Summary
Enamelled round aluminum wire is a crucial component in motor winding applications, offering a balance of conductivity, thermal resistance, and cost-efficiency. With its insulating enamel coating, lightweight nature, and excellent performance characteristics, it has become a preferred choice in various electrical and industrial applications. This article explores the technical specifications, advantages, applications, and industry standards governing its production and use.
Introduction
In the world of electrical engineering, choosing the right winding wire is essential for achieving efficiency and durability in motors and transformers. Enamelled round aluminum wire has emerged as a viable alternative to copper wire, primarily due to its lighter weight and cost-effectiveness. Despite its lower electrical conductivity compared to copper, advancements in insulation technology and processing techniques have made it a competitive option for modern electrical applications.
Technical Specifications
Enamelled round aluminum wire is available in various temperature classes, dimensions, and insulation types. Below are the key specifications:
Temperature Class: 130°C, 155°C, 180°C, 220°C
Conductor Type: Solid
Insulation Material: Polyester (PE), Polyesterimide (EIW), and Polyamide-imide (EI/AIW)
Wire Diameter: 0.12mm – 6.00mm
Certification: ISO9001, UL, RoHS, SGS
Production Standards: GB, IEC, NEMA, JIS
Packaging: Plastic bobbin + carton + pallet
Supply Capacity: 500 tons per month
Lead Time: 15-20 days depending on order size
Advantages of Enamelled Round Aluminum Wire
Lightweight and Cost-Effective
Aluminum is approximately one-third the weight of copper, which significantly reduces overall material costs and transportation expenses. This makes it an economical choice for large-scale electrical manufacturing
High Thermal Resistance
The insulation on enamelled aluminum wire provides superior thermal endurance, withstanding temperatures up to 220°C. This ensures stable performance in high-temperature environments, such as industrial transformers and motor windings.
Oxidation Resistance and Long Lifespan
A natural oxide film forms on aluminum, providing additional insulation and corrosion resistance, which enhances durability and extends the lifespan of the wire.
Superior Insulating Properties
Due to the enamel coating, enamelled aluminum wire exhibits excellent dielectric strength, reducing energy loss and improving overall efficiency in electrical applications.
Improved Flexibility and Winding Capability
Aluminum wires are easier to wind compared to copper, allowing for greater flexibility in designing electrical coils and windings with precise specifications.
Comparative Properties of Aluminum vs. Copper Winding Wire
| Feature | Enamelled Aluminum Wire | Enamelled Copper Wire |
|---|---|---|
| Electrical Conductivity | Lower | Higher |
| Weight | 1/3 of copper | Heavier |
| Thermal Resistance | Higher due to oxide layer | Standard |
| Cost | Lower | Higher |
| Corrosion Resistance | Higher (oxide layer) | Lower |
| Flexibility | Easier to wind | Harder to wind |
Applications of Enamelled Round Aluminum Wire
Industrial and Consumer Electronics
- Used in microwave transformers for high-frequency applications
- Employed in electromotors and micro-motors where lightweight windings are essential.
Power Transmission and Electrical Coils
Applied in high-frequency transformers and common transformers for efficient energy transfer.
Integral to inductance coils and monitor deflection coils in display technology.
Essential in degaussing coils for reducing residual magnetism in electronic devices.
Automotive and Aerospace Industries
- Increasingly used in electric vehicle motors for weight savings.
- Utilized in aerospace applications where reduced weight is a critical factor.
Production Standards and Quality Assurance
To ensure reliability, enamelled round aluminum wire is manufactured in accordance with international standards such as:
GB (China)
IEC (International Electrotechnical Commission)
NEMA (National Electrical Manufacturers Association, USA)
JIS (Japanese Industrial Standards)
Manufacturers also adhere to strict quality control measures, ensuring compliance with ISO9001, UL, RoHS, and SGS certifications. This guarantees that the wires meet high-performance benchmarks and safety requirements.
Conclusion
Enamelled round aluminum wire is an efficient, cost-effective, and durable solution for motor winding and other electrical applications. With its superior insulation, lightweight nature, and high thermal resistance, it continues to gain popularity in industries ranging from automotive to consumer electronics. As technology advances, aluminum winding wires will play an even greater role in enhancing efficiency and sustainability in electrical engineering.
Frequently Asked Questions
1. Why is aluminum used instead of copper for winding wires?
Aluminum is preferred due to its lower cost, lighter weight, and oxidation resistance, which contribute to improved efficiency and longevity in electrical applications.
2. Does aluminum wire have lower conductivity than copper?
Yes, aluminum has lower electrical conductivity than copper. However, this can be compensated for by using a slightly larger diameter aluminum wire to achieve comparable performance.
3. Can enamelled aluminum wire be used in high-temperature applications?
Yes, with temperature ratings up to 220°C, enamelled aluminum wire performs well in high-temperature environments, such as industrial transformers and automotive applications.
4. What are the common insulation materials used for enamelled aluminum wire?
The most commonly used insulation materials are polyester (PE), polyesterimide (EIW), and polyamide-imide (EI/AIW), which offer varying levels of heat resistance and mechanical durability.
5. How does aluminum wire impact motor efficiency?
While aluminum has lower conductivity than copper, its lighter weight reduces the overall mass of the motor, which can improve efficiency in applications where weight savings are crucial.
Why Choose Us
Enamelled Wires Factory Directly
As an established leader in the production of enamelled wires, we provide top-quality enamelled copper and aluminium wires from the largest and most advanced facility in China. Our patented system ensures seamless monitoring of production processes, guaranteeing the exceptional quality of our enamelled wires.
Many Years of Know-how as a Producer of Enamelled Wires
Leverage our extensive experience as a leading producer of enamelled wires. Operating from the largest and most advanced facility in China, we provide enamelled wires of superior quality. Our commitment to continuous investment in cutting-edge machinery and ongoing innovation in our research and development department ensures that we deliver products that enhance your processes and drive inspiration.
Individual Enamelled Wires Matching Your Requirements
As a producer of enamelled copper and aluminium wires, we tailor our products to meet your specific project needs. For suitable volumes, we offer customized enamelled wires from our extensive range. Our production process involves close collaboration between our sales team, application technology experts, and you, ensuring optimal results for your requirements.
Frequently Asked Question
We have ISO9001,ISO14001,IATF16949 and UL certificates.
We are a factory.
We have a special QC department with 15 inspection personnel. Quality inspection team including incoming material, process and finished product inspection
Enamelled wires are available in insulation classes F-155, H-180, and C-200, which indicate their maximum operating temperatures in degrees Celsius
The temperature ratings typically range from 130°C to 220°C, depending on the insulation class and specific application requirements.
Enamelled aluminium wires are lighter and less expensive than copper wires but have slightly lower conductivity. Copper wires, on the other hand, offer higher conductivity and better mechanical strength but are heavier and more costly
Enamelled aluminium wires are ideal for use in large motors, transformers, and other applications where weight reduction is crucial without significantly compromising conductivity.
Enamelled copper wire is preferred in industries requiring high conductivity, such as in electronics, small motors, and applications where space is limited due to copper’s superior conductivity and strength.
Yes, we can customize enamelled wires to meet project-specific requirements, including different sizes, insulation types, and performance specifications.
Enamelled CCA Wire, Enamelled Aluminum Wire, Enamelled Copper Wire
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