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Lenton has developed a small range of
elevator hearth furnaces for operation in air or inert gas
atmospheres. The range is available with maximum
operating temperatures of 1700°C and 1800°C with
capacities of 3.4 and 7.9 litres.
Optimum temperature uniformity is
obtained by the inclusion of molybdenum disilicide heating
elements which are positioned around the walls of the
chamber ensuring uniform heating of the sample. A
combination of dense refractory brick hot face insulation
and a secondary low thermal mass layer of insulation
provides a robust chamber with an efficient utilisation of
power.
The electrically operated elevator
hearth ensures operator safety and prevents direct
radiation of heat from the chamber walls. It also
ensures smooth loading/unloading of the workpiece/crucible
and allows both heavy and delicate loads to be handled
easily. Overtemperature protection is fitted as
standard.
The furnace can be adapted to
accommodate an atmosphere other than air, by the use of an
inverted alumina crucible in a groove in the hearth.
Please contact
us for further details.
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