Jul 10 , 2025
High-density calcium silicate boards are renowned for their exceptional high-temperature resistance, high strength, low thermal conductivity, and dimensional stability. However, they also possess a crucial application in industrial settings: as electrical insulation material. Their non-conductive nature, combined with these high-temperature properties, makes them an ideal choice for many high-voltage, high-temperature, or structurally supportive insulation requirements.
1. Induction Furnace Coil Support & Insulation:
o Application: In medium- and high-frequency induction heating furnaces, these boards are used to support the induction coils and provide electrical insulation between the coils and the furnace body or crucible.
o Advantages: High-density calcium silicate boards exhibit excellent dielectric strength and volume resistivity, ensuring effective insulation even under high voltage and frequency. Simultaneously, their high mechanical strength ensures coil stability during high-temperature operation and mechanical stresses, preventing coil deformation or short circuits. They also effectively block heat transfer from high-temperature zones to the coils, protecting the coil's insulation layer.
2. Electrical Equipment Insulation Barriers:
o Application: In various power equipment such as high-voltage switchgear, transformers, and electric arc furnaces, they serve as inter-phase or ground insulation barriers, supports, and liners.
o Advantages: They provide reliable electrical isolation, preventing arc discharge and short circuits. Their flame-retardant and non-combustible properties also enhance equipment operational safety. Additionally, their structural strength offers necessary mechanical support.
3. Electric Heating Furnace Linings & Component Supports:
o Application: In electric heating furnaces (e.g., resistance furnaces, muffle furnaces), they are used as insulating linings for the furnace chamber, as well as structural and insulating components supporting heating elements (like electric resistance wires, silicon carbide rods).
o Advantages: The material's non-conductive nature ensures current flows only through the heating elements, preventing short circuits to the furnace structure. Concurrently, it can withstand the high temperatures of heating elements, providing stable support and effectively preventing heat loss, thereby improving furnace efficiency.
4. Insulation Gaskets & Spacers:
o Application: In various high-temperature or high-pressure environments, they serve as insulating gaskets and spacer blocks between equipment parts or components, preventing the transfer of heat or electrical current.
o Advantages: They are easily machined into various precise gasket shapes, providing reliable electrical and thermal insulation.
High-density calcium silicate boards, functioning as electrical insulation material, leverage their unique combination of non-conductivity, high-temperature resistance, mechanical strength, and dimensional stability. This makes them a safe and reliable solution for electrical equipment and heating systems in complex industrial environments that demand high voltage, high temperature, or structural support, ultimately enhancing equipment performance and operational safety.
