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Polyester/Polyimide Covered Winding Wire

Insulation Winding Wire

Polyester/Polyimide Covered Winding Wire

Polyester/Polyimide film covered winding wire is made by copper or aluminum conductor. At first wrapped polyimide film which is coated with adhesive material on the conductor, and sintered film and film,to make it with conductor together. After heating, the fluorine on the composite film is melted, so that the film and the conductor are bonded as a whole. This product has excellent voltage resistance, thin insulation thickness and heat resistance up to 220 ºC. It is mainly used for winding of motors, reactors, welding machines or other similar electrical products. The electrical bare copper (aluminum) wire produced by extrusion process is an ideal material for producing polyimide film clad wire.

    The DetailsHeg


    Polyimide film is coated with a high temperature resistant binder and coated with a polyimide film strip. After heating, the thin film band becomes a continuous insulating layer. The winding wire has high temperature, low temperature and radiation resistance, the sealing, electrical and wear resistance. It is applied to steel rolling motor high temperature operation, traction motor, deep well pump motor and dry Transformer coil.

    For Aromatic polyimide tape-covered aluminum magnet wire, after the aluminum magnet wire is taped with a tape that is 1.5 mm thick with 1.0 mm of this thickness being polyimide film and the remaining 0.5 mm being fluoroplastic, it is heated and heat-sealed.

    Breakdown voltage of polyimide film covered copper/aluminum wireHeg


    Wrapping method

    Insulation thickness (mm)

    Breakdown voltage above

    Nominal value

    Tolerance

    Two layers polyimide self-locking wrapping

    0.15

    ±0.03

    6000

    Two layers of polymide lap wrapped in opposite directions

    0.15

    ±0.03

    6000

    Three layers of polyimide lap wrapped in oppsite directions

    0.23

    ±0.03

    7000

    Product breakdown voltage should follow below table(Non woven fabric/polyester film wrapping)Heg

     

    Wrapping type

    Insulation Thickness(mm)

    Breakdown voltage above

    Standard Value

    Tolerance

    Two layers of polyester films

    0.22

    ±0.03

    5000

    Two layers of polyester films+one layer of non-woven fabrics

    0.33

    ±0.03

    5000

    Three layers of polyester films

    0.3

    ±0.03

    7500

    Three layers of polyesters film+non-woven fabrics

    0.42

    ±0.03

    7500