CN103390492A - Production process of ultra-crystallite cutting iron core for split mutual inductor - Google Patents
Production process of ultra-crystallite cutting iron core for split mutual inductor Download PDFInfo
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- CN103390492A CN103390492A CN2013103252090A CN201310325209A CN103390492A CN 103390492 A CN103390492 A CN 103390492A CN 2013103252090 A CN2013103252090 A CN 2013103252090A CN 201310325209 A CN201310325209 A CN 201310325209A CN 103390492 A CN103390492 A CN 103390492A
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- ultracrystallite
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 238000005520 cutting process Methods 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000003973 paint Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims abstract description 5
- 238000005516 engineering process Methods 0.000 claims description 14
- 238000010792 warming Methods 0.000 claims description 10
- 208000034189 Sclerosis Diseases 0.000 claims description 8
- 238000007598 dipping method Methods 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004804 winding Methods 0.000 abstract description 3
- 238000002791 soaking Methods 0.000 abstract 2
- 238000004321 preservation Methods 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000007669 thermal treatment Methods 0.000 abstract 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 229910000889 permalloy Inorganic materials 0.000 description 4
- 239000004922 lacquer Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 1
- 102100028735 Dachshund homolog 1 Human genes 0.000 description 1
- 101000915055 Homo sapiens Dachshund homolog 1 Proteins 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- SSJXIUAHEKJCMH-UHFFFAOYSA-N cyclohexane-1,2-diamine Chemical compound NC1CCCCC1N SSJXIUAHEKJCMH-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229960001124 trientine Drugs 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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- Manufacturing Cores, Coils, And Magnets (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The invention discloses a production process of an ultra-crystallite cutting iron core for a split mutual inductor. The production process comprises the following steps: a, placing an ultra-crystallite belt material iron core on a winding machine for winding into an iron core, and fixing by spot welding; b, thermally heating the iron core in a gradual temperature rising way, namely, heating to 380 DEG C and preserving heat for 10-50 minutes, heating to 450 DEG C and preserving heat for 10-50 minutes, and heating to 560-600 DEG C and preserving heat for 30-60 minutes; c, rapidly cooling by adopting air cooling till the temperature of the iron core is lowered to 300 DEG C, and controlling the time period from the end of the heat preservation to a moment when the temperature of the iron core falls below 300 DEG C to be within 45 minutes; d, reshaping the iron core, loading into a mold, putting into prepared paint together for soaking in vacuum, and hardening; e, cutting the cured iron core along a symmetrical center line, ensuring the flatness and smoothness of a notch, and eliminating scattering and burrs of the iron core; and f, testing and encapsulating. The process disclosed by the invention has the advantages that the method is simple, a thermal treatment process is improved, a paint soaking step is added, a low-cost and high-performance iron core can be realized, and a very remarkable effect is achieved.
Description
Technical field
The invention belongs to electronic devices and components design and development technical field, relate to a kind of ultracrystallite cutting iron core, be specially adapted to the instrument transformer of open-close type.
Background technology
The open-close type instrument transformer generally adopts silicon strip to roll iron core and forms through cutting, but the silicon steel performance is low, causes the instrument transformer precision lower, can only make inferior grade open-close type instrument transformer; High-grade open-close type instrument transformer is generally used permalloy material iron core, but cost is higher.Microcrystalline iron core has very high magnetic property, adopts ultracrystallite material cutting iron core can greatly improve the precision of open-close type instrument transformer, enhances product performance, and reduces costs.
Summary of the invention
The present invention is in order to solve the technical problem that in prior art, the transformer iron core performance is low, cost is higher, designed the ultracrystallite cutting iron core that a kind of open-close type instrument transformer is used,, by the improvement to its production Technology, reach the precision that can improve instrument transformer when reducing costs.
The technical solution used in the present invention is, the production technology of the ultracrystallite cutting iron core that a kind of open-close type instrument transformer is used, and the step of described production technology comprises:
A, the ultracrystallite band is placed on up-coiler and is wound into iron core, and spot welding is firm;
B, above-mentioned iron core is heat-treated, heat treatment process adopts the temperature-gradient method mode, at first is warming up to 380 ℃, is incubated 10～50 minutes, then is warming up to 450 ℃, is incubated 10～50 minutes, then is warming up to 560-600 ℃, is incubated 30～60 minutes;
C, adopt air-cooled rapid cooling, make the iron core temperature be down to 300 ℃, from insulation, finish to be down to below 300 ℃ to the iron core temperature, be controlled in 45 minutes;
D, iron core is carried out after shaping packing into mould, put into together the bicomponent epoxy resin paint for preparing, carry out vacuum paint dipping, make its sclerosis;
E, the iron core after sclerosis is cut along symmetrical center line, guarantee that otch is smooth smooth, iron core is without loose sheet, without burr;
F, test and encapsulation.
Described a step ultracrystallite band iron core is chosen GB trade mark 1K107 or 1K107B material.
Adopt 12 zones of different monitor temperatures during described b step heat treatment, 6 temperature controls, guarantee whole furnace temperature uniformity and iron core consistency of performance.
In described bicomponent epoxy resin paint each component by weight the mark ratio be E82X portions of resin curing agent: acetone=2: (1～1.5): (9～11).
Key of the present invention is that selected material and Technology for Heating Processing is simple, and 1K107 or 1K107B material help to improve the precision of open-close type instrument transformer.Ferrite is just led as 2000Gs/Oe, and silicon steel is just led as 1000Gs/Oe; And ultracrystallite just to lead be 4 * 10
4～8 * 10
4Gs/Oe, the initial magnetic permeability of ferrite and silicon steel sheet is all well below the ultracrystallite material, the ultracrystallite material cost is more much lower than permalloy again, and the ultracrystallite material still has higher initial magnetic permeability after cutting, can meet the problem of open-close type instrument transformer precision deficiency.
The invention has the beneficial effects as follows, process is simple, on the basis of original technique, only need to improve the step of Technology for Heating Processing and increase dipping lacquer, can realize the iron core of low-cost and high-performance, and effect is fairly obvious.
Embodiment
The production technology of the ultracrystallite cutting iron core that a kind of open-close type instrument transformer is used, key is: the step of described production technology comprises:
A, ultracrystallite band iron core is placed on up-coiler and is wound into iron core, and spot welding is firm;
B, above-mentioned iron core is heat-treated, heat treatment process adopts the temperature-gradient method mode, at first is warming up to 380 ℃, is incubated 10～50 minutes, then is warming up to 450 ℃, is incubated 10～50 minutes, then is warming up to 560-600 ℃, is incubated 30～60 minutes;
C, adopt air-cooled rapid cooling, make the iron core temperature be down to 300 ℃, from insulation, finish to be down to below 300 ℃ to the iron core temperature, be controlled in 45 minutes;
D, iron core is carried out after shaping packing into mould, put into together the bicomponent epoxy resin paint for preparing, carry out vacuum paint dipping, make its sclerosis;
E, the iron core after sclerosis is cut along symmetrical center line, guarantee that otch is smooth smooth, iron core is without loose sheet, without burr;
F, test and encapsulation.
Described a step ultracrystallite band iron core is chosen GB trade mark 1K107 or 1K107B material.
Adopt 12 zones of different monitor temperatures during described b step heat treatment, 6 temperature controls, guarantee whole furnace temperature uniformity and iron core consistency of performance.
In described bicomponent epoxy resin paint each component by weight the mark ratio be E82X portions of resin curing agent: acetone=2: (1～1.5): (9～11).
The present invention in the specific implementation, at first selects GB trade mark 1K107 or 1K107B material band, after being wound to the regulation shape and size on up-coiler spot welding firm, require to reel closely, smooth with flat-plate compressed, be shaped as circle or rectangle.
Curing agent is a kind of in vinyl triamine, DACH, di-2-ethylhexylphosphine oxide hexamethylene alkanamine, triethylene tetramine, TEPA.
Then the winding iron core is heat-treated, heat treatment process adopts the temperature-gradient method mode, be incubated with 10 minutes-50 minutes respectively at 380 ℃ and 450 ℃, then be warming up to 560-600 ℃, insulation 30-60 minute, adopt air-cooled rapid cooling after finishing, make the iron core temperature be down to 300 ℃ with after interior, finish cooling, adopt 12 zones of different monitor temperatures during heat treatment, 6 temperature controls, guarantee whole furnace temperature uniformity and iron core consistency of performance.
After heat treatment is completed, iron core is carried out shaping, the mould of packing into after shaping is put into the paint vehicle for preparing, and carries out vacuum paint dipping.Iron core guarantees that through shaping and band mould dipping lacquer change of shape is little, makes follow-up cutting profile complete, is of the required size.
Use as requested particular manufacturing craft cutting, guarantee after cutting that otch is smooth smooth, iron core is without defects such as loose sheet, burrs.
Test finally go-on-go and encapsulation.
Microcrystalline iron core after heat treatment, carries out the dipping lacquer sclerosis, and sclerosis is rear to cutting.It is smooth, smooth that otch will keep, to reduce the performance loss.The magnetic permeability of ultracrystallite material own is higher, and therefore, ultracrystallite cutting iron core performance is better than silicon steel cutting iron core, can be applicable to the open-close type instrument transformer of degree of precision, and the permalloy iron core that cost is used lower than the high accuracy grade.
Table 1
Can find out from top table 1, no matter be initial magnetic permeability, maximum permeability, saturation induction density, or density and Curie temperature, the performance of microcrystalline iron core all is superior to silicon steel core and the permalloy iron core of prior art, and this has just verified that effect of the present invention is very significant.
Claims (4)
1. the production technology of the ultracrystallite cutting iron core used of an open-close type instrument transformer, it is characterized in that: the step of described production technology comprises:
A, the ultracrystallite band is placed on up-coiler and is wound into iron core, and spot welding is firm;
B, above-mentioned iron core is heat-treated, heat treatment process adopts the temperature-gradient method mode, at first is warming up to 380 ℃, is incubated 10～50 minutes, then is warming up to 450 ℃, is incubated 10～50 minutes, then is warming up to 560-600 ℃, is incubated 30～60 minutes;
C, adopt air-cooled rapid cooling, make the iron core temperature be down to 300 ℃, from insulation, finish to be down to below 300 ℃ to the iron core temperature, be controlled in 45 minutes;
D, iron core is carried out after shaping packing into mould, put into together the bicomponent epoxy resin paint for preparing, carry out vacuum paint dipping, make its sclerosis;
E, the iron core after sclerosis is cut along symmetrical center line, guarantee that otch is smooth smooth, iron core is without loose sheet, without burr;
F, test and encapsulation.
2. the production technology of the ultracrystallite cutting iron core used of a kind of open-close type instrument transformer according to claim 1, it is characterized in that: described a step ultracrystallite band iron core is chosen GB trade mark 1K107 or 1K107B material.
3. the production technology of the ultracrystallite cutting iron core used of a kind of open-close type instrument transformer according to claim 1, it is characterized in that: adopt 12 zones of different monitor temperatures during described b step heat treatment, 6 temperature controls, guarantee whole furnace temperature uniformity and iron core consistency of performance.
4. the production technology of the ultracrystallite cutting iron core used of a kind of open-close type instrument transformer according to claim 1 is characterized in that: in described bicomponent epoxy resin paint each component by weight the mark ratio be E82X portions of resin curing agent: acetone=2: (1～1.5): (9～11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310325209.0A CN103390492B (en) | 2013-07-31 | 2013-07-31 | A kind of production technology of the ultracrystallite cutting iron core of open-close type transformer |
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| CN201310325209.0A CN103390492B (en) | 2013-07-31 | 2013-07-31 | A kind of production technology of the ultracrystallite cutting iron core of open-close type transformer |
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| Publication Number | Publication Date |
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| CN103390492A true CN103390492A (en) | 2013-11-13 |
| CN103390492B CN103390492B (en) | 2016-08-31 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451071A (en) * | 2014-11-13 | 2015-03-25 | 北京冶科磁性材料有限公司 | Heat treatment method for low-loss and medium and high-frequency iron-based nanocrystalline transformer iron cores |
| CN106128747A (en) * | 2016-08-26 | 2016-11-16 | 广东工业大学 | A kind of heat treatment method preparing high-performance iron Based Nanocrystalline Alloys magnetic core and system |
| CN108364776A (en) * | 2018-03-15 | 2018-08-03 | 河北申科电子股份有限公司 | A kind of solidification production technology of current transformer ultracrystalline magnetic core |
| CN109178497A (en) * | 2018-10-12 | 2019-01-11 | 上海劲兆互感器有限公司 | A kind of c-type iron core bonding packaging method |
| CN109285686A (en) * | 2018-08-22 | 2019-01-29 | 横店集团东磁股份有限公司 | A kind of cutting core production method |
| CN110993308A (en) * | 2019-12-23 | 2020-04-10 | 无锡德盛互感器有限公司 | Manufacturing process of transformer iron core |
| CN111341545A (en) * | 2020-03-23 | 2020-06-26 | 大连北方互感器集团有限公司 | Manufacturing process of transformer iron core |
| CN113470964A (en) * | 2021-08-17 | 2021-10-01 | 安徽先锐软磁科技有限公司 | Solidification production process of ultracrystalline iron core for current transformer |
| CN113990597A (en) * | 2021-10-19 | 2022-01-28 | 河北申科磁性材料有限公司 | Strip, high initial permeability amorphous nanocrystalline alloy, magnetic core and open-ended transformer |
| CN113990650A (en) * | 2021-10-19 | 2022-01-28 | 河北申科磁性材料有限公司 | High-permeability open transformer magnetic core and processing technology thereof and open transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451071B (en) * | 2014-11-13 | 2016-09-28 | 北京冶科磁性材料有限公司 | A kind of heat treatment method of low-loss medium-high frequency iron based nano crystal transformer core |
| CN104451071A (en) * | 2014-11-13 | 2015-03-25 | 北京冶科磁性材料有限公司 | Heat treatment method for low-loss and medium and high-frequency iron-based nanocrystalline transformer iron cores |
| CN106128747A (en) * | 2016-08-26 | 2016-11-16 | 广东工业大学 | A kind of heat treatment method preparing high-performance iron Based Nanocrystalline Alloys magnetic core and system |
| CN108364776B (en) * | 2018-03-15 | 2020-09-08 | 河北申科电子股份有限公司 | Solidification production process of ultracrystalline magnetic core for current transformer |
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| CN109285686B (en) * | 2018-08-22 | 2021-01-19 | 横店集团东磁股份有限公司 | Production method for cutting magnetic core |
| CN109285686A (en) * | 2018-08-22 | 2019-01-29 | 横店集团东磁股份有限公司 | A kind of cutting core production method |
| CN109178497A (en) * | 2018-10-12 | 2019-01-11 | 上海劲兆互感器有限公司 | A kind of c-type iron core bonding packaging method |
| CN110993308A (en) * | 2019-12-23 | 2020-04-10 | 无锡德盛互感器有限公司 | Manufacturing process of transformer iron core |
| CN111341545A (en) * | 2020-03-23 | 2020-06-26 | 大连北方互感器集团有限公司 | Manufacturing process of transformer iron core |
| CN111341545B (en) * | 2020-03-23 | 2021-09-14 | 大连北方互感器集团有限公司 | Manufacturing process of transformer iron core |
| CN113470964A (en) * | 2021-08-17 | 2021-10-01 | 安徽先锐软磁科技有限公司 | Solidification production process of ultracrystalline iron core for current transformer |
| CN113990597A (en) * | 2021-10-19 | 2022-01-28 | 河北申科磁性材料有限公司 | Strip, high initial permeability amorphous nanocrystalline alloy, magnetic core and open-ended transformer |
| CN113990650A (en) * | 2021-10-19 | 2022-01-28 | 河北申科磁性材料有限公司 | High-permeability open transformer magnetic core and processing technology thereof and open transformer |
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Effective date of registration: 20170913 Address after: 052360 Hebei Province, Xinji City Cang Xin transit road machinery accessories market Patentee after: HEBEI SHENKE ELECTRIC POWER CO.,LTD. Address before: 052360 Hebei city in Shijiazhuang Province, Xinji City Industrial Zone No. 9 East Street Office Patentee before: HEBEI SHENKE ELECTRONICS Co.,Ltd. |
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Denomination of invention: A production process of ultramicrocrystalline cutting iron core for opening and closing transformer Effective date of registration: 20220505 Granted publication date: 20160831 Pledgee: China Construction Bank Corporation Xinji sub branch Pledgor: HEBEI SHENKE ELECTRONICS Co.,Ltd.|Hebei Shenke mould Co.,Ltd.|Hebei Shenke magnetic materials Co.,Ltd.|Shenke Technology Group Co.,Ltd.|Hebei Shenke Intelligent Manufacturing Co.,Ltd.|HEBEI SHENKE ELECTRIC POWER CO.,LTD. Registration number: Y2022130000029 |
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