Vacuum Hot Press

Hot pressing has a limited field of application for such materials which do not sinter to high densities due to low diffusion coefficients or for cases where a pore-free state is required (for optimum mechanical, thermal or optical properties).
With this process only parts with simple shapes like plates, blocks, cylinders can be manufactured easily. With a highly sophisticated design of pressing dies also more complex shapes can be produced.
Available pressing force: 50 kN to 9000 kN at max. 2500°C, applicable for components of max. Ø 700mm.

Application of hot pressing in the field of ceramics include:

• Silicon nitride, mixed ceramics of Al₂O₃, TiC/TiN and sialon for cutting tools, components of heavy-duty valves, bearings, wear parts for process technology.
• PLZT (lead-lanthan-zircon-titanate) and other high developed functional ceramic (O₂ atmosphere)
• Boron carbide (B₄C) for extremely wear resistant parts and armors.
• SiC whisker reinforced Al₂O₃ for cutting tools
• MMC and CMC materials, composite materials
• Sputter targets

Hotpressing technology is applied variously in fundamental research and production. 

Standard furnaces:

• Type HP W - resistance heated for hot pressing of special materials, structural ceramics and composites
• Type HP P - multi-purpose hot press system, gas pressure 10 bar