We use the heaviest gage wire in the
industry to provide robust, long-lived
heaters that can be operated up to 2,000
degrees Fahrenheit.
The wire is recessed in separating
groves that are precision cast in a
ceramic core that is engineered to
compliment the mating protection tube.
The coils can never touch each other and
short out. Extra heavy leads are brought
out and insulated away from the heater
core to provide trouble free
connections.
Immersion heaters virtually eliminate
melt loss in melters and since the
refractory is never super-heated, the
refractory life over glow bar and gas
fired reverb holding and melting
furnaces is at leased doubled. Corundum
is eliminated in properly designed
immersion heated furnaces.
Immersion heaters do not super-heat
the surface of the molten metal as do
glow bar and gas fired reverb furnaces.
Super-heating the surface of molten
aluminum greatly increases the
absorption of hydrogen into the molten
aluminum and the creation of aluminum
oxides at the surface, many of which
become suspended in the melt or sink,
only to be riled up from time to time.
When used in holding furnaces,
immersion heaters more efficiently
transfer heat into dip wells and
degassers since the heat does not have
to pass through an insulating layer of
oxides on the surface of the melt and
the heat source is beneath any
separating refractory arch and it is in
close proximity to the dip well or
degassing head.
Power requirements are typically
twenty five to thirty percent less than
glow bar furnaces and the reduction in
melt loss and improved metal quality
over glow bar and gas fired reverb
furnaces is significant. Coupling these
advantages with extended refractory life
provides even greater savings for you,
the user.
