WCA January 2009

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Wire drawing consumables in fibreglass and thermoplastic Isolmax, of Milan, specialises in manufacturing in thermoplastic materials and fibreglass but can also work in other materials including Teflon, nylon, lexan, PVC, glass epoxy or polyester glass, depending on the customer’s application.

Butt welders Microwelder is a range of electric resistance wire butt-welding machines from Rymer Engineering. The EH series are suitable for various materials and, depending on model, will handle ferrous materials of 0.9 to 9.5mm diameter or non- ferrous of 0.9 to 6mm diameter. The EH series is supplied mounted on a wheeled trolley. The SG series, depending on model, is suitable for ferrous materials between 0.3mm and 2mm diameter or non-ferrous wires of 0.5 to 3mm diameter. A wheeled trolley is avail- able for the SG series if required. The energy efficient Microwelder units are adaptable for round, flat or shaped materials or sections. Portable, light and compact they are easy to handle and simple to operate. Suitable grinders are available and Rymer will also supply spares and service. Rymer Engineering – UK Email : admin@rymerengineering.co.uk Website : www.rymereng.co.uk

Especially for copper wire drawing machines, Isolmax produces flanges for coils and plates for annealing furnaces made from a thermosetting material. This fibreglass material is believed to be more durable and offer higher performance than thermo- plastic, which is currently used by most manufacturers of copper wire drawing machines.

The cost of material, its excellent heat resistance, mechanical properties and dielectric strength make this product successful in many other applications. The company also produces other components in fibreglass and thermoplastic material for other applications such as driving chains, tubes, pulleys, plates, bushes and pipes to individual specifications. A technical department is always available to offer advice and to find innovative solutions to customer needs. Isolmax Srl – Italy Fax : +39 02 92162288 Email : info@isolmaxsrl.it Website : www.isolmaxsrl.it Drawing of Alumoclad steel wire Components in thermoplastic from Isolmax ❍ ❍

Aluminium and aluminium alloy conductors are used for the overhead transport of electrical energy. To support the weight of airborne electrical cables hung between two trestles, a steel wire stiffener is necessary in the centre of the cable. The steel wires used for this purpose are aluminium- or zinc-coated. In particular, aluminium-coated steel wire, known as Alumoclad, is more resistant to corrosion and is also preferable to zinc due to its higher conductivity.

GCR Eurodraw makes lines to draw down Alumoclad from the wire rod to the final required diameters, with conductivity and tensile stress that comply with the regulations in force in the different countries of the world. The lines are able to draw the combination aluminium/steel at high speeds, while at the same time maintaining the original ratio between the thickness of the aluminium coating and the steel wire diameter. Die cooling has been optimised for excellent dispersal of the heat produced during the drawing operation, and block cooling is such that the wire temperature is maintained within the required limits after every single drawing block. The die boxes have been expressly designed for this particular production. Alumoclad drawing lines include pay-offs and take-ups that are specific for the spools used by the user in the subsequent production processes. GCR Eurodraw SpA – Italy Fax : +39 02 9354 0452 Email : gcr@gcrgroup.com Website : www.gcrgroup.com

MTS machine to draw Alumoclad wire ❍ ❍

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Wire & Cable ASIA – January/February 2009