatment common mode inductance step 1. obtained is put at room temperature, returns back to room temperature to its temperature,
It is then placed in baking oven, rises to 100 DEG C-105 DEG C with the heating rate of not higher than 2 DEG C/min, be incubated 25min-30min, it is thus achieved that
Thermal cycle common mode inductance；
3. thermal cycle common mode inductance step 2. obtained is put at room temperature, returns back to room temperature to its temperature；
4. 1. ~ 3. operation twice is repeated, needed for i.e. obtaining, applies the common mode inductance of high stability ultracrystalline magnetic core 3.
Described above to the disclosed embodiments, only for making professional and technical personnel in the field be capable of or using this
Invention.Multiple amendment to these embodiments will be apparent from for those skilled in the art, herein institute
The General Principle of definition can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore,
The present invention is not intended to be limited to the embodiments shown herein, and is to fit to special with principles disclosed herein and novelty
The widest scope that point is consistent.
Claims (2)
1. the common mode inductance manufacture method applying high stability ultracrystalline magnetic core, it is characterised in that comprise the following steps:
1) selection of each parts and preparation
1. skeleton selects annular aluminum-nitride-based ceramic skeleton (2)；
2. specific ultracrystalline magnetic core (3) raw material selected by magnetic core, including the component of following weight portion: ingot iron 64-75 part,
Cathode copper 0.8-1.2 part, pure niobium 2.9-3.1 part, silicon metal 12.5-13.2 part, FeB 9.3-9.8 part；
3. radome (1) uses aluminium alloy to make, and uses full-closed structure；
4. encapsulating material (5) uses epoxy resin；
5. winding (6) uses standard winding (6) to use copper cash；
6. heat-conducting insulation material (4) uses the granular mixture that silicone rubber mixes by weight 9:1 with glass fibre；
2) processed of magnetic core
1. by 1) in ultracrystalline magnetic core (3) raw material that 2. prepares of step carry out melting, smelting temperature by vacuum induction electroslag furnace
Degree starts to melt follow-up temperature of continuing rising 100 DEG C-110 DEG C for original material, and uniform stirring is also incubated 20min-30min, it is thus achieved that stand-by
Aluminium alloy；
2. stand-by aluminium alloy step 1. obtained makes thickness 15-25 by being configured with the copper list roller chilling facility of puff prot
The amorphous alloy strip steel rolled stock of μm, in chilling process, puff prot sprays enough nitrogen, nitrogen with 8 bar-10bar pressure all the time
Injection direction is perpendicular to roll surface, presents horizontal fan-shaped spray, it is thus achieved that original amorphous alloy strip steel rolled stock；
3. original amorphous alloy strip steel rolled stock step 2. obtained turns to circle or square by coiling plug, it is thus achieved that deformation
Amorphous alloy strip steel rolled stock；
4. deforming amorphous alloy strip steel rolled stock clamping step 3. obtained is fixing in high temperature resistant shape-setting clamp, it is thus achieved that sizing amorphous
State alloy strip steel rolled stock；
5. sizing amorphous alloy strip steel rolled stock step 4. obtained puts into the heat-treatment furnace with three thermocouple, is passed through enough nitrogen
Protection, three thermocouples are respectively that temperature control is even, furnace temperature even summation overtemperature is even, and temperature control is even directly to be connect with amorphous alloy strip steel rolled stock of shaping
Touching, furnace temperature even summation overtemperature is effective warm area cavity in being occasionally positioned over stove, starts to warm up, extremely with the heating rate of no more than 3 DEG C/min
Insulation, temperature retention time 30min-40min, then furnace cooling is started when temperature control idol temperature sensor is warming up to 540 DEG C-545 DEG C
To room temperature, remove high temperature resistant shape-setting clamp, i.e. obtain required pending ultracrystalline magnetic core (3)；
3) assembling of common mode inductance
1. ultracrystalline magnetic core (3) is positioned in aluminum-nitride-based ceramic skeleton (2), uses epoxy resin to fix；
2. copper cash is wrapped on aluminum-nitride-based ceramic skeleton (2) by standard canoe；
3. use aluminium alloy radome (1) to be encapsulated by whole common mode inductance, in gap, during encapsulation, fill full 1) in step the most accurate
Standby graininess heat-conducting insulation material (4)；Then use epoxy resin to seal, i.e. obtain pending common mode inductance；
4) stabilizing treatment of common mode inductance
1. by 3) in the pending common mode inductance that 3. obtains of step be positioned in household freezer, temperature not higher than-70 DEG C, insulation
20min-30min, it is thus achieved that cold treatment common mode inductance；
2., after 1. step completes, cold treatment common mode inductance step 1. obtained is put at room temperature, returns back to room temperature to its temperature,
It is then placed in baking oven, rises to 100 DEG C-105 DEG C with the heating rate of not higher than 2 DEG C/min, be incubated 25min-30min, it is thus achieved that
Thermal cycle common mode inductance；
3. thermal cycle common mode inductance step 2. obtained is put at room temperature, returns back to room temperature to its temperature；
4. 1. ~ 3. operation twice is repeated, needed for i.e. obtaining, applies the common mode inductance of high stability ultracrystalline magnetic core (3).
The common mode inductance applying high stability ultracrystalline magnetic core that the most according to claim 1, manufacture method produces, its
Be characterised by: apply special ultracrystalline magnetic core (3), apply specific ceramic skeleton (2), to apply aluminium alloy totally-enclosed
Formula radome (1), apply heat-conducting insulation material (4)；Ultracrystalline magnetic core (3) passes through epoxy resin sealing in ceramic skeleton (2)
In, winding (6) surface and winding (6) and ceramic skeleton (2) gap are filled with heat-conducting insulation material (4), heat-conducting insulation material
(4) epoxy resin the most also it is packaged with；Aluminium alloy radome (1) by whole neutralizing transformer in addition to radome (1) part suit
Including, use full-enclosed structure.
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| CN109285683A (en) * | 2018-10-29 | 2019-01-29 | 山东同方鲁颖电子有限公司 | A kind of method of stable chip inductance performance |
| CN109599262A (en) * | 2018-12-20 | 2019-04-09 | 北流市柯顺电子有限公司 | A kind of method that common mode inductance magnetic core restores impedance value |
| CN110619992A (en) * | 2019-10-22 | 2019-12-27 | 台达电子企业管理（上海）有限公司 | Magnetic element |
| CN120108903A (en) * | 2025-04-30 | 2025-06-06 | 上海音特电子有限公司 | An amorphous material for high-performance common-mode suppressor for CAN FD |
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