Enamelled wire is a main variety of winding wire, which is composed of conductor and insulating layer. The tree wire is annealed and softened, painted and baked for many times. With the continuous development of torque converter, motor, transformer, engine and other manufacturing industries, the continuous change of application environment and the continuous progress of science and technology, special enamelled wires with high current and voltage resistance are needed in more and more occasions. It is not easy to produce products that meet both standard requirements and customer requirements. It is affected by raw material quality, process parameters, production equipment, environment and other factors, and the quality characteristics of various enamelled wires are different.
 


Dual coating frequency conversion enamelled aluminum wire comprises a conductor, the outer surface of the conductor is covered with a composite paint film layer, wherein the conductor is an aluminum round wire, and the composite paint film layer is composed of primer and finish. The primer is coated on the outer surface of the conductor, the finish is coated on the outer surface of the primer, the primer is frequency conversion resistant resin paint, and the finish is refrigerant resistant polyamide imide polyester paint, The diameter of the cross section of the aluminum round wire is 0.3mffl-2.5mm.
 
Dual coating frequency conversion enabled aluminum wire has improved its frequency conversion resistance. At the same time, the use of a polyamide imide polyester paint has better freezing resistance and solvent resistance. It can be applied to motor and electrical products with deteriorating environment such as high temperature and overload. The voltage resistance of the composite enamelled wire of the utility model is significantly improved, the voltage resistance time reaches 3min (ordinary: withstand 8Kv time 40s), and the pulse performance is also improved. Moreover, due to the adoption of aluminum round wire, the effects of low cost and product weight reduction are realized at the same time.