High-temperature silicone cable has excellent properties such as oil resistance, water resistance, abrasion resistance, acid and alkali resistance and various corrosive gases, aging resistance, non-combustion, etc., so it is widely used in metallurgy, electric power, petrochemical and other industries.
General electric wires and cables are insulated and sheathed with plastic and rubber. These materials are conventional engineering materials, have abundant sources, can meet mass production, and the cost is relatively low. However, for some special industries such as petrochemical, steel, aerospace, shipbuilding, military, pharmaceutical, food, plastic machinery, boilers and other industries related to heat and high temperature, wires and cables that can withstand a certain higher temperature are required. Ordinary wires Obviously, the cable cannot be used, and the high-temperature silicone cable can ensure the safe operation of its power and signal.
With the rapid development of economy, the demand for high-temperature silicone cables in special industries has shown rapid growth. High-temperature silicone wires are growing at an annual rate of 20%. As an important part of special cables, high-temperature silicone cables have strong vitality, whose demand exceeds supply.
The wire and cable insulation and sheath we generally use are ordinary engineering rubber and plastic as the basic resin, but the requirement is insulation level. Common rubber materials for cables include: butadiene rubber, ethylene-propylene rubber, natural rubber and chlorosulfonated polyethylene, etc., and the working temperature is (60～75) ℃; common cable plastic materials include polyvinyl chloride, polyethylene (including cross-linked polythylene) , the working temperature is (70～90)℃. It can be seen that these cables are not strictly high-temperature silicone cables.
Heat-resistant cables generally refer to cables at (90-155)°C and below, while high-temperature silicone cables are cables at 180°C and above. To solve the problem that ordinary cables are not resistant to high temperatures, it is necessary to improve the materials or use insulation-grade materials that can withstand high temperatures.