EoW November 2008

english technology news

Cleanliness in high-voltage cable production

Absolute cleanliness is essential in high-voltage cable production. With the CSS 2 for real time control and detection of contamination in the polymer melt, Sikora believes it can offer the technology to guarantee process stability and product quality at the production line. The CSS 2 camera system detects contamination particles in XLPE-materials. With super clean PE-material, higher voltage insulation strength with identi- fiable wall thicknesses and no defect charges can be achieved. Contamination can be caused by material handling. Shavings can be created by wear of the extruder screw or the cleaning of the extruder screw can leave dust particles that bring tiny pores or inclusions into the material. Contamination in the form of combustion particles such as amber and scorches, which occur during the long-term operation of the line, are also a risk.

channel allows immediate intervention in the production process. The flow channel between the extruder and the crosshead includes sight glasses and an optical CCD-camera system, which transilluminates the insulation material. The CCD-colour camera detects particles of 20µm in the PE-melt and the identified constituents are classified with regard to their size. Particles that exceed the specified tolerance value are analysed and their colour, situation, vertical and horizontal dimensions are displayed. Besides the graphical display of the detected particles, monitor pictures show a live image of the complete material flow. In contrast to granulate control the system actually detects contamination in the material before the cable is produced.

CSS 2 detects contamination in XLPE-materials ▲ ▲

The CSS 2 system ensures real-time, online quality assurance, removing the need for time-delaying laboratory analysis. 100% inspection of the XLPE-melt in the flow

Sikora AG – Germany Fax : +49 421 489 0090 Email : sales@sikora.net Website : www.sikora.net

High frequency connector range

Frictionless drawing of steel wire

Johnson®, a subsidiary of Emerson Network Power Connectivity Solutions, has introduced a line of SMP Blind-Mate connectors that can handle frequencies up to 40GHz. This precision connection interface is a micro-miniature, slide-on/ snap-on interconnect system designed for high-density packaging. The system is extremely flexible since it can correct axial and radial misalignment and is compatible with all SMP and GPO® connectors. Johnson offers several configurations of its SMP Blind-Mate connector to meet a variety of needs in high frequency applications. Johnson’s new line of SMP Blind-Mate connectors includes 26 different connectors, adapters and mounts and nine new assembly tools. The company also provides detailed assembly instructions and makes use of industry standard tooling whenever possible for customer convenience and compatibility. Emerson Connectivity Solutions – UK Fax : +44 1245 358938 Email : sales@vitelec.co.uk Website : www.emersonnetworkpower.com/ connectivity

Advertorial on behalf of Decalub

Rod dry cleaning and preparation by the DCCD system enables in-line direct drawing of mechanically de- scaled high and low carbon rod, up to 0.88%C, without wet pre-coating chemicals and with-

Rod dry preparation by DCCD system ▲ ▲

A recent application of the DCCD process is for 5.5mm (0.218") 0.78–0.85%C rod, dry cleaned and surface prepared in the first draft, in-line, with zero consumables cost and with virtually zero energy consumption, with an output of 2.2 tons/hour. The system offers immediate substantial cost savings in production of quality wires, including spring, rope, bead, PC strand and galvanised H/C or L/C. Decalub – France Fax : +33 1 6020 2021 Email : info@decalub.com Website : www.decalub.com

out rod speed limitation. The process incorporates the new LVC/PDH rod dry coating technology that enables an automatically controlled fusion of lubrication compounds. Such a liquefied substance eliminates completely traditional wet pre-coating chemicals and provides an adherent and consistent residual coat, automatically adjustable in weight at all speeds. The DCCD processed 5.5mm (0.218") 0.83%C rod is dry coated and drawn directly, in-line, without wet pre-coating, to 1.85mm (0.073") at 13.5m/s (2,700ft/ min) with virtually zero friction - exiting wire temperature not exceeding 45°C.

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EuroWire – November 2008