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Magnet Wire

Your Professional Magnet Wire Supplier
 

Hangzhou Weshare Import & Export Co.,Ltd. is a leading Chinese manufacturer and exporter of transformer components, electrical insulation materials and consulting company. Weshare founded in 2005 by one specialized sales in transformer accessories. Most of our products are used in oil and dry transformers, electrical motors, generators and electronic products.Our mission is to ensure appropriate product quality while satisfying the needs of our customers is our prime objective and represents the core principle of our business activities.

 

 
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Why Choose Us

Quality Assurance

Certified by UL, SGS, and ISO9001, Weshare upholds stringent quality standards.

Extensive Experience

Weshare, since 2005, excels in transformer accessories and electrical engineering.

Export markets

With a strong focus on export markets, we have successfully captured significant market share in East Asia, North Europe, the Middle East, South America, Egypt, and East Africa. Our dedication to ensuring appropriate product quality while meeting customer needs is the cornerstone of our business philosophy.

Product Application

Our company boasts a wide array of products used in oil and dry transformers, electrical motors, generators, and electronic devices.

 

 

 

Advantages of Magnet Wire

Excellent Electrical Conductivity: Copper is highly conductive, making it an ideal material for transmitting electricity efficiently.

 

Insulation: The enamel coating provides insulation, preventing short circuits and ensuring the safe operation of electrical devices.

 

High Temperature Resistance: Enameled copper wire can withstand high temperatures without compromising its electrical properties, making it suitable for a wide range of applications.

 

Thin Insulation Layer: The enamel coating is typically very thin, allowing for compact winding in coils and transformers.

 

Durability: Enameled copper wire is resistant to abrasion and mechanical damage, ensuring long-term reliability in various operating conditions.

 

Flexibility: Despite its insulation, enameled copper wire remains flexible, facilitating easy installation and handling in tight spaces.

 

Corrosion Resistance: Copper is inherently resistant to corrosion, ensuring the longevity of enameled copper wire even in harsh environments.

 

Cost-Effectiveness: Copper is readily available and relatively inexpensive compared to other conductive materials, making enameled copper wire a cost-effective choice for many applications.

 

Wide Range of Sizes: Enameled copper wire is available in various sizes and gauges to suit different voltage and current requirements.

 

Compatibility: Enameled copper wire is compatible with standard soldering techniques, allowing for easy connections in electronic circuits and devices.

 

Specification

 

Property

Value

Elongation

>30%

Springiness

<45

Adherence - Flexibility

Excellent

Resistance to Abrasion

>17.75N

Breakdown Voltage

7kV

Temperature Index

200

Cut through

≥ 225 °C

Heat Shock

≥320 °C

Solvent Test

4H

Resistance to Refrigerants

-

 

Production process of Magnet Wire

The general enameled wire production process is as follows: pay-off → annealing → painting → baking → cooling → lubrication → take-up.

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Pay off Line
The key to paying off the line is to control the tension. When the tension is high, it not only thins the conductor and makes the surface of the wire lose its brightness, but also affects many properties of the enameled wire. From the appearance, the enameled wire produced by the thinned wire has a poor luster.

 

Annealing
The purpose of annealing is to heat the conductor, which has become hardened due to lattice changes during the mold stretching process, to a certain temperature so that the molecular lattice can be rearranged and the softness required by the process can be restored. At the same time, the lubricant, oil stains, etc. remaining on the surface of the conductor during the stretching process are removed, making the conductor easy to paint and ensuring the quality of the enameled wire.

 

Paint
Painting is the process of applying enameled wire paint on metal conductors to form a uniform paint layer with a certain thickness. Generally, enameled wire paint must be coated and baked multiple times to fully evaporate the solvent and completely react with the paint-based resin to form a good paint film.

 

Baking
After the wire is painted, it enters the oven. The solvent in the paint solution is first evaporated and then solidified to form a paint film. Then paint and bake, repeating this several times to complete the entire baking process of the enameled bag.

 

Lubricating
The lubrication of the enameled wire has a great relationship with the tightness of the wire take-up. The lubricant used for enameled wire must be able to make the surface of the enameled wire slippery, be non-harmful to the wire, and must not affect the strength of the take-up reel and the user’s use.

 

Take up line
The purpose of winding and arranging the wire is to wind the enameled wire onto the spool continuously, tightly and evenly. The take-up mechanism is required to have smooth transmission, low noise, appropriate tension and regular cable arrangement. Among the quality problems of enameled wire, a large proportion of returns are caused by poor take-up and arrangement.

 

Applications of Magnet Wire in Modern Technology
 

Electric Motors
Electric motors are ubiquitous in modern life, powering everything from household appliances to industrial machinery. Magnetic wire is a key component in the construction of electric motors, used in the windings of the stator and rotor. The wire’s ability to carry electrical current with minimal loss and its excellent insulation properties make it ideal for this application.

 

Transformers
Transformers are essential for the transmission and distribution of electrical power. They rely on magnetic wire for their windings, which create the magnetic field necessary for transforming voltage levels. Both power and distribution transformers use large quantities of magnet wire to handle high currents and voltages.

 

Inductors
Inductors, used in various electronic circuits, depend on magnet wire to create the inductive properties required for their operation. These components are found in power supplies, filters, and many other electronic devices. The wire is wound into coils to create the magnetic field that characterizes inductors.

 

Relays and Solenoids
Relays and solenoids use magnet wire to create electromagnetic fields that control switches and mechanical movements. These components are critical in automation systems, automotive applications, and many types of machinery.

 

Generators
Generators convert mechanical energy into electrical energy and are essential in power plants, emergency backup systems, and renewable energy applications. Magnet wire is used in the windings of the generator’s stator and rotor, enabling the generation of electricity.

 

Electromagnets
Electromagnets, which are used in various applications including magnetic levitation, MRI machines, and industrial lifting, rely on magnetic wire to create magnetic fields. The wire is wound into coils and energized to produce the required magnetic force.

 

Headphones and Loudspeakers
In audio devices like headphones and loudspeakers, magnet wire is used in the voice coils that drive the speaker diaphragms. The wire creates an electromagnetic field that interacts with a permanent magnet to produce sound.

 

Hard Disk Drives (HDDs)
Hard disk drives use magnet wire in the voice coil actuators that position the read/write heads over the disk platters. This precise movement is essential for reading and writing data accurately.

 

FAQ

 

Q: What is special about magnet wire?

A: Magnet wire types can be quite varied but will include the following features: (a) uniformity of insulation, (b) good electrical properties like dielectric strength and insulation resistance, (c) resistance to mechanical stress, (d) resistance to chemicals, solvents, and encapsulating varnishes, (e) thermal resistance.

Q: What's the difference between magnet wire and regular copper wire?

A: Magnet wire is bare copper wire coated with insulation to prevent shorting of wound coils. The insulation comes in various thicknesses based on the need of the product being wound. Single build is a standard, where as heavy build adds double the amount of insulation to further protect the wire from shorting out.

Q: How much current can a magnet wire handle?

A: The formula for current carrying capacity in amperes for copper magnet wire wound into a coil is: Diameter Squared X 4869.48 (d = diameter in inches).

Q: What is the shelf life of magnet wire?

A: Magnet wire shelf life is not established in commercial specifications. As long as the wire has been carefully stored it may be usable for years to come. Bondable wire should not be stored at temperatures exceeding 100°F.

Q: How to wrap magnet wire?

A: Wrap the wire completely around the nail, but try not to overlap it on itself. Leave it so you have at least 6 – 7 inches or more of wire on both ends. Make sure the coil is as tight as possible, the tighter the wire wrapping, the stronger the magnet is.

As one of the leading magnet wire suppliers in China, we warmly welcome you to wholesale high-grade magnet wire made in China here from our factory. All our products are with high quality and competitive price.

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