The Enameled Wire is coated with the corresponding lacquer solution on the outside of the conductor, and then evaporated by the solvent and the film is cured and cooled. The enameled wire can be divided into polyester enameled wire, polyester imide enameled wire, polyamide imide enameled wire, polyimide enameled wire, oily lacquer, acetal lacquer, polyurethane enameled wire, etc. according to the insulating varnish used. Sometimes it is also classified according to its special use, such as self-adhesive enameled wire, cold-resistant lacquer coated wire, etc.
The earliest enameled wire is an oily enameled wire made of tung oil. The paint film has poor abrasion resistance and cannot be used directly in the manufacture of electric motor coils and windings. When used, it is necessary to add cotton yarn to wrap the layers. Later, the polyacetal acetal lacquer envelope was introduced, and its mechanical properties were greatly improved. It can be used directly for motor winding, and it is called high-strength enameled wire.
The enameled wire consists of two parts: a conductor and an insulating layer. The bare wire is annealed and softened, and then baked and baked. It is affected by factors such as raw material quality, process parameters, production equipment, environment, etc. It is not easy to produce products that meet the requirements of the standard and meet customer requirements. Therefore, the quality characteristics of the enamelled aluminum wire are different from the enamelled copper wire.
The quality of copper enameled wire, although it depends to a large extent on the quality of raw materials such as paint, wire and the objective conditions of machinery and equipment, but if you do not carefully deal with a series of problems such as baking, annealing, speed, etc. Relationship, do not grasp the operational skills, do not carefully do the tour operations and parking collection operations, do not do a good job of hygiene, even if the objective conditions are good, can not produce high-quality enameled wire. Therefore, the decisive factor for making the enameled wire is the person, who is responsible for the operation.