The direct soldering of round enameled wire generally refers to polyurethane enameled wire, which can not remove the surface film and directly solder. The most important features are resistance to direct soldering, good high-frequency performance, easy coloring, and good moisture resistance. It is widely used in electronic appliances and precision instruments, telecommunications, and instrumentation. The product has weak mechanical strength and poor heat resistance. The flexibility and adhesion of the production line are not high and the adhesion of the production line is poor, so there are more production lines with small and thin production specifications.

Enameled wires can be divided into conventional self-adhesive enameled wires and thin wires. Electromagnetic wires are mainly used in the production of electronic components such as conventional relays, micro motors, electronic transformers and solenoid valves. Refers to a thin wire with an outer layer composed of a self-adhesive wire and a self-adhesive film layer coated with an insulating film. Mainly used in electro-acoustic equipment, miniature relays, electronic watches, miniature wire circumference, coreless motors, non-contact IC cards and other electronic components and electronic products. It is a new energy-saving and environmentally friendly material. Compared with the conventional copper magnet wire, its self-adhesive wire has a smaller diameter and does not require auxiliary materials such as a skeleton during the winding process, which can greatly reduce the weight and volume of the winding and is more suitable for micro and small electronic components Electronic products.