Difference between Electromagnetic Wire and Enameled Wire

Enameled wire The conductor is coated with the corresponding lacquer solution, and then made by solvent volatilization and lacquer film solidification and cooling. Enameled wire can be divided

Enameled wire The conductor is coated with the corresponding lacquer solution, and then made by solvent volatilization and lacquer film solidification and cooling. Enameled wire can be divided into polyester enameled wire, Aluminum Magnet Wire , polyamideimide enameled wire, polyimide enameled wire, polyesterimide / polyamidoimide enameled wire, corona-resistant enameled wire, and oil-based Lacquer, acetal paint, Aluminum Magnet Wire  etc. Sometimes it is also classified according to the particularity of its use, such as self-adhesive enameled wire, refrigerant-resistant enameled wire, etc.

Early enameled wire was oily enameled wire, made of tung oil, etc. The paint film has poor abrasion resistance and cannot be directly used for manufacturing motor coils and windings. A cotton yarn wrapping layer is required when used. Later, polyvinyl formal enameled wire came out, and its mechanical properties have been greatly improved. It can be directly used for motor windings, and is called high-strength enameled wire.

With the development of weak current technology, self-adhesive enameled wires have emerged, and coils with better integrity can be obtained without dipping and baking. However, its mechanical strength is poor, and it can only be used in micro and small motors. In addition, in order to avoid the trouble of removing the paint film before soldering, a direct-soldering enameled wire has been developed, and the coating film can fall off by itself in a high-temperature tin bath to make copper wires easy to weld.

As the application of enameled wires is becoming more and more widespread, the requirements are becoming stricter, and composite enameled wires have also been developed. The inner and outer paint films are composed of different polymer materials, such as polyesterimide / polyamideimide enameled wire.

An important variety in winding wire. Early cotton yarn and silk, known as yarn covered wire and silk covered wire, were used in motors and electrical appliances. Due to the large insulation thickness and low heat resistance, most of them have been replaced by enameled wires. Currently only used as high frequency winding wires. In large and medium-sized winding wires, when the heat resistance is high and the mechanical strength is large, glass-fiber covered wires are also used, and appropriate adhesive varnishes are used during manufacture.

Enameled wire is a type of electromagnetic wire, usually refers to the insulation wire used to make coil or winding in electrical products. It is also called the winding wire.

The electromagnetic wire must meet the requirements of various applications and manufacturing processes. The former includes its shape, specification, working at high temperature in short and long time, as well as the strong vibration and centrifugal force under high speed on certain occasions, resistance to corona and breakdown under high voltage, and chemical corrosion resistance in special atmospheres, and the requirements for tensile, bending and wear, as well as the requirements of drawing, bending and wear during winding and inlaying. Swelling and erosion during immersion and drying.

The electromagnetic wire can be classified according to its basic composition, conductor core and electrical insulation layer. It is usually divided into enameled wires,winding wires, enameled wrapping wires and inorganic insulated wires according to the insulation materials and manufacturing methods used in electrical insulation.

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