Insulating coatings

Enameled Copper Coating Aluminum Wire refers to the wire with aluminium core as the main body and a certain proportion of copper coating on it. It can be used as conductor of coaxial cable and conductor of wire and cable in electrical equipment.Polyurethane enameled wire; thermal grade 130, 155, 180, 200. It is characterized by direct welding, good high frequency resistance, easy coloring and good moisture resistance.

3M paper covered aluminium wire feature :
* High dielectric strength/Excellent therm alstability/Wrapped tightly;
* Paper covered Aluminum wire is a special kind of magnet wires. Its conductors is electrical round aluminum rods which squeeze
and draw by the certain size of mold. And its insulations is special material;
* Our 3M paper covered aluminum wire uses two layers or several layers as the insulation layer;
* The wrapping direction of paper is same. And every layer paper twines conductors continually and compactly without wrinkles;
* Uses for oil-immersed transformers, reactors and other windings;

Advantages of enameled CCA wire:
As envelope alternatives of pure enameled copper wire, it has good performance of high frequency transmission, originally it was applied in various types of high-frequency electromagnetic induction coil; now in order to save more production cost, ECCA wire has been widely used in various types of electronic coils, transformers, inductors, rectifiers, and all kinds of large and small motors, and has excellent soldering performance. Its density is low, the weight of the unit product can at least save 40% of the copper wire, it can save a lot of cost of production material.

Flat enameled wire is a type of enameled wire. It is a winding wire made of oxygen-free copper rods or electrical aluminum rods that are drawn, extruded or rolled by a certain specification die, and then coated with insulating paint for many times. The thickness is from 0.025mm To 2mm, the width is generally less than 5mm, and its aspect ratio ranges from 2:1 to 50:1. Flat enameled wire has a wide range of uses, especially in the windings of various electrical equipment such as telecommunication equipment, transformers, motors and generators.

Enameled wire is widely used in our production and life. The paint it uses is a kind of paint that can produce a good insulating layer between the wires in the winding.
Enameled wire is made on the basis of copper wire. Simply put, enameled wire is a layer of insulator on the copper wire, usually plastic. Enameled wire paint is a kind of outer layer of bare copper wire, alloy wire and glass wire covered wire of various wire diameters to improve and stabilize the performance of enameled wire. It has high mechanical strength, resistance to Freon refrigerant, good compatibility with impregnating paint, and can meet the requirements of heat resistance, impact resistance, oil resistance, etc.

Transformer insulation wire is usually circular. Silk covered wire, also known as cotton covered wire, it is a thread or yarn on copper coated insulation materials, such as to increase the mechanical strength and dielectric strength of the wire.

1. Mechanical functions: including elongation, rebound angle, softness and adhesion, paint scraping, tensile strength and other items.
(1) Elongation reflects the plastic degeneration of the material and is used to check the ductility of the enameled wire.
(2) The rebound angle, the softness reflects the elastic deformation of the material, and is used to check the softness of the enameled wire.
¢ÇThe durability of the paint film includes winding and stretching, that is, the promised tensile deformation of the paint film without cracking when the conductor is stretched and deformed.
(4) The adhesion of the paint film includes snap-off and peeling. First, check the adhesion of the paint film to the conductor.
(5) The scratch resistance test of the paint film reflects the strength of the paint film against mechanical scratches.

These Paper wrapped insulated aluminium wires enamelled and Strips are made from very high quality raw material which ensures hassle free work performance at its user end. These Paper Covered Aluminum Wires and Strips are technologically advanced and confirm to industrial quality norms of international standard. These Paper Covered Aluminum Wires and Strips are widely finds its applications in various industrial sectors.

Round Enameled Wire type: Aluminum Wire and Copper Wire
Application:used for transformers, inductors, motors, generators, dry type transformer, Cast Resin Transformers
Dimension: Aluminum : 0.2-9.2mm; Copper: 0.016-7mm

Standards Of Enameled Wire includes
1）IEC 60317 for Europe
2）JIS C3202 for Asia
3）NEMA MW 1000C (inch) or NEMA MW 1000C metric (mm) for North America

Another important usage of copper is in manufacturing wire gauges that are largely use in measuring the diameter of wire.
Similarly aluminium is also largely use for electrical application.

After the temperature resistance level is exceeded, the insulation layer will age, melt and crack. The result is that the insulation capacity is greatly reduced, and it is prone to increased loss, short-circuit failure, etc.

Enameled wire is used for camcorder, electronic clock, micro relay, automobile, electronic instrument, washing machine, TV element, etc. Development direction in the diameter, use the specification range of ¦Õ0.06 ~ 0.08 mm and all thickened insulation

According to SMM survey data, the operating rate of enameled wire in September was 71.32%, down 8.28% year-on-year, down 1.82% month-on-month, and 1.65% lower than the expected 72.97%. Among them, the operating rate of large enterprises was 71.56%, down 0.69% from the previous month; medium-sized enterprises fell by 4.06% to 71.50%, and small enterprises fell by 0.55% to 60.83%.

Kraft Insulated Copper Stranded Paper Covered Wire refers to the insulation layer of the wire wrapped with cable paper. The paper covered wire insulation has at least 3 layers to wrap the paper tape. When it exceeds 3 feet, the innermost and outermost layers should be covered and wrapped, and the rest can be wrapped around with a gap of no more than 2mm. When the width of the paper tape is 9.5 When mm and above, the gap should not exceed 3mm.

List 5 type of enameled wire characteristics
Acetal enameled wire
Polyurethane enameled wire
Polyester and modified polyester enameled wire
Polyesterimide/polyamide imide composite enameled wire
Polyesterimide/polyamide composite enameled wire

We are factory specializing in the manufacture and export of enameled Coil Aluminum winding wire (EAL wire, Aluminum winding wire ) for more than three years. We have profuse designs with series quality grade, and expressly, our price is very competitive because we are manufactory, we are the source.

UL Certificated 220 High Thermal Class Oxidized Film Aluminum Wire and aluminum strip insulated with aluminum oxide film are used in the fields of electronics, missiles, nuclear reactors, aerospace and aircraft industries. The oxide film has high flexibility and is suitable for winding electromagnetic coils of various shapes and sizes. The use of round or rectangular aluminum wires and aluminum strips can save 50% of metal, so it has commercial value. For example, linear motors and medical equipment industries are widely used because of their light weight and low inertia. For rotating equipment, light weight can simplify the dynamic balance, thus reducing the vibration generated by the dynamic balance, thereby improving the sensitivity of the moving coil and its high-frequency response.

Springiness of Round Enameled Wire is one of important performance in accordance with the IEC standards to ensure the quality of Round Enameled Wire. How to improve the performance, the article introduce how to operate the enameling machine, during the manufacturing process of enameled wire, the worker shoule be focus on some points.

There are some differences between polyester enameled wire and polyurethane enameled wire in terms of use occasions and performance:
Polyester enameled wire, composed of copper conductor and polyester resin, has a thermal class of 130, and after modification, the thermal class of the enameled wire is 155. It has good mechanical strength, paint film adhesion, excellent electrical, scratch resistance, chemical resistance, thermal stability and solvent resistance. It is widely used in various motors, electrical appliances, meters, telecommunications equipment and home appliances; the weakness of this product is poor thermal shock resistance and low moisture resistance.

Polyurethane enameled wire, thermal grade is 130,155,180. The biggest feature is that it has direct solderability, good high frequency resistance, easy coloring, and good moisture resistance. It is widely used in electronic appliances, precision instruments, telecommunications, and meters. The weakness of this product is that the mechanical strength is slightly poor, and the heat resistance is not high. , And the flexibility and adhesion of the production of large-size wires are poor, so the specifications of the product are mostly small and medium-sized wires.

Axalta today announced that it has reached a final agreement to acquire Anhui Shengran Insulation Materials Co., Ltd. (“Anhui Shengran”). Anhui Shengran is a leading manufacturer of high-quality enameled wire paint in China. Its products are widely used in consumer electronics, electric vehicles and industrial fields. Subject to the conditions of the agreement, the transaction is expected to be completed in the second quarter of 2021. Financial terms have not been disclosed.

A brief introduction to the advantages and disadvantages of copper wire and aluminum wire:Same area:

1, copper wireis large load than aluminum wire . 2, copper wire is more flexible than aluminum wire. 3 copper wire is lower resistivity than aluminum wire. 4,copper wire is more stable than aluminum wire. 5, however, copper wirer price is 3.5 times higher than aluminum wire.

Oxidative Aluminum Wire (Anodized aluminium wire)belongs to the special electromagnetic wire and the insulation layer is the aluminum oxide.
Because of no thermal aging phenomenon, it can be used as insulation level of class 220.
The insulation layer of such product is thin, high temperature resistance and insulation performance stability,which is the best choice for low voltage winding wires with producing high temperature, poor environment, heat dissipation difficulty and so on.
It can widely be used in electromagnetic industries at home and abroad.

Enameled Aluminum Wire – EAW
Enameled Copper Wire – ECW
Enameled Aluminum Wire VS Enameled Copper Wire

Fiberglass Covered Insulated rectangular aluminum wire is in accordance with customer requirements in aluminum conductor uniform whole winding package 1-2 layers of alkali-free fiberglass, with the necessary temperature resistance index and compatible adhesive paint dipping and baking process, glass fiber and conductor between bonded into a whole.

Enamelled Covered Aluminium Wire Production Process

One step :
Take the pure aluminum material drawing into the aluminium rod wire;

Two step :
Through the extrusion production line, take the aluminum rod wire into extruding and coarse drawing operation, then becoming the requirement specification of Bare aluminium wire;

Three step :
Take up the Bare aluminum wire conductor, and inspection the bare wire coil products;

Four step :
Trough the enameled covered production line, taking cleaning¡¢annealing and drying operation , and ready to enameled covered step;

Five step :
Taking into enameling operation, and then for cooling and lubricanting;

Six step :
Through the on-line monitoring equipment, inspecion the quality of enameled wire, and take up the fulfillment products.

Seven step :
Packing the enameled wire products, and placed neatly in warehouse.

Transformer oil: It is a fractionation product of petroleum, and its main components are alkanes, cycloalkane saturated hydrocarbons, aromatic unsaturated hydrocarbons and other compounds. Commonly known as square shed oil, it is a light yellow transparent liquid with a relative density of 0.895. Freezing point <-45¡æ.
Transformer oil is a kind of mineral oil obtained by distillation and refining from natural petroleum. It is a liquid natural hydrocarbon that is pure and stable, with low viscosity, good insulation, and good cooling by acid-base refining treatment of the lubricating oil fraction in petroleum. Mixture of compounds. Commonly known as square shed oil, light yellow transparent liquid.

Insulation, also called insulating coatings, is a kind of coating with excellent electrical insulation. It has good electrochemical properties, thermal properties, mechanical properties and chemical properties, mostly varnishes, but also colored paints. Insulating paint is a special paint in the paint category. Insulating varnish is an important insulating material based on high molecular polymers that can be cured into an insulating film or insulation under certain conditions. Insulating paint is composed of base material, flame retardant, curing agent, pigment and filler, and solvent. It introduces its composition, usage classification, grade classification, requirements, development trend, etc. in detail.

Pay-off (link pull) ¡ú annealing ¡ú painting ¡ú baking ¡ú cooling ¡ú lubrication ¡ú take-up

Enameled wire is the most widely used electromagnetic wire in the production of low-voltage products. A key performance requirement of this electromagnetic wire is the continuity of the paint film, which is to check the number of pinholes in the paint film under a certain length. When checking the number of pinholes, use a professional paint film continuity tester. The fewer the number of pinholes, the better the paint film integrity of the magnet wire.