Fluidised Bed Furnaces
A Homogeneous Environment for Precision Heat Treatment


Process Capabilities

Basics of Fluidised
       Bed Heat Treating


Equipment Features

Typical Components Processed

Flexibility of Fluidised
       Bed Furnaces



Fluidised Bed Furnace

     Flexibility of Fluidised Bed Furnaces

      Any temperature (ambient to 1200°C) + Any heat treatment atmosphere =
      All heat treatment processes in single furnace

  • Rapid Atmosphere Exchange
  • Quick Startup and Shutdown
  •       Hardening & Tempering of Components & Tooling

  • low distortion due to uniform heat transfer
  • high quality surface finish
  • consistent hardness
  • short cycle time, high productivity

  • Hardening & Tempering of Components & Tooling

    Carburising and Carbonitriding

    Nitro Carburising and Nitriding
    Nitro Carburising and Nitriding
           Carburising and Carbonitriding
  • higher rate of carbon penetration
  • classic boost/diffuse carburising
  • consistent hardness & case depth
  • high temperature carburising upto 1080ºC
  • precise control of shallow case depths
  • absence of sub-surface oxidation
  • improved fatigue strength
  • good case uniformity in holes & gearteeth roots
  • precise control over hardness profile
  •        Nitrocarburising and Nitriding
  • shallow case Nitrocarburising as in proprietary salt bath processes.
  • also deep case Nitrocarburising without surface chemical attack likely in salt baths.
  • clean & non toxic process
  • deep case Nitriding, shorter cycle time
  • easy control of the Nitriding potential
  • processing from 450ºC to 700ºC
  • "NIL TO FULL" surface porosity control
  • mid cycle steam injection for adherent oxide layer for corrosion resistance
  • Oxynitriding capability
  • components are taken out after Nitriding or Nitrocarburising is over. No long cooling cycle as in retort furnaces
  • for Nitriding steels, other alloy steels, low carbon steels, tool steels, stainless steels, irons & sintered parts.
  •        Processes for Combined Wear & Corrosion Resistance
  • FERRINOX with added indentations resistance
  • AUSTINOX