AMP's computer-controlled rotary retort furnaces have a feeder system that performs two functions: (1) a two-stage electromagnetic vibratory feeder ensures gentle handling and (2) a scale weighs the parts to provide accurate feed rates.
Positive endothermic gas pressure and flame curtains protect parts in the furnace from oxidation and scale.
Radiant tubes both above and below the spiral rotary retort provide even, balanced heat to minimize hot spots and heat variation.
As the spiral rotary retort slowly revolves, gravity gently shuffles and conveys parts through the heat zones. The movement of parts through the furnace provides a more consistent and uniform heat treatment process than traditional batch- or belt-style furnaces.
The quench chute is where the majority of the quenchant agitation and martensitic transformation takes place. The quenchant curtain prevents fumes from contaminating the furnace.