Radiation thermal shield

furnacestainless steelhigh-temperature

Overview High-temperature furnaces can reach temperatures of up to 2800°C. Plansee offers shield packs made of refractory metals to reduce heat loss and protect furnace internals. Side, top and bottom shieldings are available and can be manufactured from molybdenum, tungsten, ML and stainless steel. Shielding concepts can be adapted to your furnace and requirements; riveted, overlapping and joint shields can be produced in any required size.

Key benefits

• Can withstand high temperatures up to 2800°C
• High process purity, no graphite contamination
• Standard versions as well as customer-specific solutions
• Energy cost optimized design
• Short process cycle times possible
• Suitable for high vacuum and ultra-high vacuum

Design and performance details Shieldings are designed using an optimized number of W, ML and Mo sheet layers to minimize furnace heat loss. Important aspects are the thermal radiation exchange between sheet layers and the intrinsically low emissivity of molybdenum. The shieldings exhibit low specific heat capacity enabling fast heating and cooling rates and short evacuation times. Molybdenum-, tungsten- and alloy-based shieldings are supplied graphite-free to ensure high process purity and are particularly well suited for high-vacuum and ultra-high-vacuum applications. Tailor-made designs are available to optimize weight and energy consumption for the specific application.

Services Installation on-site, inspection, maintenance and optimization of existing furnaces. Remote service support is available to quickly diagnose and solve issues and to minimize downtimes.

Other products for high-temperature processes

• Hot zones
• HIP cylinders
• Heating conductors
• Riveted racks
• Rotary tubes
• Combustion and sintering boats
• Furnace components
• Crucibles (formed or pressed / sintered)
• Screws, rivets, nuts

Technical characteristics / specifications

• Maximum service temperature: up to 2800°C
• Materials: molybdenum (Mo), tungsten (W), ML, stainless steel (and alloys)
• Shield types: side shieldings, top shieldings, bottom shieldings
• Construction options: riveted, overlapping, joint shields; custom sizes
• Low emissivity (notably molybdenum) for reduced thermal radiation loss
• Low specific heat capacity → fast heating and cooling rates
• Graphite-free shielding for high process purity
• Suitable for high vacuum and ultra-high vacuum environments
• Design focus: energy-optimized layout and reduced heat loss