CN108428519A - A kind of painting method of Inverter fed motor enamelled wire insulated paint - Google Patents
A kind of painting method of Inverter fed motor enamelled wire insulated paint Download PDFInfo
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- CN108428519A CN108428519A CN201810172177.8A CN201810172177A CN108428519A CN 108428519 A CN108428519 A CN 108428519A CN 201810172177 A CN201810172177 A CN 201810172177A CN 108428519 A CN108428519 A CN 108428519A
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- paint
- paint film
- film thickness
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- middle layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/065—Insulating conductors with lacquers or enamels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/16—Insulating conductors or cables by passing through or dipping in a liquid bath; by spraying
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a kind of painting methods of Inverter fed motor enamelled wire insulated paint.Pass through sink through being cleaned by ultrasonic the metallic conductor drawn, coat polyester priming paint, nano particle/polyester-imide middle layer paint, polyamides amine amide finishing coat successively from bottom to top again, it is dried when applying, 450 DEG C ~ 550 DEG C of stoving temperature, conductor line 40 ~ 100m/min of speed, priming paint apply 3, account for the 20 ~ 25% of total paint film thickness, middle layer and apply 3, it accounts for the 50 ~ 60% of total paint film thickness, finishing coat and applies 3, account for the 20 ~ 25% of total paint film thickness.The present invention improves conductive surface finish using ultrasonic cleaning, improves the caking ability of paint film and conductor；Heat treatment improves mobility, the uniformity of paint solution, and paint film is uniform, pin-free；The selection of stoving temperature increases the wettability of paint film, increases adhesion firmness of the paint film on conductor, improves wear-resisting property；Technique is dried when applying and improves japanning efficiency, and the stress concentration for avoiding inorganic nanoparticles reunion from causing improves quality of enamelled wire.
Description
Technical field
The present invention relates to a kind of processing technologys of Inverter fed motor enameled wire, especially the coating side of Inverter fed motor enamelled wire insulated paint
Method.
Background technology
The insulating layer of traditional enameled wire is made of high molecular material, and under high-frequency and high-voltage operating mode, external electrical field intensity surmounts
Partial ionization occurs for critical field strength, the gas around insulating materials, and with electric discharge phenomena, the factors such as electricity, heat, machinery and environment
Coupling cause insulate damage layer.Silica, aluminium oxide bond energy be higher than polymer, have higher thermal stability,
Inoxidizability.Space charge in a large amount of equally distributed nano particle disperses insulating layer, has been reduced or eliminated because of local electricity
The stress of the uneven generation in field, improves anti-high-frequency impulse peak voltage ability, greatly improves the corona-resistance property of enameled wire.
But existing insulated paint coating processes are difficult to control the uniformity of nano inorganic particle/insulated paint, and inorganic particle is easily inclined
Analysis reunite, cause enamelled wire surface uneven, cause paint tumor, hemp skin, pimple the problems such as, cause enameled wire corona-resistance property and
Breakdown voltage reduces.
Invention content
The present invention provides a kind of painting method of Inverter fed motor enamelled wire insulated paint, using the method for lacquering of the present invention, can carry
Adhesion firmness of the high paint film on conductor eliminates the pin hole on paint film, improves the insulation performance of enameled wire.
To achieve the above object, the painting method of enamelled wire insulated paint of the invention, includes the following steps：
The first step：It is cleaned by ultrasonic：The metallic conductor drawn is drawn to sink with guide wheel and is cleaned by ultrasonic；
Second step：Coating bakes：Cleaned metallic conductor is passed through into paint solution from bottom to top, coats polyester priming paint, nanometer successively
Particle/polyester-imide middle layer paint, polyamides amine amide finishing coat are dried when applying.
Wherein, in the first step, it is cleaned by ultrasonic technique by adjusting ultrasonic frequency, so that conductive surface is purified, ultrasonic wave
Frequency is 50 ~ 100kHz.
Wherein, in second step, it with conductor line speed is 40 that stoving temperature in technique is dried when applying, which is 450 DEG C ~ 550 DEG C,
~100m/min。
Wherein, in second step, priming paint coating 3 accounts for the 20 ~ 25% of total paint film thickness；Middle layer paint coating 3 accounts for total
The 50 ~ 60% of paint film thickness；Finishing coat coating 3, accounts for the 20 ~ 25% of total paint film thickness.
Compared with prior art, remarkable advantage of the present invention：（1）It is cleaned by ultrasonic in technique in conductor, due to ultrasonic activation
Frequency is high, vibration is uniform and the cavitation effect of ultrasonic wave makes conductive surface purify, and improves conductive surface finish, and insulated paint is easy
It is adhered on conductor, improves the caking ability of paint film and conductor；（2）The present invention by while apply while dry technique to nano inorganic particle/
Polyester-imide middle layer paint is heat-treated, and changes stoving temperature and conductor line speed to regulate and control the heat treatment temperature of middle layer paint
Degree and the time, make nano silicon dioxide, alumina particle nodularization, be uniformly distributed, improve mobility, the uniformity of paint solution, and
Enameled wire enamelled coating after japanning is uniform, pin-free phenomenon；（3）Stoving temperature increases the wettability of paint film, increases paint film and is leading
Adhesion firmness on body improves wear-resisting property；（4）Technique is dried when applying and improves japanning efficiency, avoids inorganic nanoparticles
The stress concentration that reunion causes improves quality of enamelled wire.
Description of the drawings
Fig. 1 is the flow chart of Inverter fed motor enamelled wire insulated paint coating processes of the present invention.
Fig. 2 is corona-resistant wire enamel environmental microbes prepared by the embodiment of the present invention 1.
Specific implementation mode
The coating processes of Inverter fed motor enamelled wire insulated paint of the present invention are shown in Fig. 1.
Embodiment 1
The first step：It is cleaned by ultrasonic
The copper conductor drawn is drawn to sink with guide wheel, 50kHz supersonic frequencies is chosen and is cleaned.
Second step：Coating bakes
Cleaned copper conductor is passed through into paint solution from bottom to top, coats polyester priming paint, nano particle/polyester-imide middle layer successively
Paint, polyamides amine amide finishing coat are dried when applying, and the surface topography of the Inverter fed motor enamelled wire insulated paint of preparation is shown in Fig. 2.Wherein, it bakes
500 DEG C of temperature and conductor line speed 80m/min, priming paint apply 3, account for the 20% of total paint film thickness, middle layer and apply 3, account for total paint
Film thickness 60%, finishing coat apply 3, account for the 20% of total paint film thickness.
Room temperature breakdown voltage is 13600V；155 ± 2 DEG C, 20kHz, crest voltage 3kV, under the conditions of pulse rises 100ns,
Inverter fed motor time ＞ 48h.
Embodiment 2
The first step：It is cleaned by ultrasonic
The copper conductor drawn is drawn to sink with guide wheel, 60kHz supersonic frequencies is chosen and is cleaned.
Second step：Coating bakes
Cleaned copper conductor is passed through into paint solution from bottom to top, coats polyester priming paint, nano particle/polyester-imide middle layer successively
Paint, polyamides amine amide finishing coat are dried when applying.Wherein, 510 DEG C of stoving temperature and conductor line speed 80m/min, priming paint apply 3,
It accounts for the 20% of total paint film thickness, middle layer and applies 3, account for the 60% of total paint film thickness, finishing coat and apply 3, account for the 20% of total paint film thickness.
Room temperature breakdown voltage is 14100V；155 ± 2 DEG C, 20kHz, crest voltage 3kV, under the conditions of pulse rises 100ns,
Inverter fed motor time ＞ 48h.
Embodiment 3
The first step：It is cleaned by ultrasonic
The copper conductor drawn is drawn to sink with guide wheel, 60kHz supersonic frequencies is chosen and is cleaned.
Second step：Coating bakes
Cleaned copper conductor is passed through into paint solution from bottom to top, coats polyester priming paint, nano particle/polyester-imide middle layer successively
Paint, polyamides amine amide finishing coat are dried when applying.Wherein, 510 DEG C of stoving temperature and conductor line speed 80m/min, priming paint apply 3,
It accounts for the 25% of total paint film thickness, middle layer and applies 3, account for the 50% of total paint film thickness, finishing coat and apply 3, account for the 25% of total paint film thickness.
Room temperature breakdown voltage is 13100V；155 ± 2 DEG C, 20kHz, crest voltage 3kV, under the conditions of pulse rises 100ns,
Inverter fed motor time ＞ 47h.
Embodiment 4
The first step：It is cleaned by ultrasonic
The copper conductor drawn is drawn to sink with guide wheel, 60kHz supersonic frequencies is chosen and is cleaned.
Second step：Coating bakes
Cleaned copper conductor is passed through into paint solution from bottom to top, coats polyester priming paint, nano particle/polyester-imide middle layer successively
Paint, polyamides amine amide finishing coat are dried when applying.Wherein, 520 DEG C of stoving temperature and conductor line speed 80m/min, priming paint apply 3,
It accounts for the 25% of total paint film thickness, middle layer and applies 3, account for the 50% of total paint film thickness, finishing coat and apply 3, account for the 25% of total paint film thickness.
Room temperature breakdown voltage is 13000V；155 ± 2 DEG C, 20kHz, crest voltage 3kV, under the conditions of pulse rises 100ns,
Inverter fed motor time ＞ 46h.
Embodiment 5
The first step：It is cleaned by ultrasonic
The copper conductor drawn is drawn to sink with guide wheel, 80kHz supersonic frequencies is chosen and is cleaned.
Second step：Coating bakes
Cleaned copper conductor is passed through into paint solution from bottom to top, coats polyester priming paint, nano particle/polyester-imide middle layer successively
Paint, polyamides amine amide finishing coat are dried when applying.Wherein, 500 DEG C of stoving temperature and conductor line speed 80m/min, priming paint apply 3,
It accounts for the 20% of total paint film thickness, middle layer and applies 3, account for the 60% of total paint film thickness, finishing coat and apply 3, account for the 20% of total paint film thickness.
Room temperature breakdown voltage is 13900V；155 ± 2 DEG C, 20kHz, crest voltage 3kV, under the conditions of pulse rises 100ns,
Inverter fed motor time ＞ 48h.
Embodiment 6
The first step：It is cleaned by ultrasonic
The copper conductor drawn is drawn to sink with guide wheel, 80kHz supersonic frequencies is chosen and is cleaned.
Second step：Coating bakes
Cleaned copper conductor is passed through into paint solution from bottom to top, coats polyester priming paint, nano particle/polyester-imide middle layer successively
Paint, polyamides amine amide finishing coat are dried when applying.Wherein, 550 DEG C of stoving temperature and conductor line speed 100m/min, priming paint apply 3
Road accounts for the 25% of total paint film thickness, middle layer and applies 3, accounts for the 50% of total paint film thickness, finishing coat and applies 3, accounts for the 25% of total paint film thickness.
Room temperature breakdown voltage is 10900V；155 ± 2 DEG C, 20kHz, crest voltage 3kV, under the conditions of pulse rises 100ns,
Inverter fed motor time ＞ 42h.
Embodiment 7
The first step：It is cleaned by ultrasonic
The copper conductor drawn is drawn to sink with guide wheel, 80kHz supersonic frequencies is chosen and is cleaned.
Second step：Coating bakes
Cleaned copper conductor is passed through into paint solution from bottom to top, coats polyester priming paint, nano particle/polyester-imide middle layer successively
Paint, polyamides amine amide finishing coat are dried when applying.Wherein, 500 DEG C of stoving temperature and conductor line speed 90m/min, priming paint apply 3,
It accounts for the 25% of total paint film thickness, middle layer and applies 3, account for the 50% of total paint film thickness, finishing coat and apply 3, account for the 25% of total paint film thickness.
Room temperature breakdown voltage is 13200V；155 ± 2 DEG C, 20kHz, crest voltage 3kV, under the conditions of pulse rises 100ns,
Inverter fed motor time ＞ 47h.
Embodiment 8
The first step：It is cleaned by ultrasonic
The copper conductor drawn is drawn to sink with guide wheel, 80kHz supersonic frequencies is chosen and is cleaned.
Second step：Coating bakes
Cleaned copper conductor is passed through into paint solution from bottom to top, coats polyester priming paint, nano particle/polyester-imide middle layer successively
Paint, polyamides amine amide finishing coat are dried when applying.Wherein, 520 DEG C of stoving temperature and conductor line speed 60m/min, priming paint apply 3,
It accounts for the 22% of total paint film thickness, middle layer and applies 3, account for the 58% of total paint film thickness, finishing coat and apply 3, account for the 20% of total paint film thickness.
Room temperature breakdown voltage is 14100V；155 ± 2 DEG C, 20kHz, crest voltage 3kV, under the conditions of pulse rises 100ns,
Inverter fed motor time ＞ 48h.
Embodiment 9
The first step：It is cleaned by ultrasonic
The copper conductor drawn is drawn to sink with guide wheel, 80kHz supersonic frequencies is chosen and is cleaned.
Second step：Coating bakes
Cleaned copper conductor is passed through into paint solution from bottom to top, coats polyester priming paint, nano particle/polyester-imide middle layer successively
Paint, polyamides amine amide finishing coat are dried when applying.Wherein, 515 DEG C of stoving temperature and conductor line speed 40m/min, priming paint apply 3,
It accounts for the 25% of total paint film thickness, middle layer and applies 3, account for the 50% of total paint film thickness, finishing coat and apply 3, account for the 25% of total paint film thickness.
Room temperature breakdown voltage is 13800V；155 ± 2 DEG C, 20kHz, crest voltage 3kV, under the conditions of pulse rises 100ns,
Inverter fed motor time ＞ 47h.
Embodiment 10
The first step：It is cleaned by ultrasonic
The copper conductor drawn is drawn to sink with guide wheel, 100kHz supersonic frequencies is chosen and is cleaned.
Second step：Coating bakes
Cleaned copper conductor is passed through into paint solution from bottom to top, coats polyester priming paint, nano particle/polyester-imide middle layer successively
Paint, polyamides amine amide finishing coat are dried when applying.Wherein, 520 DEG C of stoving temperature and conductor line speed 50m/min, priming paint apply 3,
It accounts for the 20% of total paint film thickness, middle layer and applies 3, account for the 61% of total paint film thickness, finishing coat and apply 3, account for the 19% of total paint film thickness.
Room temperature breakdown voltage is 14300V；155 ± 2 DEG C, 20kHz, crest voltage 3kV, under the conditions of pulse rises 100ns,
Inverter fed motor time ＞ 48h.
Embodiment 11
The first step：It is cleaned by ultrasonic
The copper conductor drawn is drawn to sink with guide wheel, 50kHz supersonic frequencies is chosen and is cleaned.
Second step：Coating bakes
Cleaned copper conductor is passed through into paint solution from bottom to top, coats polyester priming paint, nano particle/polyester-imide middle layer successively
Paint, polyamides amine amide finishing coat are dried when applying.Wherein, 480 DEG C of stoving temperature and conductor line speed 50m/min, priming paint apply 3,
It accounts for the 27% of total paint film thickness, middle layer and applies 3, account for the 52% of total paint film thickness, finishing coat and apply 3, account for the 21% of total paint film thickness.
Room temperature breakdown voltage is 12900V；155 ± 2 DEG C, 20kHz, crest voltage 3kV, under the conditions of pulse rises 100ns,
Inverter fed motor time ＞ 46h.
Embodiment 12
The first step：It is cleaned by ultrasonic
The copper conductor drawn is drawn to sink with guide wheel, 90kHz supersonic frequencies is chosen and is cleaned.
Second step：Coating bakes
Cleaned copper conductor is passed through into paint solution from bottom to top, coats polyester priming paint, nano particle/polyester-imide middle layer successively
Paint, polyamides amine amide finishing coat are dried when applying.Wherein, 495 DEG C of stoving temperature and conductor line speed 80m/min, priming paint apply 3,
It accounts for the 22% of total paint film thickness, middle layer and applies 3, account for the 60% of total paint film thickness, finishing coat and apply 3, account for the 18% of total paint film thickness.
Room temperature breakdown voltage is 13200V；155 ± 2 DEG C, 20kHz, crest voltage 3kV, under the conditions of pulse rises 100ns,
Inverter fed motor time ＞ 47h.
Comparative example 1
Copper conductor without ultrasonic cleaning is directly over paint solution, coats polyester priming paint successively, among nano particle/polyester-imide
Layer paint, polyamides amine amide finishing coat, dry when applying.Wherein, 500 DEG C of stoving temperature and conductor line speed 80m/min, priming paint apply 3
Road accounts for the 22% of total paint film thickness, middle layer and applies 3, accounts for the 60% of total paint film thickness, finishing coat and applies 3, accounts for the 18% of total paint film thickness.
Because conductor is without being cleaned by ultrasonic, surface depends on impurity, and japanning is uneven, and room temperature breakdown voltage is 8200V；155
± 2 DEG C, 20kHz, crest voltage 3kV, under the conditions of pulse rises 100ns, Inverter fed motor time ＞ 25h.
Comparative example 2
The copper conductor of ultrasonic cleaning is passed through into paint solution, polyester priming paint is coated successively, nano particle/polyester-imide middle layer paint, gathers
Amide amide finishing coat is dried when applying.Wherein, 300 DEG C of stoving temperature and conductor line speed 40m/min, priming paint apply 3, account for total
Paint film thickness 22%, middle layer apply 3, account for total paint film thickness 60%, finishing coat apply 3, account for the 18% of total paint film thickness.
Because stoving temperature is too low, nano particle/polyester-imide middle layer paint heat treatment temperature is too low, and nano particle cannot be equal
Even distribution, paint uneven, room temperature breakdown voltage 6300V；155 ± 2 DEG C, 20kHz, crest voltage 3kV, pulse rises 100ns
Under the conditions of, Inverter fed motor time ＞ 12h.
Comparative example 3
The copper conductor of ultrasonic cleaning is passed through into paint solution, polyester priming paint is coated successively, nano particle/polyester-imide middle layer paint, gathers
Amide amide finishing coat is dried when applying.Wherein, 500 DEG C of stoving temperature and conductor line speed 200m/min, priming paint apply 3, account for total
Paint film thickness 22%, middle layer apply 3, account for total paint film thickness 60%, finishing coat apply 3, account for the 18% of total paint film thickness.
Because conductor line speed is excessive, nano particle/polyester-imide middle layer paint heat treatment time is too short, and nano particle is not
It can be uniformly distributed, paint uneven, room temperature breakdown voltage 7900V；155 ± 2 DEG C, 20kHz, crest voltage 3kV, pulse rises
Under the conditions of 100ns, Inverter fed motor time ＞ 18h.
Claims (4)
1. the painting method of Inverter fed motor enamelled wire insulated paint, which is characterized in that the described method comprises the following steps：
The metallic conductor drawn is drawn to sink and is cleaned by ultrasonic by the first step；
Cleaned metallic conductor is coated polyester priming paint, nano particle/polyester-imide middle layer by second step successively from bottom to top
Paint, polyamides amine amide finishing coat, side coated side bake.
2. painting method according to claim 1, which is characterized in that in the first step, the frequency of ultrasonic cleaning is 50 ~
100kHz。
3. painting method according to claim 1, which is characterized in that in second step, stoving temperature is 450 DEG C ~ 550 DEG C,
Conductor line speed is 40 ~ 100m/min.
4. painting method according to claim 1, which is characterized in that in second step, priming paint coating 3 accounts for total paint film thickness
20 ~ 25%；Middle layer paint coating 3, accounts for the 50 ~ 60% of total paint film thickness；Finishing coat coating 3, account for total paint film thickness 20 ~
25%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810172177.8A CN108428519A (en) | 2018-03-01 | 2018-03-01 | A kind of painting method of Inverter fed motor enamelled wire insulated paint |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810172177.8A CN108428519A (en) | 2018-03-01 | 2018-03-01 | A kind of painting method of Inverter fed motor enamelled wire insulated paint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114628090A (en) * | 2022-03-17 | 2022-06-14 | 苏州东特绝缘科技有限公司 | Production process of colored polyester imide enameled wire for voice coil |
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| US20050042451A1 (en) * | 1999-07-17 | 2005-02-24 | Arjona Alejandro Rafael Chio | Magnet wire for motors coupled to speed variators of improved resistance to voltage peaks and manufacturing process of the same |
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Application publication date: 20180821 |
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