Rod dry preparation and direct drawing

PUBLISHED: 05 May 11

Rod cleaning and wire drawing by DCCD process
Rod cleaning and wire drawing by DCCD process

The DCCD (Dry Cleaning, Coating and Drawing) process offers substantial cost savings in the most demanding drawing applications from mechanically descaled bare rod, drawn directly without wet pre-coating chemicals, including spring wire, PC strand wire, cold heading wire, plating wire, etc.

The process operates at 'zero' maintenance cost as there is no acid, no hot liquid tanks for rod pre-coating, no hot air blowers to dry wet rod, and it operates at virtually zero energy consumption.

An added benefit is the automatic control of lubrication parameters, including lubricant pressure, temperature and viscosity, enabling the use of standard high melting lubricants (+220°C/428°F) which are converted from solid into liquefied state and deposited on bare rod in a few microseconds, generating exceptional thermal stability at the highest drawing speed, eliminating phosphate, borax and their wet substitutes.

In operation, all these parameters 'communicate' together in a sensitive and automatic multi-way interaction to form a hard and strongly adherent full-film anti-wear lubricant coat, weight-adjustable, enabling frictionless drawing by physical separation of wire-die contact in all drafts, eliminating friction heat.

Typical applications of the DCCD process are: output of 2.2 tonne/ hour with 5.5mm 0.83/0.88%C rod, in a 'frictionless' drawing application with die life of 200 tonnes/die in the first draft and a die wear of 0.1 to 0.3 micron/tonne of wire drawn in the last draft.

Spring wire is drawn from mechanically descaled bare rod, without pre-coating chemicals, at 18m/s (3,600ft/min); 5.5mm 0.72%C rod drawn to 2.35mm at 16m/s (3,200ft/min); 10.5mm 0.85/0.88%C rod drawn to 4.22mm at 9m/s (1,800ft/min).

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

More news from this company:
Rod in-line dry cleaning, coating and drawing
Wire green cleaning for plating and a decorative glossy finish
Rod PDH coating - the new world of wire drawing
Wire and rod dry cleaning at extreme speed
Rod rust removal - dry, green and clean
Die wear - way to eliminate it
PDH dies can have infinite life - capture and removal of lubricant contaminants
Wire green cleaning for plating and decorative bright finish
Rod phosphate-free conversion coating - green, at unlimited speed and frictionless
Rod rust removal by captured scale - dry, green and clean
Wire green cleaning for plating and decorative bright finish
Wire dry cleaning enables direct galvanising
Rod scale and rust removal - acid-free, dry, green and clean
From drawn dull to wire clean reflective finish in plating quality
Rod preparation: Drawing art of steel wire - clean, green and dry