Many people have seen enameled wire before, but they do not know how it was produced. In fact, when producing enameled wire, it generally requires a complex and complete process to finish products, which specifically includes the steps of paying-off, annealing, painting, baking, cooling, and winding up.
First of all, paying-off refers to placing the main materials on a normally operating enameling machine. Nowadays, in order to reduce the physical loss of workers, large-capacity paying-off is often used. The key to paying-off is to control the tension, making it as uniform and appropriate as possible, and the paying-off devices used for different specifications of wire are also different.
Secondly, annealing treatment is required after paying-off, which aims to disrupt the structure of the molecular lattice, allowing the wire that hardens during the paying-off process to recover to the required softness after being heated at a certain temperature. In addition, it can also remove lubricant and oil stains during the stretching process, ensuring the quality of the enamelled wire.
Thirdly, after annealing, there is a painting process, which involves applying enameled wire paint to the surface of a metal conductor to form a uniform paint layer of a certain thickness. Different painting methods and wire specifications have different requirements for the viscosity of the paint. Generally, enameled wires require multiple coating and baking processes to allow the solvent to evaporate sufficiently and the paint resin to react, thereby forming a relatively good paint film.
Fourth, baking is similar to the painting process, and requires repeated cycles. It first evaporates the solvent in the lacquer, and after curing, a lacquer film is formed, and then the lacquer is applied and baked.
Fifth, when the enameled wire comes out of the oven, the temperature is high, so its paint film is very soft and has low strength. If it is not cooled in a timely manner, the paint film passing through the guide wheel may be damaged, affecting the quality of the enameled wire, so it needs to be cooled in a timely manner.
Sixth, it is winding up. The winding process involves tightly, evenly, and continuously winding the enameled wire onto the spool. Generally, the take-up machine is required to have stable transmission, moderate tension, and neat wiring. After completing the above steps, it is basically ready to be packaged for sale.
Post time: Apr-01-2023