EoW July 2010

technology news

Copper wire line launched at Düsseldorf Fuhr copper wire line in action at Düsseldorf ▲ ▲

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 : mail@karl-fuhr.com Website : www.fuhr-wire.com

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 1,000ft 2 ) 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).

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EuroWire – July 2010