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Hard Felts
Asphalt-based hard felt
Asphalt-based hard felt is a high-performance material obtained through specific processes such as extrusion or lamination of asphalt-based carbon fiber felt. This material inherits the high strength, high modulus, and excellent chemical resistance of asphalt-based carbon fibers. Furthermore, through optimized processing, its thermal stability and mechanical properties are enhanced, satisfying rigorous application requirements.
Viscose-based hard felt
Viscose-based hard felt typically refers to a high-performance composite material obtained through special processing using viscose-based carbon fiber felt as the reinforcing material. This material not only retains the lightweight, high strength, and high modulus characteristics of viscose-based carbon fibers but also exhibits excellent mechanical properties and chemical stability. As a high-performance composite material, it demonstrates unique application potential in the photovoltaic and semiconductor industries.
PAN-based hard felt
PAN-based hard felt is made from polyacrylonitrile (PAN) fibers through a special process. It possesses high strength, high modulus, good heat resistance, and corrosion resistance, making it the preferred material in aerospace, energy, and high-temperature heat treatment equipment. PAN-based hard felt maintains stable physical properties in high-temperature environments, resisting melting or deformation. Additionally, its low thermal conductivity and excellent thermal shock resistance make it suitable for use in high-temperature furnaces such as single crystal furnaces and polycrystalline furnaces.
Cured felt
The cured felt is made from carbon fiber materials and resin-based materials through high-temperature treatment. It can be used for thermal insulation and protection in various fields such as semiconductors, photovoltaics, powder metallurgy, and for single crystal CZ or polycrystalline ingots, industrial sintering, etc. It can withstand heat up to 3000°C in vacuum or inert atmosphere. This insulation cylinder exhibits excellent thermal insulation and processing properties, while its ash content can be controlled below 20ppm.
Extrusion hard felt
Extrusion hard felt is usually formed by extrusion process based on high-quality fiber raw materials. In the extrusion process, with the help of a specific mold and applied pressure, the fibers are tightly arranged and interwoven, and finally form a rigid felt-like material with certain shape, density and strength.
Headquarters Address: Building 33, Lane 850, Lanfeng Road, Fengxian District, Shanghai
Contact number: 021-34635315
Email: info@qcarbons.com
Headquarters Address: Building 33, Lane 850, Lanfeng Road, Fengxian District, Shanghai
Contact number: 021-34635315
Email: info@qcarbons.com
