TECHNOLOGY NEWS:
Acid-free process increases direct high-carbon rod drawing
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, from 5.5mm 0.83%C rod down to 1.85mm Ø wire at speeds of 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 Ø - 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 Ø 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.
Company: |
Decalub |
Country: |
France |
Fax: |
+33 1 60 20 20 21 |
Email: |
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Website: |