We have a 23 mtrs long wire patenting furnace having four zones and 7 mtrs long Lead Bath furnace.The wire details are...

1.Wire Dia.- 3.15mm

2.Material Grade - AISI 1070

3.Speed - 27 mpm

please suggest the sutaible zone temperature and Lead Bath furnce to get the fully pearlitic structure.

For a good wire drawing practise it is recomended to look for a patenting structure of 85% fine perlite and 15 % coarse or medium resolvable perlite.

It is convenient to have the temperatures of the furnace constant and adjust speed accordingly to the obtained structures.

Common temperatures are (+ -) 1000 oC on the furnace and 500 oC on the lead .
It is convenient to keep the first zones on 1000 oC , the soaking or stabilizing zones can be at lower temperatures.
The reducing and presure atmospher on furnace is very import to avoid lead drag out.


Eduardo Anaya
Senior Consultant
INDEPA S.C.
Mexico City
Tel(011-52)555-407-7451
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