The reason why the silicone flexible cable does not choose aluminum alloy as the conductor is because aluminum alloy is not conducive to use, which can be summarized into the following aspects:
1. The corrosion resistance of aluminum alloy is weak. We know that aluminum alloy generally contains elements such as magnesium, copper, zinc, and iron. Therefore, during the heat treatment process, it is easy to cause uneven physical state of the silicone flexible cable, resulting in the relatively weak corrosion resistance.
2. Secondly, in terms of temperature resistance, the melting point of aluminum alloy is 660℃. When a fire occurs, the conductive function of the silicone flexible cable cannot be guaranteed, which increases the difficulty of rescue.
3. The thermal expansion coefficient of aluminum alloy is relatively high, and the conductor expand when heated and contract when cooled, posing safety risks.
4. The conductor is easily oxidized, and the oxidized conductor has a great influence on the conductivity and stability of the silicone flexible cable.
5. The aluminum alloy joint process is so complicated that can't be constructed easily, which will cause safety hazards easily.
In addition, there is no uniform standard for aluminum alloy, and problems such as increased capacitance current, short service life, and high maintenance cost need to be resolved. Therefore, aluminum alloy as a conductor of silicone flexible cable needs to be improved.