Polyurethane Enameled Wire
Polyurethane enameled wire is widely used in precision coils, motors, meters, household appliances and other weak electrical products because of its low dielectric loss, easy dyeing, high coating rate and straight solderability. Polyurethane enameled wire straight solderability refers to the coating of the enameled wire in the tin bath, at a certain temperature, the film is heat cracking into a low relative molecular mass of volatile substances, so that the destruction of the film and the ability to tin on the winding line. This makes it unnecessary to remove the coating beforehand when the polyurethane enameled wire needs to be joined, and its direct solderability simplifies the production process of the winding wire and effectively improves the production efficiency.
Polyurethane enameled wire performs well in harsh environments such as high temperature, high humidity and high altitude. Its conductors are usually made of copper or aluminum and covered with a polyurethane enameled insulation material. Polyurethane enameled wire has good heat resistance, electrical insulation properties, chemical resistance and mechanical strength. They can be widely used in aviation, aerospace, automotive, electronics, machinery and other fields. They also have good moisture resistance, oil resistance, acid resistance, alkali resistance, solvent resistance and other characteristics, and are suitable for some harsh environments.
Polynitrate enamel is an important insulating varnish for enameled wire, with excellent electrical insulation and direct solderability (i.e., without removing the varnish can be directly soldered performance), in the solder joint more color TV, instruments, computers and other industries have a wide range of applications. The development of science and technology on polyurethane enameled wire has put forward higher requirements, such as color TV localization project in the color TV deflection coil with poly-nitric acid enameled wire, required to resist more than 300 volts of high voltage, softening breakdown temperature of 25 ℃ or more, no salt water pinhole, acid resistance, alkali resistance, aging resistance, but also must maintain the excellent straight solder characteristics of polyurethane Moet enameled wire.
