Technology
HF
vs Hot air & Hot wedge
High
frequency welding
Hot air
Hot
wedge
TYPE
OF
FABRICS
WELDING
TECHNIQUE
WELDING
SPEED
AND
TIME
QUALITY
OF
THE
WELD
APPLI
-CATION
PVC,
PU, ETFE, PTFE
PE,
thin PVC foils
The
heat is generated inside the welded
fabrics
by providing high frequency
voltage
by means of metal electrodes.
The
heat is provided by the tool
to
the welded surfaces from the outside.
The
weld is formed on the surface.
of
the joined fabrics.
HF
welding technique is the most efficien
in
speed and time within one welding cycle.
HF
makes the layers of fabrics heat up
evenly
at the same time, no matter how thick
they
are. The cooling time is also quicker
The
welding speed and time depends on the
thickness
of fabrics to be welded.
The
thicker the layer is, the longer it takes
to
heat up the surface to the required
fabrics
is very high in this case. The cooling time
temperature.
The risk of overheating the
depends
on the fabrics characteristics.
Weld
strength equals the strength
of
welded fabrics. The weld is also
uniform
and very flexible.
No
smoke or unpleasant smells appear.
The
weld is formed on the surface of the
fabrics
what makes it less durable.
It
is also less flexible due to hard seam
produced
during welding. The welded
fabrics
can produce smoke, drippings
and
unpleasant smell.
HF
welding can be applied in various
industries
such as advertising,
light
architecture,
automotive;
the size of both production
and
final products is insignificant.
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