Summary for precleaning steel wire Discussion
Precleaning steel wire before plastic coating is the core issue here: Esmail Taiyeb Godhrawala of Mumbai says his 1.00 mm bright wet-drawn mild steel wire carries a black residue from soapy solution that hot water at 80-90 °C cannot remove at 400 m/min on a PET extrusion coating line. He is worried that using trichloroethylene could ignite in the induction preheater coil ahead of the die, and asks whether a high-pressure jet or rotary washing system would work. The thread excerpt provided contains only the question, so no answerer’s recommendation is shown. The practical need is clear: a fast, nonflammable precleaning method that can remove drawing lubricant residue reliably at line speed before plastic coating.
Q. I have recently installed a PET Wire extrusion coating line for making colorful decorative wires. But the m.s. bright wet drawn 1.00mm dia. wire has black residue of the soapy solution — which is not easily removed with 80-90 °C Hot water at speed of 400 mtr/min.
If I use Tricholoroethylene, it may ignite in the induction preheater coil placed before the extrusion coating die.
Any good workable high pressure jet or rotary washing possible?
ESMAIL TAIYEB GODHRAWALA
– MUMBAI, India
August 1, 2024