EoW January 2010

Cleaning & descaling

“ ACID-FREE PROCESS FOR STEEL ROD CLEANING & SURFACE PREPARATION” “New Way to Draw Steel Wire in the 21 st Century”

Inline rod cleaning The Lämneå inline rod cleaning system continuously performs in-line reverse bending of wire rod from 5mm to 15mm diameter. The system consists of a 4 or 6-sheave scale breaker, DU series, in combination with a BM 8, 4-pair brushing unit. In operation the rod is bent in four planes and pulled through the scale breaker. About 80 to 90 per cent of scale removed from the wire falls into a collection box beneath the scale breaker. The remaining 10 to 20 per cent is loose, but clings to the rod due to electrostatic charge; this undesirable scale residue is removed by the brushing machine. The wire passes through four brush sections, each section containing two brushes. Each pair of brushes is oriented 45º to each other in order to cover the entire wire surface.

WIRE 2010 Stand 10 E72

DCCD process features: • Eliminates acid, borax and precoatings • Zero energy consumption • Direct drawing from bare rod with no speed limitation, for H/C and L/C • New Lubricant Viscosity Control provides exceptionally adherent coating • Adjustable lubricant residual • Zero lubricant waste • Recommended for severe drawing applications (spring, rope, bead, CO 2 welding, PC strand, plating quality) • H/C wire drawn at 18 m/s (3600 ft/min) • Up to 8 times longer die life • Exiting wire temp. 45°C (113°F) • Greatly improved wire ductility

DECALUB 31, avenue de Condé 77500 CHELLES, FRANCE Fax: +33 1 60 20 20 21 E-mail: info@decalub.com Website: www.decalub.com

Mechanical descaling system DU4 ▲ ▲

An integrated system for automatically adjusting the brushes has been implemented into the BM 8. This monitors and ensures that the preset pressure is maintained throughout the brush lifetime.

Under normal circumstances the brushes last for at least 120 tons of operation.

Lämneå Bruk AB – Sweden Email : info@lamnea.se

Fax : +46 122 232 99 Website : www.lamnea.se

Descaling and cleaning combinations Electrorrec’s mechanical descaling machine DECL cleans rod using a combined bending and polishing system. The modular design of the descaling machine offers a wide range of configurations to suit customer requirements. When heavy-duty cleaning is required, the heavy descaling unit DECL-G can be combined with the fine descaling unit, DECL-F, and a polishing unit, UP. Arranging the heavy descaling unit with a polishing unit can solve many applications, with a significant reduction in investment. There are three descaling models (DECL-16, DECL-20 and DECL-28) and two polishing units (UP-1 and UP-2). The heavy descaling unit is a fabricated frame housing a double set of bending rollers in two planes 90 ° (model DECL-28 has only one set of bending rollers) with central, hydraulically driven, rollers. The bending rollers are equipped with tungsten carbide central rings. The fine descaling unit consists of two sets of wire brushes also allocated in two planes 90 ° . An independent pneumatic cylinder, which allows a permanent contact between the wire brushes and the wire rod surface independently of brush wear, tilt each set. The brushes’ motors are placed outside, to avoid problems with scale powder. The polishing units can be equipped with metallic wire brushes or abrasive wheels, depending on final product specifications. Electrorrec SA – Spain Fax : +34 836 820 383 Email : sales@electrorrec.com Website : www.electrorrec.com

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EuroWire – January 2010