EuroWire November 2015

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November 2015 32
News
Technology
Since 1995 GEO-Reinigungstechnik
GmbH (GEO) has specialised in the
development, planning and production
of cleaning equipment for wires, cables,
strand, strips, tubes and similar longitudinal
configurations.
High performance systems for surface
treatment, based on mechanical
or wet-chemical processes, are
custom-designed and manufactured.
Ultrasonic modules and high-pressure
nozzles, integrated in space-saving
in-line systems with fluid management,
guarantee good results in non-contact
and residue-free aqueous cleaning, both in
single lines as well as multi-wire cleaning.
Steam nozzles and mechanical systems
with brushes or textiles complement the
options to optimise the surface quality. This
includes, due to its highly versatile usability,
the ‘Primary Wire Wipe’ (PWW) wiping
system, which uses non-woven tapes both
to reduce drawing agents and loosely
adherent metal particles, as well as for the
application of release agents, adhesives,
lubricants and welding wire finish.
The latest system in GEO’s portfolio is a
measuring device for the testing of welding
wires.
Starting from the fact that the quality of a
weld is critically dependent on the quality
of the welding wire and the arc and apart
from the metallurgical characteristics, the
surface quality and their sliding and contact
properties play a crucial role, the Wire
Welding Test Equipment (WWTE) provides
measurement curves that are relevant for
assessing the quality such as conveying
resistance F (N), welding current I (A), the
welding voltage U (V) and the wire speed
both directly after the wire feed rollers as
well as directly in front of the welding gun.
It is precisely the ratio of those latter two
parameters, which in addition to conveying
resistance can provide information on the
weldability of the wire.
Thanks to the rapid measurement of the
wire speed immediately after the conveyor
rollers and directly at the welding gun,
micro-welds in the contact tip and the
slip in the conveyor rollers can be reliably
detected, and informed conclusions on
improving the quality of wire can be
drawn.
The galvanically separated measuring
signals are displayed and stored using
special software as waveforms on a
time axis. They can be issued or printed
out separately, one above the other or
superimposed. By creating reference
measurements and the allocation of a
tolerance range, fast measurements can be
made for quality assurance in welding wire
production.
The measuring device can be used with all
standard MIG/MAG welding equipment to
test all types of welding wires fromØ0.8mm
to Ø2mm.
GEO-Reinigungstechnik GmbH –
Germany
Website:
Systems for cleaning and
testing of welding wires
▲ ▲ The Wire Welding Test Equipment (WWTE) from GEO-Reinigungstechnik