Polyacrylonitrile-based graphite felt is obtained by special high-temperature graphitization treatment of acrylonitrile-based carbon felt. It has light weight, good interference,
High purity, high carbon content, high temperature resistance, corrosion resistance, low thermal conductivity, and a high degree of shape retention. It is suitable for polycrystalline silicon, single crystal silicon, and single crystal silicon preparation furnaces. Excellent thermal insulation material is also anti-corrosion filter material.
Polyacrylonitrile-based carbon felt has 90% voids in the carbon felt, so it has excellent thermal insulation performance in vacuum or inert atmosphere.
Especially stable performance under high temperature conditions. Because of its light weight, small specific heat capacity, soft texture, good thermal insulation, and convenient operation,
It is especially suitable for high-temperature vacuum furnaces with intermittent operation, which can save a lot of energy. It is an excellent thermal insulation material for vacuum metallurgical industrial furnace equipment.