A multi-unit modular pot furnace system has been set for an aerospace manufacturer in the U.S. to help the end user increase heat treat capacity.
Each of the four Lucifer Furnaces Model 2057 pot furnaces is connected to a single freestanding NEMA 1 control panel. Each furnace is heated electrically with 18 KW of power to heavy duty coiled elements in removable holders on all 4 side walls. Roof and side covers bolted to the frame of each furnace can be removed for easy service access.
The units are insulated with 5" of multi-layer insulation consisting of dry-fit hot face lightweight firebrick backed by cold face mineral wool. A vestibule at the top of each furnace reduces heat loss between the pot wall and firing chamber. Controls onboard include Honeywell DC3500 digital multiprogrammable cascade controllers which automatically interpret multiple thermocouple readings and adjust the inside/outside pot temperature to achieve the desired set point. Additional energy efficiency and power uniformity is maintained with SCR power units.
