WCN Autumn 2008

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7 WIRE & CABLE NEWS • Issue N° 39 – Autumn 2008 •
New methods of
aluminium wire drawing
Encouraged by high copper prices many
companies are choosing aluminium
for the production of enamelled wires,
while aluminium and aluminium alloy
wires, previously applied in high and
medium voltage lines or as coaxial cable,
are increasingly used by the automotive
industry looking for cost and weight
reductions.
Traditionally, oils are used for drawing of
aluminium wires and, especially in the
field of rod wire drawing, those partially
highly viscous media are essential. Their
application is, however, linked with
known disadvantages such as impossible
filtration and an oil contaminated wire
surface.
Benefitting from lower viscosity, the
products from the BERUDRAW family,
from Bechem, improved filterability,
residue-free wires and more stable
drawing processes.
The use of BERUDRAW AL 8, in
combination with a tailor-made filtration,
meets the requirements of energy supply
companies with regard to surface quality
and cleanliness of the wires.
New ways are now open for the end
users: the application of emulsions for
multiwire drawing of aluminium creates
a clean, pleasant working environment,
not achievable when operating with
conventional drawing oils.
Clean drawing machines and optimal
filtration provide an almost residue-
free finished product with high-quality
surfaces, which guarantees best finishing
of the aluminium wires. In addition,
improved filtration results in an extended
emulsion life and corresponding cost
savings.
Carefully selected additives from the
UNOPOLAL-seriespromotelongemulsion
life and improved lubricating properties,
as well as the frame parameters for a
stable and efficient drawing process.
UNOPOL AL 560 has been successfully
applied to multiwire drawing of
aluminium up to a final diametre of 0.3
mm. UNOPOLAL 560 is especially suitable
for inline drawing with subsequent
annealing and enamelling processes.
Carl Bechem GmbH – Germany
Fax: +49 2331 935-1189
Email:
Website:
FORTHCOMING IWMA SOCIAL EVENTS
IWMA Dinner Dance 2008
Friday 28 November 2008, Royal Garden Hotel, London, UK
IWMA AGM & Industry Lunch 2009
Wednesday 4 February 2009, Mere Golf & Country Club, UK
Please contact the IWMA office for further details,
Tel: +44 1926 834680 Fax: +44 1926 314755
or visit the website
New Camel waterblocking
yarns fromA&E Inc provide
cable producers with
valuable flexibility to tailor
yarncountandabsorbency
characteristics for specific
applications.
Designed for filler and
binder applications, Camel
waterblocking yarn is
based on Super Absorbent
Fibre (SAF) technology,
for the ultimate in rapid
absorbency.
Camel waterblocking
yarn can reach 90% of its
maximum absorbency
in slightly more than five
seconds, with an average
minimum absorbency of
30-grams/gram.
This specialised yarn
provides for clean and
efficient payoffs from
several package formats.
With SAF technology,
absorbency is built into the yarn.
This feature translates intomoreabsorbent
material being conveyed into the cable
without the powder build-up inherent
with most SAP yarn products.
Dependent on yarn size, package lengths
of over 122,000 meters are available.
Fine-count yarn options (down to
288-decitex/34.7 km/kg) offer cable
designers a new dimension in loose tube
constructions and cable weight savings.
A&E Inc is a leading supplier of high
tenacity ripcords and binder yarns, as well
as fillers, strength members and marker
yarns to the global cable industry.
An innovator in textiles for more than 115
years, A&E Inc has global operations across
Asia, Europe, and the Americas.
American & Efird (GB) Ltd – UK
Fax: +44 161 766 9965
Email:
Website:
Camel waterblocking yarn from A&E
Camel waterblocking yarn ▲ ▲