Furnaces of this type have a movable bottom (car). The car goes out of the furnace and may be loaded or unloaded with treated parts. The heating method may be either electric resistance or fuel/gas. Car bottom furnaces are suitable for various heat treatment operations of large and heavy parts.
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Furnaces of this type have a mesh belt conveyor moving through a long tube like furnace. The heating method may be either electric (resistance or induction) or fuel/gas. Belt furnaces are suitable for heat treatment of relatively small parts.
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Salt baths have many advantages over other heat treatment processes, viz Rapid rate of heat transfer in the salt bath gives higher output Uniform and accurate control of temperature can be available through out the bath and the components.
A)SALTS FOR CARBURISING
ALFA CARB –I
Salt for Carburising with Working Range 760°-950°C ( ICI Equivalent –`Rapicarb-H’ )
ALFA CARB –II
Salt for Carburising with Working Range 800°-950°C (ICI Equivalent - `Rapicarb-S’ )
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