Because of the rapid development of motor manufacturing level at home and abroad, especially the environmental protection of the motor structure and production process with high output power and as small as possible, the paper puts forward strict technical requirements for winding winding of motor stator parts: for example, it is required that the winding wire has the performance of voltage resistance, corona resistance, high strength and flexibility.
 
Polyester imide MIA winding aluminum flat wire is a main type of winding wire, which consists of two parts of conductor and insulation layer. After annealing and softening, the bare wire is baked after being painted for many times. However, it is not easy to produce products that meet the requirements of standards and meet the requirements of customers. It is affected by the quality of raw materials, process parameters, production equipment, environment and other factors. Therefore, the quality characteristics of various paint coating lines are different, but they all have four major properties: mechanical, chemical, electrical and thermal properties.

 
The conductor polyester imide MIA winding aluminum flat wire includes a conductor and an insulating layer, the conductor is an aluminum flat wire; The insulation layer is a layered structure, and along the radial direction of the aluminum flat wire, the polyimide film, mica tape, the first insulating resin paint layer, double glass wire, the second insulating resin paint layer and the self-adhesive coating are successively arranged along the radial direction of the aluminum flat wire.
 
The resistance to voltage breakdown of the winding wire is improved by polyimide film; The use of mica improves the corona resistance of the winding wire, and the glass wire improves the strength and flexibility of the winding wire; The self adhesive paint can be used to shape the coil after heating, and it is widely used in motors without frame;
 
As a high-performance motor and electrical winding wire, polyester imide micro winding aluminum flat wire has the characteristics of high-tech and low cost new materials;