CN106683868A - Electromagnet coil impregnation protection method - Google Patents
Electromagnet coil impregnation protection method Download PDFInfo
- Publication number
- CN106683868A CN106683868A CN201710037534.5A CN201710037534A CN106683868A CN 106683868 A CN106683868 A CN 106683868A CN 201710037534 A CN201710037534 A CN 201710037534A CN 106683868 A CN106683868 A CN 106683868A
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- CN
- China
- Prior art keywords
- electromagnet coil
- impregnation
- defence
- immersion
- liquid level
- 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.)
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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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses an electromagnet coil impregnation protection method which includes the steps: placing a frame with a laid electromagnet coil into an impregnation machine, adding impregnation liquid, adjusting the liquid level to be flush with the bottom of an electromagnetic reel, keeping the liquid level flush with the bottom of the electromagnetic reel for 8-10 seconds, pumping vacuum, returning air for 2-3 times at the time interval of 6-8 seconds, keeping air returning for 30-40 seconds, and performing impregnation for 2 minutes in 68-70 KPa vacuum after returning the air; draining the impregnation liquid, pumping vacuum, keeping the vacuum state for 1 minute, lifting up one end of a jig after impregnation, inclining and slightly shaking the jig, shaking off the impregnation liquid, drip-drying the electromagnet coil for 12-18 minutes, removing the impregnation liquid during drip-drying until no obviously flowing impregnation liquid remains at the top of the electromagnet coil, and baking the drip-dried electromagnet coil in an oven at the temperature of 55-65 DEG C for 10 hours until the electromagnet coil is dry. The electromagnet coil impregnation protection method has the functions of preventing corrosion and controlling temperature rise.
Description
Technical field
The present invention relates to the means of defence of electromagnet coil, more particularly to a kind of impregnation means of defence 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 of arc discharge with connect or coil because be powered
Rear abnormal high temperature and after causing magnet wire insulation impaired, nitrite produces sometimes glaucous corrosion life in coil inside
Into thing, coil breakage is caused.
As the preventive means for opening frame electromagnet coil and air insulated, frequently with overall sealing adhesive process, but this for
It is fatal for small size, powerful electric magnet, because this can cause the radiating condition of coil drastically to deteriorate, electric magnet meeting
Burn because temperature rise is too high.
The content of the invention
It is an object of the invention to provide a kind of impregnation protection with anticorrosion, the elevated electromagnet coil of control temperature
Method.
For achieving the above object, the invention provides a kind of impregnation means of defence of electromagnet coil, it is characterised in that step
Suddenly it is:
S1:The shelf for setting electromagnet coil is put into containing in dipping machine, is added and is contained immersion, liquid level is adjusted to and electric magnet
Reel bottom is concordant, but may not exceed shelf top.Liquid level keeps concordant with electric magnet reel bottom and maintain, then allows liquid level
Drop to and just moistened electromagnet coil, the position is the liquid level in evacuation containing immersion；
S2：After evacuation, return-air 2-3 time, is defined at 6-8 seconds interval time by liquid level without obvious bubble, maintains the 30-40 seconds,
Return it is aerobic after, be impregnated with vacuo；
S3：Bleed off containing immersion, evacuation, maintain vacuum state 1 minute；
S4：After maintaining vacuum state, tool one end is lifted, allows tool to incline, slight jitter is shaked off containing immersion, drip-dry,
It is defined under impregnation drop until electromagnet coil there is no longer, during drip-dry, must uses and shake and pad the calico of sponge by electric magnet
Coil top is removed containing immersion, and brush diluent on calico is repeated several times, each 2-5 minutes, depending on curdled appearance containing immersion, can be clear
Except being defined containing immersion, until top is without till substantially flowing contains immersion；
S5：By the electromagnet coil of drip-dry in oven for baking to dry.
Described is by volume 1-3 with diluent X7 for E962 varnish containing immersion:1 preparation is obtained.
The concentration proportion containing immersion is that the cutout time is the 16-20 seconds using No. 4 cup measurements of Cai's grace.
Liquid level described in S1 steps is concordant with electric magnet reel bottom to hold time as the 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 toasting described in S5 steps, or is controlled using padded
Tool frame.
The impregnation means of defence of the electromagnet coil has anticorrosion, the elevated purposes of control temperature.
In electromagnet coil impregnation step S2 of the present invention after evacuation, return-air 2-3 time is conducive to being soaked completely containing immersion
Thoroughly electromagnet coil, allows the copper cash of bottom to be dipped into containing immersion.
Bleed off containing immersion, evacuation in electromagnet coil of the present invention impregnation step S3, maintain vacuum state be in order to
Prevent from being lumpd containing immersion after product baking or generation bubble causes bad order, size is bad.
Liquid level is concordant with electric magnet reel bottom in electromagnet coil impregnation step S1 of the present invention holds time as 8-
10 seconds, the horizontal level containing immersion is facilitated deciding on, prevented containing immersion higher than bobbin, prevention is pacified containing the iron core that immersion enters bobbin
Dress 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 easily causes framework deformation higher than 10h, and baking temperature is less than 55 DEG C or baking time is low
Can not the baking containing immersion is solid in 10h.
It is of the present invention both to have ensure that filling part containing immersion penetrates into coil inside, avoided entering circle containing immersion again containing soaking technology
Hole, effectively prevent because causing iron core remarkable action into after circular hole containing immersion, electric magnet cannot normal work problem.
The impregnation means of defence of electromagnet coil of the present invention is for process with air pressure capable of being increased and has the rational dwell time, can allow
It is fully infiltrated between coil and capacity plastics reel containing immersion or coil turn-to-turn air gap, it is ensured that the isolation completely of coil and air, it is to avoid paint
Envelope curve is corroded the phenomenon of broken string.It is of the present invention to solve coil very well with air exclusion and control temperature rising containing soaking technology
Problem, solve puzzlement industry, big problem insurmountable always.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is intended to for explaining the present invention, and can not
It is interpreted as limitation of the present invention.Unreceipted particular technique or condition person in embodiment, according to described by document in the art
Technology or condition or carry out according to product description.Agents useful for same or the unreceipted production firm person of instrument, being to lead to
Cross city available from conventional products.
Embodiment 1：Electromagnet coil impregnation protection
Containing immersion be E962 varnish and diluent X7 be by volume 1-3:1 preparation is obtained.
S1：The shelf for setting electromagnet coil is put into containing in dipping machine, is added and is contained immersion, liquid level is adjusted to and electric magnet
Reel bottom is concordant, but may not exceed skeleton top.Liquid level keeps concordant with electric magnet reel bottom and after maintaining the 8-10 seconds
Allow liquid level to drop to again and just moistened electromagnet coil, the position is the liquid level in evacuation containing immersion；
S2：After evacuation, return-air 2-3 time, is defined at 6-8 seconds interval time by liquid level without obvious bubble, maintains the 30-40 seconds,
Return it is aerobic after, under vacuum 68-70KPa be impregnated with 2 minutes；
S3：Bleed off containing immersion, evacuation, maintain vacuum state 1 minute；
S4：After impregnation, tool one end is lifted, allow tool to incline, slight jitter is shaked off containing immersion, and drip-dry 12-18 divides
Clock, is defined until electromagnet coil there is no longer under impregnation drop, during drip-dry, must use and shake and pad the calico of sponge by electromagnetism
Iron coil top is removed containing immersion, and brush diluent on calico is repeated several times, each 2-5 minutes, depending on curdled appearance containing immersion, energy
Removing is defined containing immersion, until top is without till substantially flowing contains immersion；
S5：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
Hour.
Embodiment 2：Checking test
Electric magnet：Respectively embodiment 1 processes electric magnet F levels 10, the electric magnet F of coating processing containing the immersion levels 10 for obtaining
Part, without processing electric magnet F levels 10.Before mold corrosion test is carried out, 55 DEG C of high temperature, the friendship of 25 DEG C of low temperature of 6 days is first carried out
Become damp heat test to process (according to the cyclic damp heat test method that GB/T 2423.4 is required).
Test method：
1.. first and recorded with the resistance value of circuit tester measurement electric magnet before experiment；
2.. will improve in Martin's culture medium (i.e. mycotic culture liquid) suction injection needleses pipe, and draw along electric magnet
It is injected into (requiring injection volume in electric magnet at the gap of line switch-on coil：5ml/ is only)；
3.. the electric magnet of injection improvement Martin's culture medium is placed in high/low temperature Alternate hot and humid experimental box and (is required：Temperature
25 DEG C of humidity 80%, 3 days/cycle)；
4.. after a cycle, electric magnet taking-up in kind using circuit tester test resistance value, and is recorded；
5.. after resistance value test passes, 220V DC, test action are passed through one by one；
6.. after the completion of the test that is powered, using circuit tester test resistance value again, and record；
7.. repeat the 3. step, carry out new round experimental period；
8.. as being found abnormal electric magnet in the detection, analysis is disassembled, determine bad phenomenon reason.
The electric magnet number of packages experimental result that is corroded is shown in Table 1.
Antiseptic effect experimental result table (part) of the handling process of table 1 to electromagnet coil
As known from Table 1, electromagnet coil was tested Jing after 90 day test period, there are 3 because of mycete without F 10 samples of level are processed
The phenomenon of corrosion wire breakage, the F of coating processing containing immersion 10 samples of level have 2 because of the phenomenon of mold corrosion broken string, take embodiment 1
The electric magnet that process is obtained all is remained intact.
Sample containing immersion coating processing there is also enamel-covered 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 without air pressure operation, although simple, but nothing
Method ensures all of air gap of closing, and this just creates condition to the infiltration of air.The infiltration of air means invading for nitrite
Enter, enamel-covered wire can be caused to be corroded the risk of broken string.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art is in the principle and objective without departing from the present invention
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (9)
1. the impregnation means of defence of a kind of electromagnet coil, it is characterised in that step is:
S1:The shelf for setting electromagnet coil is put into containing in dipping machine, is added and is contained immersion, liquid level is adjusted to and electromagnetism ferrous bobbin
Bottom is concordant, but may not exceed shelf top, and liquid level keeps concordant with electric magnet reel bottom and maintains, then allows under liquid level
Electromagnet coil was just moistened in drop, decline, and the position is the liquid level in evacuation containing immersion；
S2：After evacuation, return-air 2-3 time, is defined at 6-8 seconds interval time by liquid level without obvious bubble, maintains 30-40 seconds, Hui Hao
After gas, it is impregnated with vacuo；
S3：Bleed off containing immersion, evacuation, maintain vacuum state 1 minute；
S4：After maintaining vacuum state, tool one end is lifted, allow tool to incline, slight jitter is shaked off containing immersion, drip-dry, until
Electromagnet coil there is no longer and is defined under impregnation drop, during drip-dry, must use and shake and pad the calico of sponge by electromagnet coil
Top is removed containing immersion, and diluent is brushed with calico, is repeated several times, each 2-5 minutes, can be removed depending on curdled appearance containing immersion and be contained
Immersion is defined, until top is without till substantially flowing contains immersion；
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, it is characterised in that described is that E962 is all containing immersion
Vertical water is by volume 1-3 with diluent X7:1 preparation is obtained.
3. the impregnation means of defence of electromagnet coil according to claim 2, it is characterised in that the concentration ratio containing immersion
Weight is that the cutout time is the 16-20 seconds using No. 4 cup measurements of Cai's grace.
4. the impregnation means of defence of electromagnet coil according to claim 1, it is characterised in that liquid level described in S1 steps with
Electric magnet reel bottom was concordantly held time as the 8-10 seconds.
5. the impregnation means of defence of electromagnet coil according to claim 1, it is characterised in that vacuum gas described in S2 steps
Press as 68-70KPa, the impregnation time is 2 minutes.
6. the impregnation means of defence of electromagnet coil according to claim 1, it is characterised in that described in S4 steps during drip-dry
Between be 12-18 minutes.
7. the impregnation means of defence of electromagnet coil according to claim 1, it is characterised in that temperature is toasted described in S5 steps
Spend for 55-65 DEG C, baking time is 10 hours.
8. the impregnation means of defence of electromagnet coil according to claim 1, it is characterised in that when toasting described in S5 steps
Electromagnet coil underlay brushes the calico or oil-Absorbing Sheets of diluent, or using padded tool frame.
9. the impregnation means of defence of electromagnet coil described in a kind of any one of claim 1-8 has anticorrosion, control temperature liter
High purposes.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106683868A true CN106683868A (en) | 2017-05-17 |
| CN106683868B CN106683868B (en) | 2018-09-18 |
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ID=58859669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710037534.5A Active CN106683868B (en) | 2017-01-18 | 2017-01-18 | A kind of impregnation means of defence of electromagnet coil |
Country Status (1)
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| JPH0767301A (en) * | 1993-08-26 | 1995-03-10 | Toshiba Corp | Insulation processing for winding of rotary electric machine |
| 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 |
| 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 |
| CN105097272A (en) * | 2015-09-11 | 2015-11-25 | 中变集团上海变压器有限公司 | Vacuum pressure paint-soaking process for dry-type transformer coil |
| CN105140013A (en) * | 2015-09-23 | 2015-12-09 | 江苏宏源电气有限责任公司 | Paint spraying process for corrugated oil tank of oil-immersed transformer |
| 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 |
| CN105655123A (en) * | 2016-04-14 | 2016-06-08 | 陈世敏 | Device and technology for producing high-temperature resistant coil |
-
2017
- 2017-01-18 CN CN201710037534.5A patent/CN106683868B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0767301A (en) * | 1993-08-26 | 1995-03-10 | Toshiba Corp | Insulation processing for winding of rotary electric machine |
| 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 |
| 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 |
| CN105097272A (en) * | 2015-09-11 | 2015-11-25 | 中变集团上海变压器有限公司 | Vacuum pressure paint-soaking process for dry-type transformer coil |
| CN105140013A (en) * | 2015-09-23 | 2015-12-09 | 江苏宏源电气有限责任公司 | Paint spraying process for corrugated oil tank of oil-immersed transformer |
| CN105655123A (en) * | 2016-04-14 | 2016-06-08 | 陈世敏 | Device and technology for producing high-temperature resistant coil |
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| Publication number | Publication date |
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| CN106683868B (en) | 2018-09-18 |
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