CN106683868B - A kind of impregnation means of defence of electromagnet coil - Google Patents
A kind of impregnation means of defence of electromagnet coil Download PDFInfo
- Publication number
- CN106683868B CN106683868B CN201710037534.5A CN201710037534A CN106683868B CN 106683868 B CN106683868 B CN 106683868B CN 201710037534 A CN201710037534 A CN 201710037534A CN 106683868 B CN106683868 B CN 106683868B
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- China
- Prior art keywords
- electromagnet coil
- immersion liquid
- defence
- electromagnet
- impregnation
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Classifications
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- 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
-
- 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
Abstract
The invention discloses a kind of impregnation means of defences of electromagnet coil.Its step is that the shelf for setting electromagnet coil is put into containing in dipping machine, it is added and contains immersion liquid, liquid level is adjusted to concordant with electromagnetism reel bottom, liquid level keeps concordant with electromagnetism reel bottom and is vacuumized after maintaining 8 10 seconds, return-air 23 times, 68 seconds interval times, and maintain 30 40 seconds, return it is aerobic after, be impregnated with 2 minutes at 68 70KPa of vacuum；It bleeds off and contains immersion liquid, vacuumize, maintain vacuum state 1 minute, after impregnation, jig one end is lifted, jig is allowed to tilt, slight jitter is shaked off containing immersion liquid, drip-dry 12 18 minutes, during drip-dry, remove and contain immersion liquid, until top is without apparent flowing until containing immersion liquid, then by the electromagnet coil of drip-dry in oven for baking to doing, baking temperature is 55 65 DEG C, and baking time is 10 hours.The impregnation means of defence of the electromagnet coil has anticorrosion, the control raised purposes of temperature.
Description
Technical field
The present invention relates to the means of defence of electromagnet coil more particularly to a kind of impregnation means of defences of electromagnet coil.
Background technology
It is exposed in air because opening frame magnet spool, Nitromonas is present in any corner in nature, its meeting
Nitrate is become into nitrite, in the higher environment of humidity, nitrite can slowly invade coil inside, with larger electricity
Load (such as capacitive or inductive load, electromagnet coil sheet is as the inductive load) disjunction and connection of arc discharge or coil are because being powered
Rear abnormal high temperature and after causing magnet wire insulation impaired, nitrite will produce glaucous corrosion in coil inside and gives birth to sometimes
At object, coil breakage is caused.
As the preventive means for opening frame electromagnet coil and air insulated, frequently with whole sealing adhesive process, but this for
It is fatal for small size, powerful electromagnet, because this can cause the radiating condition of coil drastically to deteriorate, electromagnet meeting
Yin Wen rises excessively high and burns.
Invention content
The purpose of the present invention is to provide a kind of with anticorrosion, controls the impregnation protection of the raised electromagnet coil of temperature
Method.
To achieve the above object, the present invention provides a kind of impregnation means of defences of electromagnet coil, which is characterized in that step
Suddenly it is:
S1:The shelf for setting electromagnet coil is put into containing in dipping machine, is added and contains immersion liquid, liquid level is adjusted to and electromagnet
Reel bottom is concordant, but may not exceed shelf top.Liquid level keeps concordant with electromagnet reel bottom and maintain, then allows liquid level
It drops to and just moistened electromagnet coil, which is the liquid level in being vacuumized containing immersion liquid；
S2：After vacuumizing, return-air 2-3 times, interval time 6-8 second is subject to liquid level without apparent bubble, maintains 30-40 seconds,
Return it is aerobic after, be impregnated under vacuum；
S3：It bleeds off and contains immersion liquid, vacuumize, maintain vacuum state 1 minute；
S4：After maintaining vacuum state, jig one end to be lifted, jig is allowed to tilt, slight jitter is shaked off containing immersion liquid, drip-dry,
Subject under electromagnet coil is there is no impregnation drop, during drip-dry, the calico of shake and pad sponge must be used electromagnet
Coil top is removed containing immersion liquid, and brush diluent on calico is repeated several times, 2-5 minutes each, can be clear depending on curdled appearance containing immersion liquid
Subject to containing immersion liquid, until top is without apparent flowing until containing immersion liquid；
S5：By the electromagnet coil of drip-dry in oven for baking to dry.
Described is E962 varnish containing immersion liquid and diluent X7 is 1-3 by volume:1 preparation obtains.
The concentration proportion containing immersion liquid is to be measured using No. 4 cups of Cai's grace, and the cutout time is 16-20 seconds.
Hold time concordant with electromagnet reel bottom of liquid level described in S1 steps is 8-10 seconds.
Vacuum pressure described in S2 steps is 68-70KPa, and the impregnation time is 2 minutes.
The drip-dry time described in S4 steps is 12-18 minutes.
Baking temperature described in S5 steps is 55-65 DEG C, and baking time is 10 hours.
Electromagnet coil underlay brushes the calico or oil-Absorbing Sheets of diluent when being toasted described in S5 steps, or is controlled using padded
Has frame.
The impregnation means of defence of the electromagnet coil has anticorrosion, the control raised purposes of temperature.
After being vacuumized in electromagnet coil impregnation step S2 of the present invention, return-air 2-3 times is conducive to soak completely containing immersion liquid
Saturating electromagnet coil allows the copper wire of bottom to be dipped into containing immersion liquid.
Bleed off containing immersion liquid, vacuumize in electromagnet coil of the present invention impregnation step S3, maintain vacuum state to be in order to
Luming containing immersion liquid after preventing product from toasting or generating bubble causes bad order, size bad.
Liquid level is concordant with electromagnet reel bottom in electromagnet coil impregnation step S1 of the present invention holds time as 8-
10 seconds, the horizontal position containing immersion liquid is facilitated deciding on, prevents from being higher than spool containing immersion liquid, prevents the iron core peace for entering spool containing immersion liquid
Fill hole.Baking temperature is 55-65 DEG C in electromagnet coil impregnation step S5 of the present invention, and baking time is 10 hours, works as baking
Roasting temperature is higher than 65 DEG C or baking time be easy to cause framework deformation higher than 10h, and baking temperature is less than 55 DEG C or baking time is low
It cannot be solid being toasted containing immersion liquid in 10h.
It is of the present invention not only to have ensure that filling part containing immersion liquid penetrated into coil inside containing soaking technology, but also avoid entering circle containing immersion liquid
The problem of hole is effectively prevented because that will lead to iron core remarkable action after entering circular hole containing immersion liquid, and electromagnet can not work normally.
The impregnation means of defence of electromagnet coil of the present invention is processing with air pressure capable of being increased and has the rational dwell time, can be allowed
It is fully infiltrated between coil and capacity plastics reel containing immersion liquid or coil turn-to-turn air gap, the complete isolation of guarantee coil and air avoids painting
Envelope curve is corroded the phenomenon that breaking.It is of the present invention to solve coil and air exclusion and control temperature raising very well containing soaking technology
The problem of, solve the problems, such as puzzlement industry, insurmountable always big.
Specific implementation mode
The embodiment of the present invention is described below in detail, the examples of the embodiments are intended to be used to explain the present invention, and cannot
It is interpreted as limitation of the present invention.In the examples where no specific technique or condition is specified, according to described by document in the art
Technology or condition or carried out according to product description.Reagents or instruments used without specified manufacturer is that can lead to
Cross the conventional products of acquisition purchased in market.
Embodiment 1：Electromagnet coil impregnation protection
Containing immersion liquid be E962 varnish and diluent X7 is 1-3 by volume:1 preparation obtains.
S1：The shelf for setting electromagnet coil is put into containing in dipping machine, is added and contains immersion liquid, liquid level is adjusted to and electromagnet
Reel bottom is concordant, but may not exceed skeleton top.After liquid level keeps concordant with electromagnet reel bottom and maintains 8-10 seconds
It allows liquid level to drop to again and just moistened electromagnet coil, which is the liquid level in being vacuumized containing immersion liquid；
S2：After vacuumizing, return-air 2-3 times, interval time 6-8 second is subject to liquid level without apparent bubble, maintains 30-40 seconds,
Return it is aerobic after, be impregnated with 2 minutes at vacuum 68-70KPa；
S3：It bleeds off and contains immersion liquid, vacuumize, maintain vacuum state 1 minute；
S4：After impregnation, jig one end is lifted, jig is allowed to tilt, slight jitter is shaked off containing immersion liquid, 12-18 points of drip-dry
Clock during drip-dry, must use the calico of shake and pad sponge by electromagnetism subject to electromagnet coil is there is no being impregnated under drop
It is removed containing immersion liquid at the top of iron coil, brush diluent on calico is repeated several times, 2-5 minutes each, depending on curdled appearance containing immersion liquid, energy
It removes and contains subject to immersion liquid, until top is without apparent flowing until containing immersion liquid；
S5：By the electromagnet coil of drip-dry in oven for baking to doing, baking temperature is 55-65 DEG C, baking time 10
Hour.
Embodiment 2：Verification test
Electromagnet：Respectively embodiment 1 handles obtained electromagnet F grades 10, the electromagnet F of coating processing containing immersion liquid grades 10
Part, no processing electromagnet F grades 10.Before carrying out mold corrosion experiment, the friendship of 6 days 55 DEG C of high temperature, 25 DEG C of low temperature is first carried out
Become damp heat test processing (the cyclic damp heat test method required according to GB/T 2423.4).
Test method：
1. first measuring the resistance value of electromagnet before experiments with multimeter, and record；
2. will improve Martin's culture medium (i.e. mycotic culture liquid) and be pumped into injection needles pipe, and draw along electromagnet
It is injected into electromagnet at the gap of line switch-on coil (it is required that injection volume：5ml/ is only)；
3. will injection improvement Martin's culture medium electromagnet be placed in high/low temperature Alternate hot and humid experimental box (it is required that：Temperature
25 DEG C of humidity 80%, 3 days/period)；
4. after a cycles, electromagnet material object is taken out, using multimeter test resistance value, and record；
5. after resistance value test passes, it is passed through 220V DC, test action one by one；
6. is powered after the completion of test, using multimeter test resistance value again, and record；
7. repeats the 3. step, new round experimental period is carried out；
8. determines bad phenomenon reason as being found abnormal electromagnet, dismantling analysis in the detection.
The electromagnet number of packages experimental result that is corroded is shown in Table 1.
Anti-corrosion effect experimental result table (part) of 1 treatment process of table to electromagnet coil
As known from Table 1, tested electromagnet coil after 90 day test period, 10 samples of no processing F grades have 3 because of mould
The phenomenon that corrosion wire breakage, F grades of 10 samples of coating processing containing immersion liquid have 2 the phenomenon that breaking because of mold corrosion, take embodiment 1
Obtained electromagnet is handled all to remain intact.
The sample of the coating processing containing immersion liquid there is also enameled wire corrosion wire breakage phenomenon, be due to enamel wire coil coiling
When, between coil and capacity plastics reel or coil turn-to-turn still has air gap, and coating processes are no air pressure operation, although simply, nothing
Method ensures all air gaps of closing, this just creates condition to the infiltration of air.The infiltration of air means invading for nitrite
Enter, enameled wire can be caused to be corroded the risk of broken string.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case of can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (9)
1. a kind of impregnation means of defence of electromagnet coil, which is characterized in that step is:
S1:The shelf for setting electromagnet coil is put into containing in dipping machine, is added and contains immersion liquid, liquid level is adjusted to and electromagnetism ferrous bobbin
Bottom is concordant, but may not exceed shelf top, and liquid level keeps concordant with electromagnet reel bottom and maintain, then allows under liquid level
Electromagnet coil was just moistened in drop, decline, which is the liquid level in being vacuumized containing immersion liquid；
S2：After vacuumizing, return-air 2-3 times, interval time 6-8 second is subject to liquid level without apparent bubble, maintains 30-40 seconds, Hui Hao
After gas, it is impregnated under vacuum；
S3：It bleeds off and contains immersion liquid, vacuumize, maintain vacuum state 1 minute；
S4：After maintaining vacuum state, jig one end to be lifted, jig is allowed to tilt, slight jitter is shaked off containing immersion liquid, drip-dry, until
Electromagnet coil is there is no subject under impregnation drop, during drip-dry, must use and shake and the calico of pad sponge is by electromagnet coil
Top is removed containing immersion liquid, and diluent is brushed on calico, is repeated several times, 2-5 minutes each, can be removed and be contained depending on curdled appearance containing immersion liquid
Subject to immersion liquid, until top is without apparent flowing until containing immersion liquid；
S5：By the electromagnet coil of drip-dry in oven for baking to dry.
2. the impregnation means of defence of electromagnet coil according to claim 1, which is characterized in that described all for E962 containing immersion liquid
Vertical water is 1-3 by volume with diluent X7:1 preparation obtains.
3. the impregnation means of defence of electromagnet coil according to claim 2, which is characterized in that the concentration ratio containing immersion liquid
Weight is to be measured using No. 4 cups of Cai's grace, and the cutout time is 16-20 seconds.
4. the impregnation means of defence of electromagnet coil according to claim 1, which is characterized in that liquid level described in S1 steps with
It is 8-10 seconds that electromagnet reel bottom, which is concordantly held time,.
5. the impregnation means of defence of electromagnet coil according to claim 1, which is characterized in that vacuum gas described in S2 steps
Pressure is 68-70KPa, and the impregnation time is 2 minutes.
6. the impregnation means of defence of electromagnet coil according to claim 1, which is characterized in that described in S4 steps when drip-dry
Between be 12-18 minutes.
7. the impregnation means of defence of electromagnet coil according to claim 1, which is characterized in that toast temperature described in S5 steps
Degree is 55-65 DEG C, and baking time is 10 hours.
8. the impregnation means of defence of electromagnet coil according to claim 1, which is characterized in that when being toasted described in S5 steps
Electromagnet coil underlay brushes the calico or oil-Absorbing Sheets of diluent, or uses padded jig frame.
9. a kind of impregnation means of defence of any one of claim 1-8 electromagnet coils has anticorrosion, control temperature liter
High purposes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037534.5A CN106683868B (en) | 2017-01-18 | 2017-01-18 | A kind of impregnation means of defence of electromagnet coil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037534.5A CN106683868B (en) | 2017-01-18 | 2017-01-18 | A kind of impregnation means of defence of electromagnet coil |
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| CN106683868A CN106683868A (en) | 2017-05-17 |
| CN106683868B true CN106683868B (en) | 2018-09-18 |
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| CN101651035A (en) * | 2009-08-07 | 2010-02-17 | 昆山恒艺电器有限公司 | Improved structure of immersion paint rack |
| CN101967267A (en) * | 2010-08-26 | 2011-02-09 | 上海同立电工材料有限公司 | Impregnating resin applied to wind driven generator insulating vacuum pressure impregnating treatment and impregnating method |
| CN103208361A (en) * | 2013-03-29 | 2013-07-17 | 徐州格利尔科技有限公司 | Transformer vacuum paint-dipping process |
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| JPH0767301A (en) * | 1993-08-26 | 1995-03-10 | Toshiba Corp | Insulation processing for winding of rotary electric machine |
| CN103762071A (en) * | 2013-12-31 | 2014-04-30 | 江苏有能电力自动化有限公司 | Foil type capacitive coil sintering process |
| CN105429399A (en) * | 2014-09-11 | 2016-03-23 | 无锡杨市表面处理科技有限公司 | Motor varnishing method |
| CN105097272B (en) * | 2015-09-11 | 2017-03-08 | 中变集团上海变压器有限公司 | A kind of dry-type transformer coil vacuum pressure formula paint-dipping process |
| CN105140013B (en) * | 2015-09-23 | 2017-11-21 | 江苏宏源电气有限责任公司 | The lacquer spraying technique of oil-filled transformer corrugated tank |
| CN105655123B (en) * | 2016-04-14 | 2017-11-17 | 陈世敏 | Use the technique of the manufacture high temperature resistant coil of the device of manufacture high temperature resistant coil |
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2017
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651035A (en) * | 2009-08-07 | 2010-02-17 | 昆山恒艺电器有限公司 | Improved structure of immersion paint rack |
| CN101967267A (en) * | 2010-08-26 | 2011-02-09 | 上海同立电工材料有限公司 | Impregnating resin applied to wind driven generator insulating vacuum pressure impregnating treatment and impregnating method |
| CN103208361A (en) * | 2013-03-29 | 2013-07-17 | 徐州格利尔科技有限公司 | Transformer vacuum paint-dipping process |
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