CN101923917A - Enamelled wire for network transformer - Google Patents
Enamelled wire for network transformer Download PDFInfo
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- CN101923917A CN101923917A CN 201010259236 CN201010259236A CN101923917A CN 101923917 A CN101923917 A CN 101923917A CN 201010259236 CN201010259236 CN 201010259236 CN 201010259236 A CN201010259236 A CN 201010259236A CN 101923917 A CN101923917 A CN 101923917A
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- enamelled wire
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Abstract
The invention relates to an enamelled wire for a network transformer, which comprises a copper core conductor and a high temperature-resistant polyurethane coating layer as well as a neloy paint layer which are arranged out of the copper core conductor, wherein the volume of the high temperature-resistant polyurethane coating layer and the neloy paint layer is 40-60% of that of the enamelled wire for the network transformer; and the volume of the neloy paint layer is 1-3% of that of the enamelled wire. The manufacture method of the enamelled wire comprises the following steps of: firstly dragging copper material to be a naked copper wire; cleaning and annealing the naked copper wire; coating an insulated paint layer with a felt and baking, wherein the paint is coated at 15-20 ways, the paint is coated for once, and the baking is performed for once; and coating a layer of the neloy paint layer on the surface of the insulating paint layer and baking. The enamelled wire has the advantages of thick paint film, high voltage resistance, large elongation percentage, large tensile strength and the like, and can be applied to electric devices with high correlative machining requirement, small space requirement and the like such as the network transformer and the wave filter, etc.
Description
Technical field
The present invention relates to the enamelled wire technical field, specifically be meant the enamelled wire that a kind of network transformer is used.
Background technology
Existing enamelled wire can use the copper core as conductor, and surface applied has individual layer or multilayer polyurethane insulating barrier, and this kind enamelled wire is widely used in the products such as motor, sound equipment, magnetic device.Along with the continuous innovation of electronic technology, network magnetic device (transformer) also develops towards weak point, little, light, thin direction, and to the also corresponding raising of its performance requirement, and this communication transformer performance enameled wire performance used with it is closely-related.
But existing enamelled wire problems such as proof voltage is bad, tensile strength is little, extensibility is poor, wear resistance difference can often occur after the Reflow Soldering of about 270 ℃ of mistakes, therefore, characteristics such as the interior proof voltage of industry, tensile strength, extensibility for this type of enamelled wire of enhancing, usually coat one deck Teflon or materials such as glass fiber or single cotton yarn on the enamelled wire surface, this can cause, and small product size is big, poor plasticity.Another kind method is, use can not scolding tin enamelled wires such as polyester-imide strengthen thermal endurance, proof voltage, but this need increase multiple tracks scolding tin concerned process steps, and cost is higher, all can't be applicable to the associated electronic components requirements of miniaturization day by day such as network transformer or filter.
Summary of the invention
Technical problem to be solved by this invention overcomes the deficiencies in the prior art exactly, and a kind of enamelled wire for network transformer of high-performance and low-cost is provided.
According to the above-mentioned problem that needs solution, the technical solution used in the present invention is: a kind of enamelled wire for network transformer is provided, comprises metallic conductor and be arranged on the outer insulating barrier of metallic conductor, insulating barrier also is provided with the nylon enamelled coating outward.
Concrete, described metallic conductor is the copper core conductor; Described insulating barrier is high temperature resistant polyurethane coating; Described high temperature resistant polyurethane coating and nylon enamelled coating volume account for 40～60% of described enamelled wire for network transformer volume.
Preferably, described nylon enamelled coating volume accounts for 1～3% of described enamelled wire volume.
Preferred, described nylon enamelled coating also is provided with lube layer outward.
The present invention also provides the manufacture method of above-mentioned enamelled wire for network transformer, the steps include:
(1) adopt wire drawing machine that the copper material is drawn into the bare copper wire of required specification, will be in the pulling process through annealing in process repeatedly;
(2) bare copper wire is delivered to unwrapping wire on the enameling machine, cleaned, anneal;
(3) after the bare copper wire annealing, the employing felt is coated with insulation enamelled coating and baking, paints once in japanning 30-40 road, and baking once;
(4) again in insulating varnish laminar surface coating one deck nylon enamelled coating and baking, described nylon enamelled coating volume accounts for 1～3% of described enamelled wire volume, nylon layer and insulating barrier volume and account for enamelled wire cumulative volume 40-60%;
(5) after the cooling, make enamelled wire for network transformer after being coated with surface lubrication oil again.
Compared with prior art, beneficial effect of the present invention is: characteristics such as described enamelled wire for network transformer has paint film thickness, proof voltage height, percentage elongation is big, tensile strength is big, the enamelled wire of enamelled wire of Sheng Chaning or outsourcing Teflon or silk bag has remarkable advantages compared to prior art, applicable to relevant processing request height such as network transformer, filter, the little electronic devices and components of space requirement; In addition, described enamelled wire also has advantages such as manufacturing procedure is simple, economical with materials.
Description of drawings
Fig. 1 is the cross-sectional configuration schematic diagram of enamelled wire for network transformer of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, enamelled wire for network transformer of the present invention is to do conductor with elemental copper core (1), this conductive surface is established polyurethane insulating layer (2), and layer of polyurethane (2) peripheral hardware nylon lacquer coat (3) is provided with lubricant coating (4) outside nylon lacquer coat (3).
In the described enamelled wire for network transformer, layer of polyurethane (2) and nylon lacquer coat (3) account for 40～60% of whole enamelled wire volume altogether, and independent extraordinary nylon lacquer coat (3) accounts for 1～3% of whole enamelled wire volume.
Enamelled wire for network transformer of the present invention is as directly producing with the 0.10mm line, and the percentage elongation of product can be controlled in 35-70%, and proof voltage can be up to 9-11KV, and the enamelled wire that middle compared to prior art percentage elongation is controlled at 10-30% has tangible processed edge.
Enamelled wire for network transformer processing technology of the present invention is as follows:
(1) adopt wire drawing machine that the copper material is drawn into the bare copper wire of required specification, will be in the pulling process through annealing in process repeatedly;
(2) bare copper wire is delivered to unwrapping wire on the enameling machine, cleaned, anneal;
(3) after the bare copper wire annealing, the employing felt is coated with insulation enamelled coating and baking, paints once in japanning 15-20 road, and baking once;
(4) again in insulating varnish laminar surface coating one deck nylon enamelled coating and baking, described nylon enamelled coating volume accounts for 1～3% of described enamelled wire volume, nylon layer and insulating barrier volume and account for enamelled wire cumulative volume 40-60%;
(5) after the cooling, make enamelled wire for network transformer after being coated with surface lubrication oil again.
Drawing process mainly adopts Medium drawing mach ine and little machine drawing, and the copper material is drawn into the bare copper wire of required specification (as 0.100mm) the most at last, will be in the pulling process through annealing in process repeatedly, and this place adopts current degradation mode, makes copper cash deliquescing gradually, convenient processing.Then the copper cash of required specification is delivered to unwrapping wire on the enameling machine, through sending into annealing furnace annealing after the clean, annealing temperature generally is controlled at 300 ℃.
After the annealing, coat the insulation enamelled coating of desired thickness, want repeated multiple times to apply during japanning with felt, the 30-40 road of generally the painting 3-4 of conventional japanning road number (be about doubly), japanning once, baking is once.Like this, reduce the thickness of every layer of japanning, make every layer of japanning more even, can also reduce the flat phenomenon that causes line owing to the enamelled coating action of gravity, with the deviation in roundness of product control to minimum (± 0.001mm), strengthen the withstand voltage properties of enamelled wire for network transformer.
The certain thickness extraordinary nylon lacquer coat of online again surface applied one deck, because nylon lacquer good leveling property, high temperature resistant, can obviously improve the smooth degree on enamelled wire surface after coating the nylon enamelled coating, reduce the friction that enamelled wire adds man-hour and metal mechanical surface, improve the enamelled wire abrasion resistance, also can improve the resistance to elevated temperatures of enamelled wire simultaneously.The nylon enamelled coating can not be too thick, and it is good that volume accounts for 1～3% of described enamelled wire volume.
After the final cooling of baking, coat layer of surface lubricating oil again, this lubricating oil cooperates the nylon enamelled coating can further improve the anti-wear performance of enamelled wire.
Claims (7)
1. enamelled wire for network transformer comprises metallic conductor and is arranged on the outer insulating barrier of metallic conductor, it is characterized in that insulating barrier also is provided with the nylon enamelled coating outward.
2. enamelled wire for network transformer according to claim 1 is characterized in that, described metallic conductor is the copper core conductor.
3. enamelled wire for network transformer according to claim 2 is characterized in that, described insulating barrier is high temperature resistant polyurethane coating.
4. enamelled wire for network transformer according to claim 3 is characterized in that, described nylon enamelled coating also is provided with lube layer outward.
5. enamelled wire for network transformer according to claim 4 is characterized in that, described high temperature resistant polyurethane coating and nylon enamelled coating volume account for 40～60% of described enamelled wire for network transformer volume.
6. enamelled wire for network transformer according to claim 5 is characterized in that, described nylon enamelled coating volume accounts for 1～3% of described enamelled wire volume.
7. the manufacture method of enamelled wire for network transformer the steps include:
(1) adopt wire drawing machine that the copper material is drawn into the bare copper wire of required specification, will be in the pulling process through annealing in process repeatedly;
(2) bare copper wire is delivered to unwrapping wire on the enameling machine, cleaned, anneal;
(3) after the bare copper wire annealing, the employing felt is coated with insulation enamelled coating and baking, paints once in japanning 30-40 road, and baking once;
(4) again in insulating varnish laminar surface coating one deck nylon enamelled coating and baking, described nylon enamelled coating volume accounts for 1～3% of described enamelled wire volume, nylon layer and insulating barrier volume and account for enamelled wire cumulative volume 40-60%;
(5) after the cooling, make enamelled wire for network transformer after being coated with surface lubrication oil again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010259236 CN101923917A (en) | 2010-08-23 | 2010-08-23 | Enamelled wire for network transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010259236 CN101923917A (en) | 2010-08-23 | 2010-08-23 | Enamelled wire for network transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101923917A true CN101923917A (en) | 2010-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010259236 Pending CN101923917A (en) | 2010-08-23 | 2010-08-23 | Enamelled wire for network transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN101923917A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104588421A (en) * | 2015-01-21 | 2015-05-06 | 宁波金田新材料有限公司 | Production process of high-elongation fine enameled wire |
| CN105761926A (en) * | 2016-02-29 | 2016-07-13 | 无锡南理工科技发展有限公司 | Preparation method of coil |
| CN110911053A (en) * | 2019-12-03 | 2020-03-24 | 湖州中洲电磁线有限公司 | Manufacturing method of enameled wire for network transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10261321A (en) * | 1997-02-24 | 1998-09-29 | Alcatel Alsthom Co General Electricite | Enameled wire with high resistance to partial discharge |
| US6214462B1 (en) * | 1990-02-16 | 2001-04-10 | Alcatel N.V. | Enameling lacquer, process for the manufacture of the lacquer and application of the lacquer to enameling wires |
| CN101236800A (en) * | 2008-01-22 | 2008-08-06 | 常州华成电工有限公司 | Self-adhesive enameled wire |
| CN201149780Y (en) * | 2007-12-06 | 2008-11-12 | 珠海格力电器股份有限公司 | Varnished wire |
| CN201413663Y (en) * | 2009-04-13 | 2010-02-24 | 浙江长城电工科技有限公司 | Thermal-bonding direct-welding polyurethane paint copper-coating round wire |
-
2010
- 2010-08-23 CN CN 201010259236 patent/CN101923917A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6214462B1 (en) * | 1990-02-16 | 2001-04-10 | Alcatel N.V. | Enameling lacquer, process for the manufacture of the lacquer and application of the lacquer to enameling wires |
| JPH10261321A (en) * | 1997-02-24 | 1998-09-29 | Alcatel Alsthom Co General Electricite | Enameled wire with high resistance to partial discharge |
| CN201149780Y (en) * | 2007-12-06 | 2008-11-12 | 珠海格力电器股份有限公司 | Varnished wire |
| CN101236800A (en) * | 2008-01-22 | 2008-08-06 | 常州华成电工有限公司 | Self-adhesive enameled wire |
| CN201413663Y (en) * | 2009-04-13 | 2010-02-24 | 浙江长城电工科技有限公司 | Thermal-bonding direct-welding polyurethane paint copper-coating round wire |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104588421A (en) * | 2015-01-21 | 2015-05-06 | 宁波金田新材料有限公司 | Production process of high-elongation fine enameled wire |
| CN105761926A (en) * | 2016-02-29 | 2016-07-13 | 无锡南理工科技发展有限公司 | Preparation method of coil |
| CN110911053A (en) * | 2019-12-03 | 2020-03-24 | 湖州中洲电磁线有限公司 | Manufacturing method of enameled wire for network transformer |
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Application publication date: 20101222 |