EoW January 2014

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News
Technology
January 2014 48
In many cable applications such as
extrusion polymer coating, pre-heating
of the material is required together with
degreasing.
PlasmaCleaner can be used as an
efficient and accurate pre-heater,
surpassing the energy efficiency of a
conventional induction preheater.
PlasmaCleaner is a plasma surface
treatment machine designed for surface
cleaning, degreasing or oxide removal
on ferrous and non-ferrous wires.
PlasmaCleaner can be used in
conjunction with drawing, extrusion,
taping or surface coating applications.
Plasma cleaning and degreasing
is conducted in low-pressure inert
atmosphere at high temperatures,
where wet lubricants evaporate and get
removed through the exhaust system,
leaving the wire surface dry and free of
lubricants.
PlasmaCleaner cannot be used for
drawing soap removal, but it can
remove surface oxides on copper,
aluminium, nickel, stainless steel, and
various alloys.
It can also be used for surface activation
to assist better lubricant pick up
in a drawing or rolling process or
improvement in coating adhesion in a
continuous coating process.
Plasma treatment is a dry process
that requires no rinsing or drying.
Plasma treated surfaces will exhibit a
high degree of passivation, which will
protect the surface by slowing down
subsequent surface corrosion.
A demonstration unit is available for
rental. Alternatively a trial can be
arranged at Plasmait’s facility in Austria.
Plasmait will exhibit at wire Düsseldorf
in April in the Austrian pavilion.
Plasmait GmbH – Austria
Website:
Mechanical descaling machine for rod wire
The descaling machine LMG 75 is a very economical alternative to chemical
cleaning and its revolutionary way of operation makes it stand out among the
mechanical scale removers. At the entrance, the wire rod is straightened by a set of
adjustable rollers.
The scale that is taken off during the process is collected and blown onto the wire
at the speed of sound (akin to sandblasting). This gives a perfect wire surface by
creating a multitude of micro craters, rather than just polishing the wire.
The wire rod is perfectly prepared for drawing and following treatments such
as galvanising and plating. It was shown that the ‘microcrater’ structure is very
beneficial for absorbing the drawing lubricants, and it favours the iron-zinc relation.
There are no moving parts (such as brushes or abrasive bands) at the core of the
machine, which is made of tungsten carbide. The machine requires ~50-60m³/t of
dry compressed air at a pressure of 4-5 bar (59-73 psi). Should the amount of scale
on the rod not be sufficient (typical consumption is 6-7 kg/t), an additional provision
of scale can be provided.
The LMG 75 machine can be used for low and high carbon steel qualities, and suits
both vertical and horizontal pay-offs.
Ofenbau Fritz – Germany Website:
PlasmaCleaner for continuous
degreasing, surface oxide
removal and pre-heating
▲ ▲ PlasmaCleaner from Plasmait
The biggest Warehouse in Europe
for Stainless Steel and Zinc
Coated wire annealed, from
diam. 0.10 to 5,00mm. (and more)
All wires in accordance with
Iso 9001, Rhos/Reach rules and
certified En 10204
Via A. Ressi, 23-20125 Milan, (Italy)
Phone +39 02 6703000
Fax +39 02 67070101
Filo ferro - acciaio - inox e leghe non ferrose