Wire lubrication control eliminates pre-coating chemicals

PUBLISHED: 28 Aug 08

Wire lubrication by LVC / PDH system
Wire lubrication by LVC / PDH system

New Lubricant Viscosity Control (LVC) system, used in conjunction with the PDH ultra high-pressure lubrication technology, can be used in the most demanding drawing applications, allowing mechanically descaled high- or low-carbon rod to be drawn directly at high speed, without pre-coating chemicals.

LVC/PDH rod dry coating/lubrication system uses three-way interaction between the pressure, temperature and lubricant viscosity to produce a fusion of standard lubrication compounds, liquefied to a viscosity to suit the application. This eliminates traditional pre-coating chemicals, including phosphate and borax pre-coating, and provides a consistent residual coat in the first draft.

The system permits frictionless drawing in remaining drafts with the full lubricant film at wire-die interface, giving physical separation of metal-to-metal contact, in the most demanding multi-draft applications from rod to wire in a one-step operation. The new rod dry coating/lubrication system allows a wide range of residual coats, from strongly adherent � for high-tensile wire � to a light, water soluble coat for plating wire.

Typical applications of the LVC/PDH dry coating system include direct drawing from mechanically descaled H/C rod, without pre-coating chemicals, from 5.5mm down to 1.3mm at 18m/s, and to 3.25mm at 8.3m/s, with die life enabling production of 200-220 tonnes/die in the first draft.

The finishing die produces 40 to 60 tonnes of wire drawn without pre-coating chemicals and with improved ductility, cast and torsion.

LVC/PDH lubrication system features zero energy consumption, self-generating processing heat and pressure.

Decalub, France
Tel: + 33 1 64 26 20 66
Email: info@decalub.com
Web: www.decalub.com

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