Lucifer Furnaces supplied a Midwest-based ISO 9001-certified analytical testing facility with a model 7000 AM box furnace for stress relieving. The 7-inch x 7-inch x 18-inch chamber is powered with 8 kW and heats to 2050°F. The heavy-gauge reinforced steel shell is insulated with 6.5 inches of multi-layered insulating firebrick and mineral-wool block for energy efficiency. Easy-to-replace radiant panels on both sidewalls and floor provide heat to the workload, which is insulated from the elements by a RA330 alloy muffle supporting an argon atmosphere.
The muffle design reduces scale, achieves lower dew points and reduces atmosphere consumption. A silicon-carbide hearth plate supports the muffled work chamber while allowing thermal transfer from the floor heating elements. An insulated double-pivot horizontal swing door, Honeywell digital programmable temperature controller, flow meter and over-temperature safety system are all built in to this furnace.
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