frequency welding method is usually often applied whenever
and PU products have to be welded.
products manufactured with HF welding method are
toys, packing, tents, pool, automobile parts, shoes,
main principle of high frequency welding is based on dielectric heating
of the material to be welded.
sheets of material are put between two metal plates (the electrodes),
whereupon a high frequency
is connected to the plates.
a result, the molecules in the material start vibrating, which results
in heating up
the melting (fusing) temperature.
bringing two layers of material into the HF field at the same time and
pressing them together,
layers melt together and form a strong welded joint.
great advantage of HF welding is the speed of welding
comparison with high frequency, in all other kinds of welding methods
filaments, hot air or infrared radiation) the heat has to be added from
It means the heat must first penetrate the material in order to make it
plastic enough to form a weld.
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