CN108878059A - The production method of ultra micro fine enamelled wire - Google Patents
The production method of ultra micro fine enamelled wire Download PDFInfo
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- CN108878059A CN108878059A CN201810676663.3A CN201810676663A CN108878059A CN 108878059 A CN108878059 A CN 108878059A CN 201810676663 A CN201810676663 A CN 201810676663A CN 108878059 A CN108878059 A CN 108878059A
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- wire rod
- copper bar
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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
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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
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
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- Application Of Or Painting With Fluid Materials (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
Abstract
The present invention provides a kind of production method of ultra micro fine enamelled wire, which includes：A, unwrapping wire selects the soft state copper bar of the 1.33MM of retracting to be placed on wire dispenser；B, the copper bar is drawn into the semi-finished product wire rod of 0.020MM by wire drawing；C, it cleans, the semi-finished product wire rod is cleaned；D, it anneals, continuous annealing is carried out to the semi-finished product wire rod using contactless method for annealing；E, it paints, painting wire enamel is carried out to the semi-finished product wire rod using felt japanning method；F, it bakes, the semi-finished product wire rod is evaporated and is solidified in oven；G, cooling, it is cooling by carrying out adverse current to the semi-finished product wire rod；H, oiling applies lubricant grease to the semi-finished product wire surface；I, take-up is wrapped on disk tool by the way that take-up is continuous by enameled wire, close, uniform.
Description
Technical field
The present invention relates to a kind of production methods of ultra micro fine enamelled wire.
Background technique
Enameled wire is a principal item of winding wire, is made of conductor and insulating layer two, after the annealed softening of bare wire,
Using multiple japanning, bake.But it produces and not only met the requirements of the standard, but also meet the product of customer requirement and do not allow
Easily, it is by raw material quality, technological parameter, production equipment, and the factors such as environment influence, therefore, the mass property of various enameled wires
It is different, but all have mechanical performance, chemical property, electrical property, the big performance of hot property four.Enameled wire refers to be made with insulated paint
For insulating coating, for the plain conductor of coiling electromagnetic coil, also referred to as electromagnetic wire.
Especially field of acoustics needs enameled wire extremely fine to make smaller voice coil.
Summary of the invention
In order to achieve the above objectives, the technical scheme adopted by the invention is that：Production technology includes the following steps：
A. unwrapping wire selects the soft state copper bar of the 1.33MM of retracting to be placed on unwrapping wire on unwrapping wire wire dispenser；
The copper bar of 1.33MM is drawn into the semi-finished product wire rod of 0.020MM by b. wire drawing by multiple wire drawing；
C. it cleans, the semi-finished product wire rod drawn is cleaned, the greasy dirt on surface is removed；
D. it anneals, continuous annealing is carried out to the semi-finished product wire rod in the lehr using contactless method for annealing, is moved back
The incoming line of stove is sealed using nitrogen sealing mode；
E. it paints, apply to the semi-finished product wire rod wire enamel of high solids content using felt japanning method；
F. it bakes, the semi-finished product wire rod is evaporated and is solidified in oven, wire rod outer layer is made to form paint film；
G. it cools down, adverse current cooling is carried out by air blower and cooler to the semi-finished product wire rod；
H. oiling applies lubricant grease to the semi-finished product wire surface, makes enameled wire energy high speed unwinding in winding process,
The lubricant grease includes 120# solvent naphtha 70-80%, 7# White Mineral Oil 8-10%, general lubricant agent 0.5-1%；
I. take-up is wrapped on disk tool by the way that take-up is continuous by enameled wire, close, uniform.
Further, the wire dispenser in the step a is Brush type wire dispenser, wire rod its most very much not extension at room temperature
Power is 15kg/mm2, and most very much not extending tension at 400 DEG C is 7kg/mm2；Most very much not extending tension at 460 DEG C is 4kg/
mm2；Most very much not extending tension at 500 DEG C is 2kg/mm2.
Further, the drawing process in the step b includes the following steps：
1. the copper bar is drawn into the embryo material of 0.8mm by middle machine drawing wire drawing；
2. the copper bar is drawn into the embryo material of 0.15mm by small machine drawing wire drawing；
3. the copper bar is drawn into the embryo material of 0.070mm by tiny machine drawing wire drawing；
4. the copper bar is drawn into the embryo material of 0.035mm by thin machine drawing wire drawing；
5. the copper bar is drawn into the embryo material of 0.020mm by fine machine drawing wire drawing；
Further, annealing furnace uses two sections of temperature controls in the step d, and first segment temperature is 310 DEG C, second segment temperature is
340℃。
Further, felt is 50~80mm at a distance from paint cylinder in the step e, and felt is at a distance from oven
200~250mm, the density of the felt are 0.25 gram/cc, and the wire enamel is acetal paint or polyurethane paint or gathers
One of which in ester imines paint or polyamidoimide.
Further, after forming coast of paint film in the step f, then repeated multiple times japanning and baking, interior point of the baker
For evaporating area and curing area, the evaporating area is to evaporate based on solvent, and the curing area is based on cured paint film.
The beneficial effects of the invention are as follows：Compared with prior art, the present invention has the following advantages that：1, using power-assisted roller pair
The control of tension has very great help, and the tension of enameled wire can be made to be significantly less than and do not extend tension, enameled wire gloss is preferable, wire rod
It is not easy bounce and doubling, is also not easy line and touches fire door；2, it uses nitrogen as protective gas, copper conductor at high temperature is made to get along well
Oxygen contact in air, uses nitrogen as protective gas, for relative vapor, the elongation of product is more preferable, and surface is more preferable, can have
Effect avoids generation copper oxide, to can guarantee the flexibility of enameled wire, thermal shock, heat aging performance；3, it is painted using felt
Method structure is simple and convenient to operate, loose, soft using felt, have as long as two sides for being clipped in conducting wire with felt clamping plate that felt is smooth
The characteristics of elasticity, crinosity hole, die hole is formed it into, paint extra on conducting wire is scraped off, absorbed, storage, conveyed by capillary phenomenon,
Paint solution is made up, uniform paint solution is coated on the surface of conducting wire, uses the insulation of the insulation paint vehicle replacement low-solid content of high solids content
Paint vehicle reduces the usage amount of solvent in insulated paint under the premise of not influencing enameled wire performance, reduces the discharge amount of exhaust gas,
Environment can be protected；4, adverse current cooling is carried out to line by air hose and cooler with air blower, line speed can be improved, improve production
Efficiency；5, use the lubricant grease include 120# gasoline 99.7%, atoleine 3/1000ths, product surface can be enhanced
Lubrication reduces coefficient of friction, meets the requirement of client's high speed unwinding, due to not using the paraffin of any solid-state or semisolid
Material, be not in material be precipitated and be attached on the pin hole of coil winding machine block pin hole the phenomenon that, to improve the life of client
Efficiency is produced, the precipitate and transfer of material of enamelled wire surface noresidue will not be shifted and be attached on the contact of coil, and lead to line
The phenomenon that failure that cannot be powered is scrapped is enclosed, thus the service life of extension coil, and the lubricant grease volatility is low.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution of the present invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
A kind of production method of ultra micro fine enamelled wire proposed by the present invention includes the following steps：
A. unwrapping wire, by the wire rod of retracting on wire dispenser unwrapping wire, and the front end of annealing furnace installation power-assisted roller carry out line
Material tension force, the wire dispenser be Brush type wire dispenser, wire rod at room temperature its most very much not extend tension be about 15kg/mm2,
Most very much not extending tension at 400 DEG C is about 7kg/mm2；Most very much not extending tension at 460 DEG C is 4kg/mm2；At 500 DEG C
Most very much not extending tension is 2kg/mm2.Had very great help using power-assisted roller to the control of tension, the tension of enameled wire can be made to want
It is significantly less than and does not extend tension, enameled wire gloss is preferable, and wire rod is not easy bounce and doubling, is also not easy line and touches fire door.
B. it anneals, the purpose of annealing is to pass through conductor due to the conducting wire being hardened during die drawn by lattice variations
Certain temperature heating, restores the pliability that technique requires, while removing conductor table in drawing process after resetting molecular grating
The remaining lubricant in face, greasy dirt etc., make conducting wire be easy to paint, and guarantee the quality of enameled wire.Most importantly guarantee that enameled wire exists
As having suitable pliability and elongation in the use process of winding, while helping to improve conductivity.Using contactless
Method for annealing carries out continuous annealing to the wire rod in step a in the lehr, and the annealing furnace uses two sections of temperature controls, first segment temperature
Degree is 300 DEG C, and second segment temperature is 330 DEG C, and the incoming line of the annealing furnace is sealed using nitrogen sealing mode, uses nitrogen
As protective gas, makes the oxygen contact in copper conductor discord air at high temperature, use nitrogen as protective gas, relative vapor
For, the elongation of product is more preferable, and surface is more preferable, can effectively avoid generating copper oxide, to can guarantee the flexible of enameled wire
Property, thermal shock, heat aging performance.
C. it paints, using felt japanning method, to step b, treated that wire rod carries out applies the wire enamel of high solids content, felt
Japanning method structure is simple, easy to operate, as long as two sides for being clipped in conducting wire with felt clamping plate that felt is smooth, loose using felt,
The characteristics of soft, flexible, crinosity hole, form it into die hole, scrape off paint extra on conducting wire, absorbed by capillary phenomenon, storage,
It conveys, make up paint solution, uniform paint solution is coated on the surface of conducting wire.Felt japanning method is not suitable for the too fast or viscosity of solvent volatilization
Excessive wire enamel, the too fast and excessive clogging of pores that can make felt of viscosity that volatilizees lose its good elasticity and hair quickly
Tubule siphonage, therefore, the insulation paint vehicle of the insulation paint vehicle replacement low-solid content of high solids content used herein, in not shadow
The usage amount for reducing solvent in insulated paint under the premise of ringing enameled wire performance, reduces the discharge amount of exhaust gas, can protect environment,
The wire enamel is the one of which in acetal paint or polyurethane paint or polyester-imide paint or polyamidoimide, the insulation
The insulation paint vehicle for the high solids content that paint vehicle uses, felt are 50-80mm at a distance from paint cylinder, and felt is 200- at a distance from baker
250mm。
D. it bakes, to step c, treated that wire rod is evaporated and solidifies in oven, and wire rod outer layer is made to form paint
Film, conducting wire enter baker after japanning, first evaporate the solvent in paint solution, then solidify, and form coast of paint film, then apply
Paint bakes, and is so repeated several times the baking process for just completing enamel-cover, and the baker is longitudinally divided into evaporating area and curing area,
Evaporating area is to evaporate based on solvent, and based on cured paint film, the distribution of oven drying temperature is non-to the baking relationship of enameled wire for curing area
Chang great.Two requirements are distributed with to oven drying temperature in new production technology：Longitudinal temperature and transverse temperature.Longitudinal temperature requires
It is curved, i.e., from low to high, then from high to low.Transverse temperature requires linear, and the uniformity of transverse temperature is by equipment
Heating, heat preservation, hot gas convection current etc. are because usually meeting.Enamelling technique requires enamel-cover furnace that need to reach：A) temperature precise control, ± 5 DEG C；
B) oven temperature profile is adjustable, and curing area maximum temperature is up to 330 DEG C；C) transverse temperature difference is no more than 5 DEG C, it is general in baker there are three types of
Temperature：Heat source temperature, air themperature, conductor temperature.The furnace temperature traditionally said is measured using putting aerial thermocouple
, temperature is normally close to the temperature of gas in burner hearth, and (T paint is that paint vehicle generates physics in baker to the source T > T gas > T paint > T line
The temperature of chemical change) usually 100 DEG C lower than T gas or so of T paint.
E. it cools down, the enameled wire come out from baker, temperature is very high, and paint film is very soft, intensity very little, if not in time cold
But, it is damaged by guide wheel paint film, affects quality of enamelled wire.When line speed is slow, as long as there is the cold of certain length
But section, enameled wire can natural cooling, natural cooling does not reach requirement when line speed is fast, it is necessary to force cooling, otherwise can not mention
Therefore high linear speed it is cooling by air blower and cooler to carry out adverse current to step d treated wire rod.
F. oiling applies lubricant grease to step e wire surface after cooling, put enameled wire can at a high speed in winding process
Line, the lubricant grease include 120# solvent naphtha 70-80%, 7# White Mineral Oil 8-10%, general lubricant agent 0.5-1%, can be increased
Strong product surface lubrication, reduces coefficient of friction, meets the requirement of client's high speed unwinding, due to without using any solid-state or half
The material of solid paraffin is not in that material is precipitated and is attached on the pin hole of coil winding machine the phenomenon that blocking pin hole, to mention
The production efficiency of high client, the precipitate and transfer of material of enamelled wire surface noresidue, will not shift the contact for being attached to coil
On, and cause coil that cannot be powered failure the phenomenon that scrapping, thus the service life of extension coil, and the lubricant grease volatilizees
Property is low；
G. take-up is wrapped on disk tool by the way that take-up is continuous by enameled wire, close, uniform.
Certainly, the embodiment of the above is only preferred embodiments of the invention, is not to limit the present invention and implement model
It encloses, therefore according to equivalent change made by structure, feature and principle described in scope of the present invention patent, the present invention should all be included in
In claim.
Claims (6)
1. a kind of production method of ultra micro fine enamelled wire, it is characterised in that：It the described method comprises the following steps：
A. unwrapping wire selects the soft state copper bar of the 1.33MM of retracting to be placed on unwrapping wire on wire dispenser；
The copper bar of 1.33MM is drawn into the semi-finished product wire rod of 0.020MM by b. wire drawing by multiple wire drawing；
C. it cleans, the semi-finished product wire rod drawn is cleaned, the greasy dirt on surface is removed；
D. it anneals, continuous annealing, annealing furnace is carried out to the semi-finished product wire rod in the lehr using contactless method for annealing
Incoming line sealed using nitrogen sealing mode；
E. it paints, apply to the semi-finished product wire rod wire enamel of high solids content using felt japanning method；
F. it bakes, the semi-finished product wire rod is evaporated and is solidified in oven, wire rod outer layer is made to form paint film；
G. it cools down, adverse current cooling is carried out by air blower and cooler to the semi-finished product wire rod；
H. oiling applies lubricant grease to the semi-finished product wire surface, makes enameled wire energy high speed unwinding in winding process, described
Lubricant grease includes 120# solvent naphtha 70-80%, 7# White Mineral Oil 8-10%, general lubricant agent 0.5-1%；
I. take-up is wrapped on disk tool by the way that take-up is continuous by enameled wire, close, uniform.
2. the production method of ultra micro fine enamelled wire according to claim 1, it is characterised in that：Unwrapping wire in the step a
Device be Brush type wire dispenser, wire rod at room temperature its most very much not extend tension be 15kg/mm2, at 400 DEG C most very much not extend
Power is 7kg/mm2；Most very much not extending tension at 460 DEG C is 4kg/mm2；Most very much not extending tension at 500 DEG C is 2kg/
mm2。
3. the production method of ultra micro fine enamelled wire according to claim 1, it is characterised in that：Wire drawing in the step b
Process includes the following steps：
1. the copper bar is drawn into the embryo material of 0.53mm by middle machine drawing wire drawing；
2. the copper bar is drawn into the embryo material of 0.15mm by small machine drawing wire drawing；
3. the copper bar is drawn into the embryo material of 0.070mm by tiny machine drawing wire drawing；4. thin machine drawing wire drawing draws the copper bar
At the embryo material of 0.035mm；
5. the copper bar is drawn into the embryo material of 0.020mm by fine machine drawing wire drawing.
4. the production method of ultra micro fine enamelled wire according to claim 1, it is characterised in that：Annealing furnace in the step d
Using two sections of temperature controls, first segment temperature is 300 DEG C, second segment temperature is 330 DEG C.
5. the production method of ultra micro fine enamelled wire according to claim 1, it is characterised in that：In the step e felt with
The distance for painting cylinder is 50~80mm, and felt is 200~250mm at a distance from oven, the density of the felt is 0.25 gram/it is vertical
Square centimetre, the wire enamel is the one of which in acetal paint or polyurethane paint or polyester-imide paint or polyamidoimide.
6. the production method of ultra micro fine enamelled wire according to claim 1, it is characterised in that：One is formed in the step f
After layer paint film, then repeated multiple times japanning and baking are divided into evaporating area and curing area in the baker, and the evaporating area is molten to evaporate
Based on agent, the curing area is based on cured paint film.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810676663.3A CN108878059A (en) | 2018-06-27 | 2018-06-27 | The production method of ultra micro fine enamelled wire |
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| CN201810676663.3A CN108878059A (en) | 2018-06-27 | 2018-06-27 | The production method of ultra micro fine enamelled wire |
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| CN108878059A true CN108878059A (en) | 2018-11-23 |
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| CN201810676663.3A Pending CN108878059A (en) | 2018-06-27 | 2018-06-27 | The production method of ultra micro fine enamelled wire |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192720A (en) * | 2019-12-23 | 2020-05-22 | 湖州市练市聚丰线缆厂 | Enameled wire production process |
| CN111276301A (en) * | 2020-03-02 | 2020-06-12 | 江西蓝微电子科技有限公司 | Preparation method of insulating coating bonding alloy wire |
| CN113611461A (en) * | 2021-08-06 | 2021-11-05 | 山东赛特电工股份有限公司 | Manufacturing process of environment-friendly enameled wire |
| CN115497686A (en) * | 2022-06-27 | 2022-12-20 | 科城铜业(英德)有限公司 | Production process of medium-thin enameled wire |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101325102A (en) * | 2008-08-05 | 2008-12-17 | 吴刚 | Technique for manufacturing frequency conversion varnished wire |
| CN103996466A (en) * | 2014-06-05 | 2014-08-20 | 珠海市一致电工有限公司 | Enamel covering method of fine enamel covered wires |
| CN104795181A (en) * | 2015-04-08 | 2015-07-22 | 珠海市一致电工有限公司 | Production method for ultrafine enamelled wire |
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2018
- 2018-06-27 CN CN201810676663.3A patent/CN108878059A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101325102A (en) * | 2008-08-05 | 2008-12-17 | 吴刚 | Technique for manufacturing frequency conversion varnished wire |
| CN103996466A (en) * | 2014-06-05 | 2014-08-20 | 珠海市一致电工有限公司 | Enamel covering method of fine enamel covered wires |
| CN104795181A (en) * | 2015-04-08 | 2015-07-22 | 珠海市一致电工有限公司 | Production method for ultrafine enamelled wire |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192720A (en) * | 2019-12-23 | 2020-05-22 | 湖州市练市聚丰线缆厂 | Enameled wire production process |
| CN111276301A (en) * | 2020-03-02 | 2020-06-12 | 江西蓝微电子科技有限公司 | Preparation method of insulating coating bonding alloy wire |
| CN113611461A (en) * | 2021-08-06 | 2021-11-05 | 山东赛特电工股份有限公司 | Manufacturing process of environment-friendly enameled wire |
| CN115497686A (en) * | 2022-06-27 | 2022-12-20 | 科城铜业(英德)有限公司 | Production process of medium-thin enameled wire |
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Application publication date: 20181123 |