240 grade aromatic polyamide imide enameled copper round wire is a special enameled wire with outstanding high temperature resistance. Its technical characteristics, application fields, and market situation are as follows:
>> Technical Characteristics And Performance Indicators
Temperature resistance level: This product has a temperature resistance level of 240 (240 ℃ for long-term use), making it the highest temperature resistant enameled wire in China and suitable for extreme high temperature environments
Insulation performance: By introducing aromatic and siloxane groups, the adhesion, surface smoothness, and curing degree of the paint film are significantly improved. The breakdown voltage is ≥ 10.0kV, and the paint layer does not crack during thermal shock testing (280 ℃/30min)
Mechanical properties: Elongation rate of 10% -15%, static friction coefficient ≤ 0.08, excellent softness, supporting high-speed winding process
Other characteristics: Chemical corrosion resistance, radiation resistance, corona resistance, meeting the special needs of variable frequency motors, aerospace and other fields
>> Application Fields
High end industrial field: Mainly used for aviation, aerospace, nuclear power equipment, as well as special electric tools, variable frequency motors and other occasions that require high temperature resistance and corona resistance
Alternative imports: Previously, China relied on imports, with prices 3-5 times higher than ordinary enameled wire. However, after localization, costs have significantly decreased, making it an ideal substitute for imports
>> National Standards And Production Processes
Standard basis: Complies with GB/T 6109.22-2008 "Enamelled Round Winding Wire Part 22: Class 240 Aromatic Polyimide Enamelled Copper Round Wire"
Process innovation: Adopting thin paint multi coating, low-temperature drying, and one-time high-temperature imidization process to solve the problems of delamination and cracking, ensuring the integrity of the paint film
