Scrap Wiki
Enamelled wire, also known as winding wire or magnet wire, is a thin wire made of conductive metal material (usually copper or aluminum) with a very thin layer of insulating paint on its surface. This insulating paint is typically made of resin materials such as polyester, polyimide, polyamide, and polyetherimide, used for electrical insulation and mechanical protection. Enamelled wire is widely used in electronic and electrical devices, often found in various coils, such as motors, transformers, electromagnets, speakers, hard disk drive motors, and other types of inductive devices. Due to the presence of the insulating paint, even if the coils are tightly wound, there will be no short circuit between adjacent coils. Enamelled wire is classified into different types according to the heat resistance level and performance of the insulating paint, such as 130, 155, 180, 200, and 220 levels, which represent the highest temperature (in Celsius) that the coil can withstand in continuous operation. When using enamelled wire, to make the conductive ends of the wire solderable or connectable to other conductive parts, the insulating paint usually needs to be removed at the ends, which can be achieved through mechanical grinding, chemical stripping, heat burning, or using special paint strippers.
