Muffle Ovens Are Capable Of Temperatures To 760C

Lucifer Furnaces has shipped two dual-chamber atmosphere muffle ovens to a customer for the purpose of heat-treating superconducting wire used in medical, pharmaceutical and industrial applications. The superconducting wire will be processed inside the muffle under a positive flow of protective nitrogen atmosphere. Each furnace has two 12 x 12 x 18in (300 x 300 x 450mm) chambers capable of temperatures to 760C with a uniformity of +/- 5C.

Door-mounted fans circulate the heated atmosphere inside the work chamber, providing uniform temperature throughout. A Honeywell cascade programmer coupled with an SCR power supply provides precise temperature control inside the muffle around the workload. The furnace is designed with lightweight insulating firebrick, a silicon carbide hearth plate, and heavy gauge coil wound heating elements located on both sides as well as under the muffle.

A double-pivot horizontal swing door with alloy cladding and a high-temperature gasket seals against the muffle to minimise heat loss while providing easy access to the work chamber and safety for the operator.


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