| Decalub, France, has recently introduced its new high-performance steel rod cleaning and preparation system, enabling in-line direct drawing of mechanically descaled high-carbon rod (from 0.78 to 0.88 % carbon), without wet pre-coating chemicals and without rod speed limitation. This new system permits a direct drawing from the green rod, at unlimited rod entry speed and does not need any acid, no borax or traditional wet pre-coatings. According to user over the world, this system provides one of the greatest performances ever obtained in mechanically descaled rod surface preparation. The Decalub DCCD process incorporates the new LVC/PDH rod coating technology which enables an automatically controlled fusion of lubrication compounds, or their blends in all proportions, independently of their melting properties and grain size. Such a �liquefied� substance achieves an exceptionally consistent and hard residual coat, adjustable in weight, at all speeds.
The DCCD process permits to directly draw, in-line and without wet pre-coating, rods ranging from 5.5 to 1.85mm � - 0.83%C at speeds up to 13.5m/s with virtually �zero friction�, and with exiting wire temperature not exceeding 45�C. Latest performances of the DCCD process include:
- 5.5mm � - 0.78 to 0.85% C green rod is dry cleaned and surface prepared in the first draft, in-line, with a molten/�liquefied� lubricant with �zero consumables cost� and with virtually �zero energy consumption�. It permits a production rate of 2.2 tonnes per hour with a rod entry speed of 3.3m/s;
- 0.73% C green rod is mechanically descaled by the DCCD process and directly drawn, in-line, without pre-coating chemicals, with Na-based lubricant in all drafts, enabling an easy wire cleaning prior to galvanising, plating, etc.;
- Spring quality rod is drawn directly from 5.5 to 1.3mm � at speeds of up 18m/s.
The system excels in the most demanding applications and offers immediate substantial cost savings in production of quality wires, including spring, rope, bead, PC-strand, galvanised H/C or L/C, CO2 welding, plating quality, collated nail, etc. This sytem will be highlighted on Decalub�s stand (10E70) during wire D�sseldorf 2004.
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