WCA January 2007

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Dry & Wet Lubricants
44 Wire & Cable ASIA – January/February 2007
During the drawing process, the
temperature increases, and the
viscosity of the oil drops. Oil
temperature is maintained by heat
exchangers at approximately 40-60°C.
Due to the high viscosity of the oils,
filtration is not possible, so all the
swarf created by the drawing process
stays in suspension.
Even when the oil is
kept without movement
for some days, only
a small percentage
of these fine particles
will precipitate and can
be removed.
Therefore the oil is
continuously polluted,
and as a result, the
drawn wire itself may
become dirty, necessi-
tating a cleaning step
after drawing.
Another drawback of
keeping the dust parti-
cles in suspension is
that the viscosity of the
oil increases, meaning
that the drawing tem-
perature has to be
increased further. This
generates a faster
oxidation of the oil,
reducing the oil’s life
time and increasing
the frequency of oil
changes.
Bechem, Germany, has recognised
this problem and has developed a
new line of Kubitrac AL drawing
oils, based on highly refined base
oils combined with a higher level of
synthetic lubricity additives and special
deoxidants.
The improved lubricity of these oils
can lower viscosity to around 40-
60mm²/s at 40°C. The synthetic
additives show only a very
limited tendency to oxidise, and
in combination with the special
deoxidants this feature ensures the
viscosity of the oil does not increase.
A special paper filtration system has
been developed by Reber Systematic
(Resy), using a three dimensional
filter paper from TWE Dierdorf GmbH,
which can further increase the
lifespan of the Kubitrac AL drawing
oils.
The filter paper is particularly designed
for medium and high viscose neat
oils, and features special fibres which
offer a high flow rate while ensuring
filtration performance.
Other advantages of the filtration
system are that consumption of
filter paper is low, the filter drag
out is dry, and the system does not
need expensive pumping systems
– standard pumps can be used.
Carl Bechem GmbH – Germany
Email:
Website:
Reber Systematic GmbH + Co KG
– Germany
Fax: +49 7121 9483 38
Email:
Website:
TWE Dierdorf GmbH
– Germany
Website:
Dry and wet drawing lubricant producer
Pan Chemicals, Italy, is a producer of special drawing
lubricants and coatings for ferrous, non-ferrous and
stainless steel wire, and equipment for the wire industry.
The company’s dry drawing lubricants can be used for
low carbon steel wire, plating quality wire, welding wire,
CHQ, high carbon steel wire, drawing after galvanising
and high alloyed steel.
The company also produces wet drawing lubricants
(soluble lubricants, neat oils and greases), products for
surface treatment (phosphate coatings, non-reactive
precoatings, and precoatings for stainless steel), and
auxiliary products for degreasing, surface treatment,
pickling of stainless steel, and special applications.
The range of equipment manufactured by the
company includes sanding belt descalers, mechanical
descalers, Deblaster TR 1 (single wheel shot blaster),
rotating pressure die boxes, Borax coating and drying
equipment, and high-tech die reconditioning equipment.
Pan Chemicals SpA – Italy
Fax: +39 035 977 288 • Email: • Website:
An example of steel wire drawing lubricants of the KUBITRAC series ▲
Pan Chemicals produces a range of drawing lubricants and coatings for wire ▲
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