Copper wire knowledge
Copper wire is a metal wire drawn from hot-rolled copper rods. It has good electrical conductivity, thermal conductivity and ductility, as well as excellent mechanical properties and easy welding. Types of copper wire include brass, copper and phosphor copper. Brass wire contains 65% copper and 35% zinc, copper wire has a purity of up to 99.8%, and phosphor copper wire contains 85%-90% copper and 5%-15% tin. Copper wire is widely used, including but not limited to weaving nets, cables, copper brush filters, etc. In addition, copper wire is also used in industrial filtration, petrochemicals, printing, wire and electronic hardware parts processing, cold heading rivets and screws, avionics accessories and telecommunications devices, connector riveting performance, decorations, embedded fishing lines, etc. Due to its excellent electrical conductivity, copper wire is also often used as a conductor. Although silver has stronger conductivity, copper wire is widely used due to its low cost.
In the production process of copper wire, wire drawing is an important link, including multiple processes, such as softening (annealing), mold selection, and the use of wire drawing oil, to ensure the quality and performance of copper wire. The wire drawing process not only involves the selection of copper materials, but also includes the selection and use of equipment, molds, and wire drawing oil to ensure that the produced copper wire meets the specifications.
In addition, copper wire can be further processed according to its use and performance requirements, such as making enameled wire, that is, coating the surface of the copper wire with insulating paint, heating and drying, and used to manufacture communication and power cables, electrical machinery, and various household appliances. The wide application of copper wire and its contribution to human civilization reflect the important value of copper as one of the earliest metals discovered by humans.
