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4 years 3 weeks ago #2737 by Mr Nima Rahati
Mr Nima Rahati created the topic: Elongation
In copper wire enameling process :
For size 0.50 mm the elongation of bare wire after anneal tube is 37 - 39% and after enameling elongation is about 22 - 24% and after elongation test we have cracks.!!!

Wire size: 0.50 mm
Enamel type: PEI
Number of passes : 11
Wire speed : 140 m/min
Anneal temperature : 560 oc
Oven temperature : 560 oc

Thanks a lote

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4 years 1 day ago #2748 by Richard Burke
Richard Burke replied the topic: Re: Elongation
So what is problem? Not enough elongation? Cracking insulation? Does insulation crack after you have elongated or on 3x mandrel?

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