EoW July 2010

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EuroWire – July 2010 24
technology news
Fuhr GmbH & Co KG chose wire Düsseldorf to introduce its latest
development for the production of high-precision rectangular
copper wire. Its largest-ever booth (over 1,000ft2) allowed Fuhr
the opportunity to display an entire rolling mill, capable of
processing copper wire in real-time from round to rectangular
with tolerances of ±0.005mm with excellent surface quality and
material properties.
The company reports that a large number of visitors came to
watch the operational capability of the machines and observe
the quality of the final product.
Featuring a combination of a horizontal spooler (payoff),
a two-high rolling machine (WSR-type), two edge-rolling
devices (WSE), two Universal Turks Head (WST) rolling machines,
as well as two combined dancers, three Vollmer measure-
ment systems and an oscillating spooler, this very compact
rolling mill is thought ideally geared towards the production
of high-precision rectangular copper wires (such as CTC) or
copper flat wire, such as PV ribbon (interconnect wire and bus
bar).
In general, applications for CTC cables are windings
for transformers, motors and generators. Furthermore,
high-precision rectangular copper wires with small
cross-sections are being used for high-efficiency hybrid motors
and wind generators. With the emergence of CTC cable and its
related applications, required tolerances for these rectangular
wires have been reduced to ±0.005–0.01mm, which cannot be
achieved with traditional cold rolling technology.
Fuhr’s concept and layout of its wire rolling machines offers a
rolling mill capable of processing copper round wires into a
wide range of rectangular and flat shapes, achieving width to
thickness ratios of up to 40:1.
Fuhr also caters for the entire industry of ferrous, non-ferrous
and special alloys.
Fuhr GmbH – Germany
Fax : +49 175 2200329
Email:
Website:
Copper wire line
launched at Düsseldorf
Fuhr copper wire line in action at Düsseldorf ▲ ▲