1. Acetal Enameled Wire(XINYU-ENAMELEDWIRE), with thermal grades i05 and 120, has good mechanical strength, adhesion, transformer oil resistance and refrigerant resistance. However, the product has poor moisture resistance, low thermal softening breakdown temperature, weak durability of benzene-alcohol mixed solvent and other defects. Currently, only a small amount of acetal enameled wire is used for windings of oil-immersed transformers and oil-filled motors.
2. Polyester and modified polyester enameled wire, ordinary polyester enameled wire, thermal grade 130, modified enameled wire thermal grade 155. This product has high mechanical strength, good elasticity, scratch resistance, adhesion, electrical properties and solvent resistance. It is currently one of the largest varieties in China, accounting for about 2/3. It is widely used in various motors, electrical appliances, meters, telecommunications equipment and household electrical appliances. The weakness of this product is poor thermal shock resistance and low moisture resistance.
3. Polyurethane enameled wire with thermal grades of 130, 155, 180 and 200. Its biggest characteristic is its direct weldability, good high-frequency resistance, easy colouring and good moisture resistance. It is widely used in electronic household appliances, precision instruments, telecommunications and meters. Its weakness is slightly poor mechanical strength, low heat resistance and poor flexibility and adhesion of large-size wires. Therefore, the specifications of this product are mostly small and medium-sized wires.
4. Polyesterimide/Polyamide Composite Enameled Wire, Thermal Grade 180 This product has good thermal shock resistance, high softening and breakdown temperature resistance, excellent mechanical strength, good solvent resistance and cryogen resistance, and its weakness is easy hydrolysis under closed conditions. It is widely used in windings with high heat resistance requirements such as motors, electrical appliances, meters, electric tools, electric power dry pressure devices, etc.
5. Polyesterimide/polyamide-imide composite enameled wire enamel is widely used at home and abroad at present. Its thermal grade is 200. The product has high heat resistance, cryogen resistance, severe cold resistance, radiation resistance and other characteristics, high mechanical strength, stable electrical performance, good chemical resistance and cryogen resistance, and strong overload capacity. Widely used in refrigerator compressors, air conditioning compressors, electric tools, explosion-proof motor and motors and electrical appliances used under high temperature, high cold, radiation resistance, overload and other conditions.
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