Many people have seen enameled wire before, but many people don’t know how it is produced. In fact, when enameled wire is produced, a complex and complete process is generally required to see the finished product, which specifically includes wire setting, annealing, and coating. Painting, baking, cooling and winding up steps.
First of all, pay-off is to put the main materials for making enameled wires on a normally operating enameled machine. Now in order to reduce the physical loss of workers, large-capacity pay-off methods are often used. The focus of the pay-off is to control the tension and try to Even and appropriate, and the pay-off device used for different specifications of the line is different.
Secondly, annealing treatment is required after the wire payout. Annealing is to disrupt the structure of the molecular lattice, so that the wire that has become hard during the wire payout process can be heated to a certain temperature to restore the softness required by the process, and it can also remove the tension. Lubricants and oil stains in the stretching process ensure the quality of the enameled wire.
Third, after the annealing treatment is the painting process, which is to coat the enameled wire paint on the surface of the metal conductor to form a uniform paint layer with a certain thickness. Among them, different painting methods and different wire specifications have different requirements for the viscosity of the paint. Usually the enameled wire needs to be coated and baked many times to allow the solvent to evaporate sufficiently and the paint resin to completely react, thereby forming a better paint film.
Fourth, the baking process is similar to the painting process, and it needs to be cycled many times. First, the solvent in the paint solution is evaporated, and after curing, a paint film is formed, and then the paint is baked.
Fifth, when the enameled wire comes out of the oven, the temperature is higher, so its paint film is very soft and weak. If it is not cooled in time, the paint film through the guide wheel is likely to be damaged, which affects the quality of the enameled wire , So it needs to be cooled in time.
Sixth, it is the winding up process. The winding process is to wind the enameled wire tightly, evenly and continuously on the spool. Generally, the winding machine is required to have a stable transmission, a moderate tension and a neat line. After completing the above steps, it can basically be boxed for sale.
General purpose enameled wire (ordinary wire): Mainly used for winding wires in general motors, electrical appliances, instruments, transformers, etc., such as polyester enameled wire and modified polyester enameled wire.
Heat-resistant enameled wire: Mainly used for winding wires in working places such as motors, electrical appliances, instruments, transformers, etc., which work at temperatures of ℃ and above, such as polyester imide enameled wire, polyimide enameled wire, polyester enameled wire, polyester imide/ Polyamideimide composite enameled wire.
Special purpose enameled wire: refers to the winding wire that has certain quality characteristics and is used for specific occasions, such as: polyurethane enameled wire (direct welding), self-adhesive enameled wire.
Enameled wires are divided into conductor materials: copper wire, aluminum wire, alloy wire;
According to the shape of the material: round wire, flat wire, hollow wire.