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Polyamideimide For Enameled Wire

Polyamideimide enamel is popular insulation materials for enameled wire used for transformer & motor windings, thermal class is 180C or 200C.

  • Applications of Polyamide-Imide Enamels for Enameled Wire

    Polyamide-imide enamel is a multifunctional, high-performance polymer widely utilized as primary electrical insulation. Renowned for its high thermal performance, chemical and wear resistance, and low friction coefficient, this material finds extensive use not only in electrical insulation but also in other industries such as paints, extrusions, and films. Recent advancements in polyamide-imide enamels are paving the way for innovations in magnetic wire coatings, including corona-resistant enamels, self-lubricating options, and those with enhanced wear resistance, offering exciting opportunities for future developments.

  • High-Performance Coatings for Electrical Applications

    Advanced Features of Polyamide-Imide Enamel

    Polyamide-imide enamel is versatile, capable of being applied in up to 30 layers on copper and aluminum wires. This multilayer insulation system effectively prevents short circuits in winding applications. Its outstanding characteristics include:

    • Superior chemical and heat resistance, ensuring long-term durability.
    • Excellent adhesion to copper and aluminum substrates.
    • Mechanical stability, ideal for demanding environments.

    For specialized applications like inverter-driven motors, the enamel provides crucial protection against partial discharge, a phenomenon that can lead to motor failure or short circuits.

    Customizable Coating Configurations

    Polyamide-imide coatings are available in both single-layer and double-layer systems, with thickness options ranging from 0.05 mm to 2.6 mm. These coatings maintain excellent insulation and protection for magnetic lines at operational temperatures of approximately 180°C. When used as a top coat over polyester or polyester-imide primers, polyamide-imide enhances the mechanical, chemical, and thermal properties of the base coating.

  • Applications in Magnetic Wire Technology

    1. Dry Transformers, Generators, and Power Tools
      • Polyamide-imide enamels, often combined with lubricants, facilitate faster winding speeds and are tailored for use in dry transformers, generators, and motors.
    2. Flat Wire for High Voltage Equipment
      • These coatings are particularly well-suited for large transformers and high-voltage equipment, offering unparalleled thermal stability and chemical resistance.
    3. Flexible Top Coats and Single Coating Options
      • In addition to their use as flexible top coats, polyamide-imide enamels can serve as a single coating for flat wire applications, ensuring optimal performance in copper and aluminum wiring systems.