EuroWire September 2014

News Technology

Advertorial on behalf of Decalub Wire green cleaning provides extra-clean wire in-line

The BH-S is a green dry cleaning process of great potential used in-line in the most demanding applications, allowing the highest cleaning speed with all steel wires (including 0.90%C), mechanically descaled or acid cleaned, bare or pre-coated, drawn with calcium and sodium lubricants. Applications include wire cleaning from lubricant residue, or other contaminants, prior to galvanising, metallic coatings, Al or Cu cladding, heat treatment, etc, and wire rod cleaning prior to drawing. Development of the BH-S wire dry cleaning system provides the ultimate combination of simplicity and effectiveness, replacing the most costly operations in wire cleaning processes, including replacement of acid, ultrasonic and other wet chemicals, generating substantial cost savings, environmental benefits and improvement in productivity of clean H/C and L/C wires. The BH-S system is particularly recommended for cleaning applications in which a conventional process is inappropriate, especially with wires drawn upon severe conditions resulting in increased heat and burned lubricant tightly bound to the wire surface and embedded in micro-cavities. Basically, the BH-S is a smooth and sensitive multi-layer micro-shaving/abrading that finely impact wire surface separating lubricant residue from base material, evacuating

▲ ▲ Wire cleaning by BH-S system

away dispersed contaminants by moving wire, exiting the unit extra clean of white-metal appearance at extreme speed, operating at virtually zero energy consumption. Decalub – France Email : info@decalub.com Website : www.decalub.com

Stranding machine for the manufacture of AC and DC offshore energy cables

Japanese already successfully produced its first test and acceptance cables and is just about to go into production. SKET presented its latest development at the wire 2014 international trade fair in April, in Düsseldorf, Germany. The company exhibited a model of a vertical stranding machine, attracting great interest. Many visitors from both domestic and foreign markets used their visit to the stand to inform themselves concerning the advantages of and the applications for vertical stranding machines. These machines are customised to the particular requirements of the individual customer. The next machines for customers in Asia are already in the planning stages. In production at SKET during the fourth quarter of this year is a two-cage type stranding machine which is additionally designed to apply over 200 armouring wires together with several optic elements to AC or DC offshore power cables. customer has

vertical were supplied to customers in Europe and Asia. Since then, the machine installed in the European cable works has successfully completed trials and has produced its first cable contracts for the offshore power cable market. The machine supplied to a leading stranding machines

The requirement for very long offshore power cables having a diameter of up to 350mm led to the development and market availability of systems designed to meet the demands of modern production. During this development process, in addition to the conventional stranding

of three-phase AC cables on cage-type stranding machines with back-twist, the principle of the vertical stranding machine, which had been used for many years in various areas of cable and rope production, pushed its way back to the forefront of consideration. This principle makes possible the particularly cost effective and efficient manufacture of AC power cable. In a second subsequent process, the stranded energy cable cores are armoured with one or two layers of steel wire armour and provided with additional optic elements, tapes, yarn and bitumen. SKET Verseilmaschinenbau and its partners have been among those companies meeting the requirements of the market in this way for over ten years.

SKET Verseilmaschinenbau GmbH – Germany Website : www.sketvmb.de

▲ ▲ SKET MVD type vertical laying-up machine for making submarine cables with a maximum diameter of 300mm

At the end of 2013 two further

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September 2014