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Materials:

Literature:

Please contact me for additional information or to discuss your unique application.

Contact - Karl Schmidt
karl.schmidt@sglcarbon.com
SGL Group - The Carbon Company
(440) 623-5680

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High-temperature processes such as the heat treatment of metals under vacuum or inert gas require customized furnace concepts and equipment.

From design and engineering concepts to materials and finished products, the SGL Group offers all components from a single source. This means that application- and customer-optimized solutions can be developed and carbon fiber-reinforced carbon (CFC) charging systems for metal hardening can be matched precisely to the requirements of both furnace builders and operators, together with graphite heaters and insulation materials in graphite foil and felt.

SIGRATHERM® rigid felt is a shape-retentive insulating material made of graphite fibers and a carbon binder. Its properties are governed by the precursor, the type and quantity of the binder, its compression ratio and thermal treatment. The material is carbonized and graphitized. It is suitable for temperatures up to 2,200°C and used in the form of self-supporting boards, cylinders and other components, mainly in high-temperature furnace applications.

• Linings, electrical heating systems, components, supports, charging rails, susceptors made of graphite or carbon/carbon (SIGRABOND®) for high temperature furnace construction
• Flexible and rigid felt (SIGRATHERM®) for thermal insulation
• SIGRATHERM® "MFA-FF" Rigid Fiberboard Insulation - Inquire Here
• SIGRAFLEX® graphite foils for insulation
• SIGRAFLEX® laminated sheets for electrical heating elements
• Dies and support plates for brazing processes
• Charging systems and furnace equipments made of graphite and CFC (SIGRABOND®) for hardening, sintering, brazing and coating processes
• Sandwich insulation cylinders for HIP sintering processes
• Molds made of graphite or C/C for manufacturing aerospace components
• Charging plates, discs, charging systems and equipments for cemented carbide production and CVD/PVD coating processes
• Boats, crucibles and other containers, liners, heaters, heating tubes for cemented carbide production

SIGRABOND® Charging Systems for High-Temperature Applications. Charging systems made from SIGRABOND® carbon fiber-reinforced carbon provide a number of advantages over systems made of high-temperature steel or molybdenum-chromium or nickel-chromium alloys.

High thermal stability, combined with the low density typical of fiber composite materials, allows filigree structures with low intrinsic weight. These properties mean that charge weights can be increased and process times reduced, since the thermal mass involved is much lower than with metal charging systems.

Low thermal expansion and high creep resistance of our SIGRABOND® charging systems guarantee that the workpieces do not undergo distortion. In close cooperation with our product development, design and production services, we work out customized solutions for the application concerned.

Application fields:

• Gas carburizing
• Vacuum soldering
• CVD coating
• PVD coating
• Sintering applications
• Any type of thermal treatment under vacuum and/or protective gas