Which wires and cables can be applied in the aerospace industry

We know that in the fields of aerospace and locomotives, energy, steel, non-ferrous metal smelting, oil extraction, motors, etc., high-temperature resistant wires and cables with long-term continuous working temperatures of 125 ℃ -250 ℃ and above are used. The commonly used high-temperature resistant wire insulation materials in the market include radiation cross-linked PO, silicone rubber, fluororesin, polyimide, mica, magnesium oxide, etc. However, due to the requirements and complexity of the aerospace field, ordinary high-temperature resistant wires are no longer able to meet its requirements. Two new types of high-temperature resistant wires and cables have been developed for this market - PES insulated wires and cables and Peek insulated wires and cables.

Peek is a flexible resin belonging to the category of super heat-resistant thermoplastic, with outstanding creep resistance and self extinguishing properties. It can meet the UL94V-1 level (thickness of 0.3mm), 94V-0 (thickness of 1.5mm), and 94V-5 (thickness of 3.2mm) requirements without adding any flame retardants.

Peek wire and cable, as an environmentally friendly and energy-saving high-temperature wire, have a long-term continuous use temperature of 250 degrees and a UL temperature index of 250 degrees. At the same time, it can maintain good mechanical properties and electrical insulation under an irradiation dose of 1100 Mrad. Electromagnetic wires and cables using Peek polyetheretherketone as insulation material can be used as winding wires and lead wires for driving mechanical coils in nuclear reactor control systems, as well as as coil skeletons and coils for driving mechanisms in nuclear reactor control systems.

Polyether sulfone (PES) insulated wires have excellent heat resistance, physical and mechanical properties, electrical insulation properties, extrusion molding properties, especially outstanding advantages such as being able to maintain stable performance even in environments with high temperatures and rapid temperature changes: the thermal deformation temperature is between 200-220 degrees, the continuous use temperature is between 180-200 degrees, and the UL temperature index is 180 degrees; Can withstand hot water or steam at 150-160 degrees Celsius, and is not corroded by acid or alkali at high temperatures; The elastic modulus remains almost unchanged between -100 and 200 degrees, especially better than any thermoplastic resin above 100 degrees; The coefficient of linear expansion is small, and its temperature dependence is also small; It is non-toxic, recognized by the US FDA, and meets the requirements of Japanese Ministry of Health, Labour and Welfare Announcement No. 434 and No. 178; It has self extinguishing properties and excellent flame retardancy without adding any flame retardants, reaching UL94V-0 level (0.46mm).