Electromagnetic wires are insulated wires used to make coils or windings in electrical products. Also called winding wire. Electromagnetic wires can be classified according to their basic composition, conductive wire core and electrically insulating layer. Generally, it is divided into Enameled Wire, wound wire, enameled wound wire and inorganic insulated wire according to the insulation data and manufacturing method used for the electrical insulation layer.

Enameled wire:

The conductor is coated with the corresponding paint solution, and then is prepared by solvent evaporation, paint film curing and cooling. The enameled wire can be divided into polyester enameled wire, polyester imide enameled wire, polyamide imide enameled wire, polyimide enameled wire, polyester imide/polyamide imide enameled wire, corona resistant enameled wire, oily paint, acetal paint, polyurethane enameled wire, etc. according to the insulation paint used. Sometimes they are also classified according to the particularity of their use, such as self-adhesive enameled wires, cryogen-resistant enameled wires, etc. Because enameled wires are increasingly widely used and demand is increasingly severe, composite enameled wires have also been developed. The inner and outer paint films are made of different polymer materials, such as polyesterimide/polyamideimide enameled wires.

Wrapping:

An important variety of winding wires. Early use of cotton yarn and silk, known as yarn and silk wrap, was used in electrical machines and appliances. Because of the large insulation thickness and low heat resistance, most of them have been replaced by enameled wires. Currently only used as high frequency winding wire. In large and medium-sized standard winding wires, when the heat-resistant grade is higher and the mechanical strength is higher, glass wire wrapping wire is also selected, and proper adhesive paint is matched during manufacturing.

Inorganic insulated wire:

When the demand for heat resistance level exceeds the limit of organic materials, inorganic insulating paint is generally selected for coating. Existing inorganic insulation wires can be further divided into glass film wires, oxide film wires, ceramic wires, etc.

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