EoW March 2009

english technology news

Delisi Srl offers automatic wire straightening and cutting machines for smooth and ribbed wires from 1mm to 20mm diameter. Delisi machines are versatile and can be customised to suit the customer’s requirements. Available features include the hydraulic flying shear cut. Feeding speed is regulated by hand-wheel or electronically. Feeding rolls are never changed; with the hand-wheel it is easy to select the grooves on the feeding rolls for the diameter to work. The spinner has a pre-regulated set of straightening jaws and it takes only one minute to change the wire diameter. The torsion is very reduced and the wire, after the cut, is cold; the tolerance on the bar length is less than ± 1m. An electronic programmer and one or three lines of pneumatically tiltable arms can be supplied with the rod collection bed; different lengths and different quantities can be programmed and collected separately in one of the lines of tiltable arms, without stopping the machine and giving the operator the opportunity to empty the lower line of tilting arms. Delisi Srl – Italy Fax : +39 0882 333236 Straightening and cutting

Email : delisi@delisisrl.com Website : www.delisisrl.com

High speed dry cleaning for rod and wire Advertorial on behalf of Decalub

Decalub has developed a rod and wire dry cleaning system, Smooth-Brush (SB), which operates in-line with a wiredrawing machine. The SB system provides an extra-clean product by transversal high-speed ultra-fine brushing all around the wire circumference with automatically controlled brush pressure, and ensures unchanged rod or wire physical properties with no induced residual stress. Rod and wire SB cleaning system eliminates the most costly parameters in wire drawing process, including elimination of acid and wet pre-coating chemicals, providing downstream benefits and substantial process savings. Suitable for use where the surface finish is of great importance, the system offers consistency and can be of benefit in demanding applications such as plating wire, CO 2 welding wire and H/C wires where the ductility is a focus, particularly in the production of spring wire, bead wire and PC strand wire. In rod applications, the system provides transversal micro-roughing, ideal for lubricant pick–up during drawing, enabling even plastic deformation and a uniform metal flow within

Rod/wire dry cleaning by SB brushing system ▲ ▲

the die at all practical speeds. Brush bristle penetration is adjustable to automatically maintain surface micro-roughness from 10 to 20 microns. This facility eliminates the need for wet pre-coating chemicals in the drawing process, including 0.90%C rod. In wire cleaning applications, the system's smooth micro-brushing capability is used to clean drawn wire of residual lubricant, enabling in-line polishing of wire for cold head applications, metallic and plastic coating or painting. Decalub – France Fax : +33 1 6020 2021 Email : info@decalub.com Website : www.decalub.com

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EuroWire – March 2009