WCA September 2013

wire Southeast Asia The interface module and all connection plugs are fully sealed for perfect protection against water, dirt and mechanical damage. Sikora AG – Germany Website : www.sikora.net system, exhaust pipe and efficient scrubber for neutralisation. Sirio Wire Srl – Italy Website : www.siriowire.com ➣➢➣

August Strecker GmbH & Co KG Stand J14

Sirio Wire Srl Stand E06

In the production of cables, the consistent and process-reliable joining of cables is an important topic. Generally, electrical resistance butt-welding is employed as a reliable means of joining two stranded conductors or cable ends. A distinction is made between two different methods, both of which are offered by Strecker. When welding with the use of glass, ceramic or graphite tubes, the two ends of the stranded conductor or cable are inserted into a tube so that the contact point is in the centre. The material is brought to the melting point by means of an electrical current and is welded by the upsetting pressure in the tubes. The material that has become molten is distributed evenly between the individual strands of the conductor. After completion of the welding process, the tube is shattered. The surface of the weld is flash-free, clean and smooth, and – provided the inner dimension of the tube was selected correctly – the weld is hardly thickened. Very little reworking (eg filing) is required in order for the slightly larger cross section resulting from the process to be drawn into the entry nozzle of the extruder without problem. For larger cross sections, these machines are equipped with pneumatic clamping and upsetting. At present, stranded cables up to a maximum of 1,200mm² can be joined using this method. When welding without tubes, using electric double upset butt-welding machines with automatic de-burring, the cable ends at the contact point are brought to the required welding temperature with an initially light pressure. As soon as the material becomes molten, high pressure is applied and the heated material is pressed almost completely out of the welding zone. With the use of this double pressure, high-strength welds can be achieved. Integrated in the process immediately after the actual welding procedure, the welding flash is cut away (ie the

Sirio Wire Srl is an Italian company specialising in the production of wire surface treatment lines. Its production range includes HCl fumeless pickling, H 2 SO 4 electrolytic pickling, ultrasonic and electrolytic cleaning, electro- plating lines, bronzing lines for beadwire, phosphating, coating and drying. Sirio will display pictures and films of its recent lines and, in particular, the latest generation of electro-galvanising lines for steel wires.

Electroplating is the process of using electrical current to coat an electrically conductive object, in this case steel wire, with a relatively thin layer of metal. The primary application of electroplating deposits a layer of a metal having some desired property, in particular corrosion protection or lubricity, on the steel wire surface. The latest generation of Sirio electro galvanising lines are made with insoluble anodes and separate dissolution tank. This is a huge advantage as no operation has to be made where the wires are moving. A PLC-based control system with touch screen panel for control of the elements of the line allows an automatic calculation and supply of requested current intensity for the required coating thickness in function of the speed and of the wire diameter. The containment of fumes is complete, thanks to covers with a counterweight ❍ Electrolytic pickling from Sirio Wire

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