Summary for electro galvanized wire drawing Discussion
electro galvanized wire drawing is the core issue here: Fayaz Shabbir Ganjifrockwala says his 16-die machine is drawing 1.60 mm wire down to 0.45 mm, but the compressed carbide dies are crashing, going oval, or causing wire breaks even with only 0.50 mm reduction per die and soap-water lubrication. Rich Weir replies that the first fix is to use an oil- or animal-fat-based water-soluble lubricant, not plain soap water, and that reductions should be planned by percentage of area rather than a fixed dimensional step. He also recommends composite diamond dies for the final four passes to improve finish. The thread later repeats a related question about drawing hot-dip galvanized wire and mild steel wire at 15% reductions, but no additional answer is shown.
Q. Dear friends,
I have a unit of electro galvanising of mild steel wire. I have a 16 die machine wherein the wire of 16 gauge (1.60 mm) is directly drawn to 26 gauge (0.45 mm). At present I am drawing electro galvanising wire in that 16 die machine using compressed carbide dies. This dies get crashed or oval shape due to some reason. At present I am drawing it in soap water. I am only giving 0.50 mm reduction on every die but the dies get crushed or the r.m. goes oval or the wire breaks due to this reason. Can someone suggest how to solve this problem of wire drawing? If possible, than do write to me or contact me.
Fayaz Shabbir Ganjifrockwala
– Nashik, Maharashtra, India
2002
Ed. note: This RFQ is outdated, but technical replies are welcome, and readers are encouraged to post their own RFQs. But no public commercial suggestions please ( huh? why?).
A. First, I recommend oil or animal fat based water soluble lube. Second, you need to know what percentage reduction the machine is, that is a percentage of the area not a fixed dimension. We do thousands of pounds a day. I also recommend final 4 dies be composite diamond for a good finish.
Rich Weir
– Norwich, Connecticut, USA
2002
Q. Dear Sir, Can someone tell me how to draw hot dip galvanised wire
from 2.40 mm to 0.50 mm in wet wire drawing machine with a reduction
of 15%? Also let me know in which dies should I draw.
Secondly, I would also like to draw 0.65 mm from 1.40 mm M.S.Wire HB.
How to draw and dies used for 15% reductions?
FAYAZ GANJIFROCKWALA
Wire Drawing – Nashik, Maharashtra, India
November 17, 2012