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Long Fiber Rigid Felt

At present, Vulcan has mastered all the carbon fiber felt-making technologies, and has independently developed a method of producing solidified felt using carbon fiber soft felt as raw material, and forming it in one step through high-temperature graphitization at 2400℃.
优点
High mechanical strength
Good thermal insulation
Outstanding thermal stability
High purity, low impurity content
Excellent shock and corrosion resistance
Long service life

Application

Mainly used in high temperature environment under vacuum or inert gas protection, such as semiconductor crystal growth furnace, photovoltaic single crystal silicon/polycrystalline silicon furnace, optical fiber preform and drawing furnace, sapphire growth furnace, high-end metal heat treatment furnace, etc.

Performance Indicators

Performance Indicators Units Vulan Models
VU-LHF-HPD VU-LHF-HPW VU-LHF-HVO VU-LHF-SPG VU-LHF-SVG
Density g/cm³ 0.16±0.02 0.16±0.02 0.18±0.02 0.25±0.02 0.2±0.02
Carbon Content wt >99.9 >99.9 >99.9 >99.9 >99.9
Heat-Treatment Temperature 2400 2400 2400 2400 2400
Average Thermal Conductivity 1000℃ W/(m·K) 0.23 0.18 0.17 0.44 0.27
Ash Content ppm <20 <20 <20 <200 <200
Compressive Strength Mpa 1.80 1.50 1.20 2.31 1.45
Bending Strength Mpa 1.33 1.26 1.00 1.80 1.10
Usage
Environment
Vacuum 2400 2400 2400 2400 2400
Inert Gas 3200 3200 3200 3200 3200
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