Relco manufacture a range of HF Dielectric Generators
in both 27.12MHz and 13.11MHz in power ranges from 500W through to 30kW.
All equipment includes the Relco Auto Tuning system, full overload protection
and ultra fast arc limiting. Relco Dielectric Generators can be used
for a variety of applications from wood glue curing, material/ceramics
drying, softening plastics, defrosting food, sterilising, plasma etching
and many other purposes.
How HF Heating Works
An HF dielectric generator produces an alternating electrical field
between two electrodes. When the product is placed between the electrodes,
this field causes the molecules within the material to oscillate. This
oscillation results in friction between the particles which generates
heat. HF provides a means for heat to be produced within the substance
which one wishes to heat as opposed to the considerably less efficient
methods of conduction or convection.
Why Use HF Heating ?
Not only does HF give vastly increased efficiency it can also be targeted
very accurately so as to allow one part of a product to be heated very
quickly without damaging the integrity of the surrounding areas, a quality
which makes it ideal for plastic welding. HF also provides one of the
most efficient means of drying available, by careful tuning of the electromagnetic
field, H2O molecules can be made to oscillate, heating up until they
evaporate. Due to the nature of HF, the most power is automatically
targeted at areas with the greatest concentration of water producing
a uniform drying effect.