CN106558415A - A kind of manufacture method of nanocrystalline common mode inductance - Google Patents
A kind of manufacture method of nanocrystalline common mode inductance Download PDFInfo
- Publication number
- CN106558415A CN106558415A CN201611022643.1A CN201611022643A CN106558415A CN 106558415 A CN106558415 A CN 106558415A CN 201611022643 A CN201611022643 A CN 201611022643A CN 106558415 A CN106558415 A CN 106558415A
- Authority
- CN
- China
- Prior art keywords
- nanocrystalline
- common mode
- mode inductance
- manufacture method
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- 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)
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Soft Magnetic Materials (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
A kind of manufacture method of nanocrystalline common mode inductance, is related to inductive technologies field, and it is 38mm which passes through nanocrystalline strip to be coiled into an external diameter, and internal diameter is 22mm, is highly the Nanocrystalline core of 13mm；The Nanocrystalline core is placed in vacuum annealing furnace carries out heat treatment；Nanocrystalline core after heat treatment is carried out solidifying and aging with epoxy resin；Nanocrystalline core after solidifying and be aging is put into into protecting box；The coil of two windings is completed respectively on the both sides of the protecting box of Nanocrystalline core uniformly with two enamel-covered wires; and then complete the making of nanocrystalline common mode inductance; by the heat treatment method of special setting; inductance can be obtained more than 15mH; outside dimension is less than 48mm; nanocrystalline common mode inductance of the thickness less than 28mm, realizes that inductance value is big, the little purpose of size.
Description
Technical field
The present invention relates to inductive technologies field, more particularly to a kind of manufacture method of nanocrystalline common mode inductance.
Background technology
With the trend that technology develops, the common mode inductance device in electronic devices and components becomes to directions such as miniaturization, lightweights
Leather, but existing technique is difficult to obtain balance, the big inductance of inductance value, its volume between the miniaturization and inductance value of inductance
Corresponding also larger, the little inductance of inductance value, its volume are corresponding also less, it is difficult to accomplish that inductance value is big, its volume is less.
The content of the invention
It is an object of the invention to avoid weak point of the prior art and provide a kind of operating current for 15A, inductance
More than 15mH, outside dimension is less than 48mm, manufacture method of the thickness less than the nanocrystalline common mode inductance of 28mm.
The purpose of the present invention is achieved through the following technical solutions：
A kind of manufacture method of nanocrystalline common mode inductance is provided, is comprised the steps：
Step one：It is 38mm that nanocrystalline strip is coiled into an external diameter, and internal diameter is 22mm, is highly the Nanocrystalline core of 13mm；
Step 2：The Nanocrystalline core is placed in vacuum annealing furnace carries out heat treatment；
Step 3：Nanocrystalline core after heat treatment is carried out solidifying and aging with epoxy resin；
Step 4：Nanocrystalline core after solidifying and be aging is put into into protecting box；
Step 5：The coil of two windings is completed respectively on the both sides of the protecting box of Nanocrystalline core uniformly with two enamel-covered wires,
And then complete the making of nanocrystalline common mode inductance；
Wherein, the heat treatment method of step 2 is specifically：
A) through 120 minutes in-furnace temperature from room temperature to 653K；
B) after 653K is incubated 20 minutes, 763K was warming up to 36 minutes；
C) after 763K is incubated 40 minutes, 803K was warming up to 13 minutes；
D) after 803K is incubated 60 minutes, 838K was warming up to 12 minutes；
E) after 838K is incubated 40 minutes, bonnet high wind is exited furnace body temperature dramatic decrease to 353K, open firedoor handle nanometer
Brilliant magnet ring takes out；
F) Nanocrystalline core taken out from stove is placed on cooling frame room temperature is rapidly cooled to high wind again.
Wherein, before heat treatment：Nanocrystalline core is placed in the effective uniform temperature zone of vacuum annealing furnace, fire door is locked, is opened
Enable the power supply in heating and evacuation, open for cooling down the cooling water of the sealing ring of fire door, in stove vacuum remain less than-
0.1Mpa comes out of the stove to Nanocrystalline core.
Wherein, model PUE of the enamel-covered wire, heatproof are 155 DEG C, a diameter of 2.0mm.
Wherein, the solidification of the step 4 and it is aging specifically：Single Nanocrystalline core is sprayed epoxy resin, is put into
The baking oven inside holding for being warming up to 85 DEG C carries out solidification aging process in 40 minutes, is put into outside baking oven and often naturally cools to after the completion of insulation
Temperature.
Wherein, Nanocrystalline core is put into protecting box specifically by the step 4：Office on the bottom of plastic cement protecting box
Portion is injected
The special silicone grease of amorphous, then the Nanocrystalline core after solidification aging is loaded in the bottom in plastic cement protecting box, finally cover
The cover of plastic cement protecting box.
Wherein, on the bottom of the plastic cement protecting box divide inject the special silicone grease of amorphous that consumptions are about 0.3g at 3 points.
Wherein, two groups of coils of the step 5, wherein every group of coil is around 12 circles, point two-layer coiling, ground floor is around 7 circles
Afterwards, the second layer unrolls 5 circles toward starting point.
Wherein, the step 5 also includes：Successively coil pin depainting, upper stannum, point epoxy resin are fixed, and pin is cut
To appropriate length, test inductance value is more than 15mH.
Wherein, the step one is specifically included：The core mould of a diameter of 22mm is installed in amorphous sutomatic winding machine,
It is 22mm, the Nanocrystalline core highly for 13mm that the iron based nano crystal band of 13mm length is wound into an external diameter for 38mm, internal diameter.
Wherein, the step one specifically also includes：The elasticity of detection amorphous magnet ring：External force is from perpendicular to Nanocrystalline core
Bandwidth direction Nanocrystalline core compressive strain, after releasing external force, the height dimension of the Impact direction of magnet ring can recover to big
Before not by external force 80%.
Beneficial effects of the present invention：
The present invention is 38mm by nanocrystalline strip is coiled into an external diameter, and internal diameter is 22mm, is highly the nanocrystalline magnetic of 13mm
Ring；The Nanocrystalline core is placed in vacuum annealing furnace carries out heat treatment；Nanocrystalline core after heat treatment is used
Epoxy resin carries out solidifying and aging；Nanocrystalline core after solidifying and be aging is put into into protecting box；With two enamel-covered wires
Uniformly complete the coil of two windings respectively on the both sides of the protecting box of Nanocrystalline core, and then complete nanocrystalline common mode inductance
Make；Wherein, heat treatment method is specifically：Through 120 minutes in-furnace temperature from room temperature to 653K；20 are incubated in 653K
After minute, 763K was warming up to 36 minutes；After 763K is incubated 40 minutes, 803K was warming up to 13 minutes；60 are incubated in 803K
After minute, 838K was warming up to 12 minutes；After 838K is incubated 40 minutes, bonnet high wind is exited furnace body temperature dramatic decrease extremely
353K, opens firedoor handle Nanocrystalline core and takes out；The Nanocrystalline core taken out from stove is placed on cooling frame and uses high wind urgency again
Speed is cooled to room temperature, so that it may inductance is obtained and is more than 15mH, outside dimension is less than 48mm, nanocrystalline common mode electricity of the thickness less than 28mm
Sense, realizes that inductance value is big, the little purpose of size.
Description of the drawings
Invention is described further using accompanying drawing, but the embodiment in accompanying drawing does not constitute any limitation of the invention,
For one of ordinary skill in the art, on the premise of not paying creative work, can be obtaining which according to the following drawings
Its accompanying drawing.
Fig. 1 is the structural representation of the manufacture method of a kind of nanocrystalline common mode inductance of the present invention.
Include in Fig. 1：
Nanocrystalline core 1；
PBT plastic cement protecting box 2；
Coil 3.
Specific embodiment
The invention will be further described with the following Examples.
The manufacture method of a kind of nanocrystalline common mode inductance of the present embodiment, comprises the steps：
Step one：The core mould of a diameter of 22mm is installed in amorphous sutomatic winding machine, the iron based nano crystal band of 13mm length
It is 22mm, the Nanocrystalline core 1 highly for 13mm that an external diameter is wound into for 38mm, internal diameter.
Then, detect the elasticity of amorphous magnet ring：External force is from the direction of the bandwidth perpendicular to Nanocrystalline core 1 nanocrystalline
Magnet ring 1
Compressive strain, after releasing external force, the height dimension of the Impact direction of magnet ring can recover to more than not by 80% before external force, this
Step can eliminate the internal stress of magnet ring, and then can save subsequent handling.
Step 2：The Nanocrystalline core 1 is placed in vacuum annealing furnace carries out heat treatment：Nanocrystalline core 1 is placed on very
Sky is moved back
In the effective uniform temperature zone of stove, fire door is locked, open the power supply for heating and evacuation, open for cooling down fire door
Sealing ring cooling water, in stove, vacuum remains less than -0.1Mpa and comes out of the stove to Nanocrystalline core 1,
A) through 120 minutes in-furnace temperature from room temperature to 653K；
B) after 653K is incubated 20 minutes, 763K was warming up to 36 minutes；
C) after 763K is incubated 40 minutes, 803K was warming up to 13 minutes；
D) after 803K is incubated 60 minutes, 838K was warming up to 12 minutes；
E) after 838K is incubated 40 minutes, bonnet high wind is exited furnace body temperature dramatic decrease to 353K, open firedoor handle nanometer
Brilliant magnet ring 1 takes out；
f）The Nanocrystalline core 1 taken out from stove is placed on cooling frame room temperature is rapidly cooled to high wind again.
Step 3：Nanocrystalline core 1 after heat treatment is carried out solidifying and aging with epoxy resin：Single nanometer
Brilliant magnet ring 1 sprays epoxy resin, and the baking oven inside holding for being put into warmed up to 85 DEG C carries out solidification aging process in 40 minutes, has been incubated
It is put into into after outside baking oven and naturally cools to room temperature.
Step 4：Nanocrystalline core 1 after solidifying and be aging is put into into protecting box:It is first 38mm in length, width
For 22mm, highly on the bottom for the PBT plastic cement protecting box 2 of 14mm, the amorphous silicon special for dividing 3 points of injection consumptions to be about 0.3g
Fat, then the Nanocrystalline core 1 after aging is loaded in shield box in bottom, the cover of PBT plastic cement protecting box 2 is finally covered, is tested
Inductance value is not less than 110 μ H.
The main effect of above step three and step 4 is to allow magnet ring that external carbuncle is not affected or less affected by coiling to affect magnetic
Performance.
Step 5：Two windings are completed uniformly on the both sides of the protecting box of Nanocrystalline core 1 respectively with two enamel-covered wires
Coil 3, wherein every group of coil 3 is around 12 circles, point two-layer coiling, after 7 circles, the second layer unrolls 5 circles ground floor toward starting point, then
Successively 3 pin depainting of coil, upper stannum, point epoxy resin are fixed, and pin is cut appropriate length, and test inductance value is more than
15mH。
Wherein, model PUE of the enamel-covered wire, heatproof are 155 DEG C, the type of a diameter of 2.0mm, PUE for enamel-covered wire,
Such enamel-covered wire is higher temperature line, is resistant to 155 DEG C, can ensure that when there is bracing wire using higher temperature line, and easy damaged is not allowed in its bending place
Coat of paint.
Nano crystal soft magnetic material used by common mode inductance is had the advantage that relative to other soft magnetic materials：
1st, with high magnetic flux density about 1.25T, core cross section product can effectively be reduced；
2nd, with high magnetic permeability about more than 80000, it is possible to reduce the number of turn of winding；
3rd, with high insertion loss；
4th, with good frequency characteristic be 50Hz-100KHz；
5th, with about 580 DEG C of high-curie temperature；
6th, with excellent temperature characterisitic, can be in -55 DEG C～125 DEG C temperature ranges, inductance value is held essentially constant.
The present embodiment can be obtained inductance more than 15mH by the method for the above, and outside dimension is less than 48mm, and thickness is less than
The nanocrystalline common mode inductance of 28mm, as shown in figure 1, it is capable of achieving inductance value greatly, the little purpose of size.
Finally it should be noted that above example is only illustrating technical scheme, rather than to present invention guarantor
The restriction of shield scope, although having made to explain to the present invention with reference to preferred embodiment, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention
Matter and scope.
Claims (10)
1. a kind of manufacture method of nanocrystalline common mode inductance, it is characterised in that：Comprise the steps：
Step one：It is 38mm that nanocrystalline strip is coiled into an external diameter, and internal diameter is 22mm, is highly the Nanocrystalline core of 13mm；
Step 2：The Nanocrystalline core is placed in vacuum annealing furnace carries out heat treatment；
Step 3：Nanocrystalline core after heat treatment is carried out solidifying and aging with epoxy resin；
Step 4：Nanocrystalline core after solidifying and be aging is put into into protecting box；
Step 5：The coil of two windings is completed respectively on the both sides of the protecting box of Nanocrystalline core uniformly with two enamel-covered wires,
And then complete the making of nanocrystalline common mode inductance；
Wherein, the heat treatment method of step 2 is specifically：
Through 120 minutes in-furnace temperature from room temperature to 653K；
After 653K is incubated 20 minutes, 763K was warming up to 36 minutes；
After 763K is incubated 40 minutes, 803K was warming up to 13 minutes；
After 803K is incubated 60 minutes, 838K was warming up to 12 minutes；
After 838K is incubated 40 minutes, bonnet high wind is exited furnace body temperature dramatic decrease to 353K, open firedoor handle nanocrystalline
Magnet ring takes out；
The Nanocrystalline core taken out from stove is placed on cooling frame room temperature is rapidly cooled to high wind again.
2. a kind of manufacture method of nanocrystalline common mode inductance as claimed in claim 1, it is characterised in that：The heat treatment of step 2
Before：Nanocrystalline core is placed in the effective uniform temperature zone of vacuum annealing furnace, fire door is locked, is opened for heating and evacuation
Power supply, opens for cooling down the cooling water of the sealing ring of fire door, and in stove, vacuum remains less than -0.1Mpa and goes out to Nanocrystalline core
Stove.
3. a kind of manufacture method of nanocrystalline common mode inductance as claimed in claim 1, it is characterised in that：The type of the enamel-covered wire
Number be PUE, heatproof be 155 DEG C, a diameter of 2.0mm.
4. a kind of manufacture method of nanocrystalline common mode inductance as claimed in claim 1, it is characterised in that：The step 4 is consolidated
Change and it is aging specifically：Single Nanocrystalline core is sprayed epoxy resin, put to 85 DEG C of baking oven inside holding is carried out admittedly for 40 minutes
Change aging process, be put into after the completion of insulation outside baking oven and naturally cool to room temperature.
5. a kind of manufacture method of nanocrystalline common mode inductance as claimed in claim 1, it is characterised in that：The step 4 will be received
The brilliant magnet ring of rice puts into protecting box specifically：The special silicone grease of amorphous is locally implanted on the bottom of plastic cement protecting box, then solidification
Nanocrystalline core after aging loads in the bottom of plastic cement protecting box, finally covers the cover of plastic cement protecting box.
6. a kind of manufacture method of nanocrystalline common mode inductance as claimed in claim 5, it is characterised in that：Protect in the plastic cement
The special silicone grease of amorphous for dividing 3 points of injection consumptions to be about 0.3g on the bottom of box.
7. a kind of manufacture method of nanocrystalline common mode inductance as claimed in claim 1, it is characterised in that：The two of the step 5
Group coil, wherein every group of coil is around 12 circles, point two-layer coiling, after 7 circles, the second layer unrolls 5 circles ground floor toward starting point.
8. a kind of manufacture method of nanocrystalline common mode inductance as claimed in claim 1, it is characterised in that：The step 5 is also wrapped
Include：Successively coil pin depainting, upper stannum, point epoxy resin are fixed, and pin is cut appropriate length, and test inductance value is more than
15mH。
9. a kind of manufacture method of nanocrystalline common mode inductance as claimed in claim 1, it is characterised in that：The step one is concrete
Including：The core mould of a diameter of 22mm is installed in amorphous sutomatic winding machine, the iron based nano crystal band of 13mm length is wound into
One external diameter is 38mm, internal diameter is 22mm, the Nanocrystalline core highly for 13mm.
10. a kind of manufacture method of nanocrystalline common mode inductance as claimed in claim 9, it is characterised in that：The step one has
Body also includes：The elasticity of detection amorphous magnet ring：External force is from the direction of the bandwidth perpendicular to Nanocrystalline core Nanocrystalline core
Compressive strain, after releasing external force, the height dimension of the Impact direction of magnet ring can recover to more than not by 80% before external force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611022643.1A CN106558415B (en) | 2016-11-21 | 2016-11-21 | A kind of production method of nanocrystalline common mode inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611022643.1A CN106558415B (en) | 2016-11-21 | 2016-11-21 | A kind of production method of nanocrystalline common mode inductance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106558415A true CN106558415A (en) | 2017-04-05 |
| CN106558415B CN106558415B (en) | 2018-05-25 |
Family
ID=58444477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611022643.1A Active CN106558415B (en) | 2016-11-21 | 2016-11-21 | A kind of production method of nanocrystalline common mode inductance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106558415B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107025987A (en) * | 2017-05-26 | 2017-08-08 | 云南电网有限责任公司电力科学研究院 | A kind of distribution transformer and core manufacturing method with iron based nano crystal iron core |
| CN107345265A (en) * | 2017-06-22 | 2017-11-14 | 东莞市大忠电子有限公司 | A kind of annealing process for the remanent magnetism for reducing nanocrystalline magnet core |
| CN107393671A (en) * | 2017-06-22 | 2017-11-24 | 东莞市大忠电子有限公司 | A kind of iron based nanocrystalline magnet core and preparation method thereof |
| CN107393672A (en) * | 2017-06-22 | 2017-11-24 | 东莞市大忠电子有限公司 | A kind of iron nickel base nanometer crystalline substance magnetic core and preparation method thereof |
| CN107393674A (en) * | 2017-08-16 | 2017-11-24 | 贵州鑫湄纳米科技有限公司 | A kind of iron-based amorphous magnetic core and its application |
| 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 |
| CN109755013A (en) * | 2019-01-25 | 2019-05-14 | 河南中汇致简电子科技有限公司 | A kind of common mode inductance manufacturing process |
| CN110136923A (en) * | 2019-05-31 | 2019-08-16 | 咸阳辉煌电子磁性材料研究所 | A kind of amorphous nano-crystalline magnet ring of epoxy powder coating and preparation method thereof |
| CN110189910A (en) * | 2019-07-02 | 2019-08-30 | 洛阳中赫非晶科技有限公司 | A kind of energy-saving annealing process of amorphous-ultramicro-crystal alloy choke coil magnet ring |
| CN112326714A (en) * | 2020-10-28 | 2021-02-05 | 北京北冶功能材料有限公司 | Device and method for measuring Curie temperature of magnetic material |
| CN114914083A (en) * | 2022-04-29 | 2022-08-16 | 曼特(广州)磁性器件有限公司 | Differential modulus quantitative analysis method of nanocrystalline common mode inductor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360768A (en) * | 2011-11-04 | 2012-02-22 | 安泰科技股份有限公司 | Amorphous iron core, manufacturing method thereof and transformer with high performance, low noise and low cost |
| CN102363830A (en) * | 2011-10-26 | 2012-02-29 | 青岛云路新能源科技有限公司 | Heat treatment method for ultracrystalline magnetic core |
| CN202695058U (en) * | 2012-07-20 | 2013-01-23 | 贵阳顺络迅达电子有限公司 | Surface-mounted type common-mode filter inductor |
| CN104200982A (en) * | 2014-03-28 | 2014-12-10 | 北京冶科磁性材料有限公司 | Manufacturing method of nanocrystalline magnetic core for high-frequency electrostatic dust collection power transformer |
| CN104576017A (en) * | 2013-10-25 | 2015-04-29 | 上海米创电器有限公司 | Manufacturing method of amorphous alloy iron core for transformer with high saturation magnetization and low loss |
-
2016
- 2016-11-21 CN CN201611022643.1A patent/CN106558415B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363830A (en) * | 2011-10-26 | 2012-02-29 | 青岛云路新能源科技有限公司 | Heat treatment method for ultracrystalline magnetic core |
| CN102360768A (en) * | 2011-11-04 | 2012-02-22 | 安泰科技股份有限公司 | Amorphous iron core, manufacturing method thereof and transformer with high performance, low noise and low cost |
| CN202695058U (en) * | 2012-07-20 | 2013-01-23 | 贵阳顺络迅达电子有限公司 | Surface-mounted type common-mode filter inductor |
| CN104576017A (en) * | 2013-10-25 | 2015-04-29 | 上海米创电器有限公司 | Manufacturing method of amorphous alloy iron core for transformer with high saturation magnetization and low loss |
| CN104200982A (en) * | 2014-03-28 | 2014-12-10 | 北京冶科磁性材料有限公司 | Manufacturing method of nanocrystalline magnetic core for high-frequency electrostatic dust collection power transformer |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107025987A (en) * | 2017-05-26 | 2017-08-08 | 云南电网有限责任公司电力科学研究院 | A kind of distribution transformer and core manufacturing method with iron based nano crystal iron core |
| CN107393672B (en) * | 2017-06-22 | 2020-03-17 | 东莞市大忠电子有限公司 | Iron-nickel-based nanocrystalline magnetic core and preparation method thereof |
| CN107345265A (en) * | 2017-06-22 | 2017-11-14 | 东莞市大忠电子有限公司 | A kind of annealing process for the remanent magnetism for reducing nanocrystalline magnet core |
| CN107393671A (en) * | 2017-06-22 | 2017-11-24 | 东莞市大忠电子有限公司 | A kind of iron based nanocrystalline magnet core and preparation method thereof |
| CN107393672A (en) * | 2017-06-22 | 2017-11-24 | 东莞市大忠电子有限公司 | A kind of iron nickel base nanometer crystalline substance magnetic core and preparation method thereof |
| CN107345265B (en) * | 2017-06-22 | 2019-08-09 | 东莞市大忠电子有限公司 | A kind of annealing process for the remanent magnetism reducing nanocrystalline magnet core |
| CN107393674A (en) * | 2017-08-16 | 2017-11-24 | 贵州鑫湄纳米科技有限公司 | A kind of iron-based amorphous magnetic core and its application |
| CN107393674B (en) * | 2017-08-16 | 2020-06-23 | 贵州鑫湄纳米科技有限公司 | Iron-based nano amorphous magnetic core and application thereof |
| 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 |
| CN109755013A (en) * | 2019-01-25 | 2019-05-14 | 河南中汇致简电子科技有限公司 | A kind of common mode inductance manufacturing process |
| CN110136923A (en) * | 2019-05-31 | 2019-08-16 | 咸阳辉煌电子磁性材料研究所 | A kind of amorphous nano-crystalline magnet ring of epoxy powder coating and preparation method thereof |
| CN110189910A (en) * | 2019-07-02 | 2019-08-30 | 洛阳中赫非晶科技有限公司 | A kind of energy-saving annealing process of amorphous-ultramicro-crystal alloy choke coil magnet ring |
| CN112326714A (en) * | 2020-10-28 | 2021-02-05 | 北京北冶功能材料有限公司 | Device and method for measuring Curie temperature of magnetic material |
| CN112326714B (en) * | 2020-10-28 | 2024-08-16 | 北京北冶功能材料有限公司 | Magnetic material Curie temperature measuring device and method |
| CN114914083A (en) * | 2022-04-29 | 2022-08-16 | 曼特(广州)磁性器件有限公司 | Differential modulus quantitative analysis method of nanocrystalline common mode inductor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106558415B (en) | 2018-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106558415A (en) | A kind of manufacture method of nanocrystalline common mode inductance | |
| CN108998633B (en) | Heat treatment method of amorphous nanocrystalline magnetic core | |
| CN103985498B (en) | Electromagnetic coil production process | |
| CN103500623A (en) | Current transformer core and method for producing a current transformer core | |
| CN103390492B (en) | A kind of production technology of the ultracrystallite cutting iron core of open-close type transformer | |
| TW200516613A (en) | Magnetic core winding method, apparatus, and product produced therefrom | |
| CN106504846B (en) | A kind of iron silicon-ferrite composite cores and preparation method thereof | |
| CN112951579A (en) | Heat treatment method for residual magnetism of iron-based nanocrystalline magnetic core | |
| CN106298218A (en) | A kind of rectangle amorphous nano-crystalline magnetic core and preparation method thereof | |
| CN101409123B (en) | Soft magnetic ferrite inductor manufacturing technology | |
| CN102965478A (en) | Heat treatment method for iron-based amorphous strip | |
| CN102676757A (en) | Annealing process of amorphous alloy transformer core | |
| CN102737829B (en) | Heat treatment process of low-loss amorphous alloy iron core for transformer | |
| CN104846255B (en) | A kind of preparation method of yttrium iron based permanent magnetic material | |
| CN117038306A (en) | Nanocrystalline magnetic core and preparation method thereof | |
| CN104157431A (en) | Three-phase transformer with built-in high-frequency inductor | |
| CN207624511U (en) | Five sections of hybrid three dimensional wound cores | |
| CN103296811A (en) | Interturn insulating structure of super-thin 6kV high-voltage motor and manufacturing method of interturn insulating structure | |
| CN101685705B (en) | Double-protection-box oppositely-clamping iron-based amorphous alloy band magnet core | |
| CN103887060A (en) | Manufacturing method for lower end seal of dry type transformer low-voltage coil | |
| AU2017208249B2 (en) | Ferrite core, current transformer and leakage protection switch | |
| CN106653278A (en) | Novel iron-silicon magnetic core and preparation method thereof | |
| CN206505807U (en) | A kind of improved transformation coil | |
| CN203456131U (en) | Copper strap wire for electrical excitation coil | |
| CN107845494A (en) | Five sections of hybrid three dimensional wound cores |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |