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Enamelled copper wire is the core of motors and coils.

2022-07-20

1. The function and structure of enameled copper wire

Enamelled wire is a general term for copper wires that utilize the law of electromagnetic induction to achieve mutual conversion between electrical energy and magnetic energy. It serves as an essential raw material for core components such as motor windings in automobiles, industrial motors, home appliances, electronic devices, and inductive coils used in communication equipment. With the rapid advancement of the modern chemical industry, today’s enamelled wires employ synthetic resins as insulation coatings, offering a wide variety of types—from acetal resins with excellent resistance to transformer oil to polyimide resins that withstand high temperatures. Moreover, there are also synthetic enamelled wires coated with multiple types of resins. As for conductor materials, they have evolved from solely copper to a range of metallic materials, and their shapes have expanded from the original simple circular cross-section to include various forms, such as nearly rectangular flat wires.

2. Development History of Enamelled Copper Wire and the Company’s Main Products

During motor winding, it is generally desirable to enhance the motor’s performance—specifically, to maximize the slot fill factor (the ratio of the conductor area of the wire inside the motor slot to the slot’s overall area). To achieve this, we aim to wind as much enameled wire as possible into the slot, which in turn places stringent demands on the processability of the enameled wire. In actual motor winding operations, it is relatively common for the enameled wire to suffer damage due to friction with the winding jigs. To mitigate this issue, we need to address it from two key angles: first, enhancing the adhesion between the wire’s insulation film and the conductor itself; and second, reducing the insertion force between the enameled wire and the winding jig. For this reason, our company has developed the UTZ and HGZ series, which offer superior processability. By improving the lubricity and wear resistance of the enameled wire, the UTZ and HGZ series make the wire better suited to demanding processing conditions. Moreover, these products exhibit excellent resistance to refrigerants, making them particularly well-suited for use in refrigerant environments. As a result, they are widely employed in the manufacture of high-efficiency compressors with high slot fill factors.

The coating method for enameled wire

What details should be paid attention to when making enameled wire?

The coating method for enameled wire

What details should be paid attention to when making enameled wire?

Company News

2024-09-25

Pan Lei, Mayor of Guixi City, accompanied by environmental protection and investment promotion leaders, visited the company for a research visit.

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Industry Trends

2024-05-21

A leader in technology and quality among silver-plated wire manufacturers.

In high-tech fields such as electronics, telecommunications, aerospace, and defense industries, silver-plated wires—high-performance conductors—are highly favored for their excellent electrical conductivity, thermal conductivity, corrosion resistance, and ability to withstand high temperatures and oxidation. The manufacturers behind these silver-plated wires are the very pioneers in technology and the key producers of these premium-quality products. The technological prowess of silver-plated wire manufacturers serves as the fundamental guarantee of their product quality. Typically, these manufacturers have a dedicated R&D team that continuously introduces new technologies and processes, striving to enhance both the performance and quality of silver-plated wires. They conduct in-depth research into the silver-plating process, optimizing the thickness and density of the silver coating to improve its corrosion resistance and antioxidant properties. At the same time, they rigorously screen raw materials, ensuring that high-quality oxygen-free copper is used as the substrate, thereby further boosting the conductivity and thermal conductivity of the silver-plated wires. The production process of silver-plated wires is a meticulous and complex procedure. Before starting, manufacturers pre-treat the raw materials to remove surface oils and oxides, ensuring the purity of the substrate. Next, the substrate is placed in silver-plating equipment, where a thin layer of silver is electroplated onto its surface through electrolysis or other methods. Following this, the wires undergo processes such as drawing and annealing to achieve the desired diameter and performance characteristics. Finally, manufacturers subject the silver-plated wires to stringent quality inspections.

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Industry Trends

2024-05-11

The core material in the electrical wire industry—enameled copper round wire.

In the electrical industry, enameled copper round wire is an indispensable wire material. Widely used in electrical equipment, electronic devices, household appliances, and other fields, it facilitates the conversion of electromagnetic energy and plays a crucial role in key devices such as motors and transformers. This article introduces the characteristics, manufacturing processes, and application areas of enameled copper round wire. Enameled copper round wire, also known as winding wire, consists primarily of two parts: the conductor and the insulation layer. The conductor is typically made from high-purity electrolytic copper, which boasts excellent electrical conductivity. The insulation layer is formed by coating the conductor surface with a special insulating varnish that, after being cured at high temperatures, develops outstanding insulating properties and wear resistance. A distinctive feature of enameled copper round wire is the tight bond between its conductor and insulation layer, which not only ensures superior electrical conductivity but also effectively prevents short circuits and leakage currents. The production process of enameled copper round wire involves multiple stages. High-purity electrolytic copper undergoes a drawing process to produce copper wires with gradually decreasing cross-sectional areas and increasing lengths. These copper wires are then coated on their surfaces using specialized painting machines; the applied varnish is subsequently cured in a drying oven, forming a uniform insulating layer. After painting, the copper wires undergo diameter adjustments to meet the requirements of various application scenarios. Through lamination and finishing processes, the enameled wire achieves a more robust insulation structure and enhanced performance.

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Industry Trends

2024-05-01

A pioneer in the development of the silver-plated wire industry

In the wire and cable industry, silver-plated wire manufacturers, with their sophisticated technology and high-quality products, have become a vital driving force behind industry development. These manufacturers not only possess advanced production equipment and cutting-edge technologies but also boast professional R&D teams and rigorous quality-control systems, ensuring that they deliver top-notch silver-plated wire products to their customers. Silver-plated wire is a type of conductor in which a layer of silver is electroplated onto a copper core, offering exceptional electrical conductivity, thermal conductivity, and corrosion resistance. It finds extensive applications in fields such as electronics, telecommunications, aerospace, and more. The production processes of silver-plated wire manufacturers strictly adhere to national standards and industry regulations; every stage—from raw material procurement to product shipment—is meticulously controlled to ensure that the products meet the highest quality and performance standards. Among the many silver-plated wire manufacturers, some companies stand out due to their strong technological capabilities and market competitiveness. These manufacturers place great emphasis on technological innovation and product R&D, continuously introducing new types of silver-plated wires to meet the ever-changing demands of the market. They actively expand both domestic and international markets, establishing long-term, stable partnerships with numerous enterprises and earning widespread customer trust and positive feedback. In addition, silver-plated wire manufacturers pay close attention to environmental protection and sustainable development. During the production process, they adopt environmentally friendly materials and processes to minimize their impact on the environment. They also strengthen waste management and recycling efforts, thereby achieving resource conservation and sustainability.

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Specializing in the R&D, production, and manufacturing of fine and specialty enameled wires.

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