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If you have a question regarding coaxial, telephone, and building wire, power cable, insulation, extrusion, bunching, stranding, braiding, etc. post it here.

TOPIC: Elongation

Elongation 7 months 4 weeks ago #2737

  • Mr Nima Rahati
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Hi
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.!!!

Information:
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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Re: Elongation 7 months 5 days ago #2748

  • Richard Burke
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So what is problem? Not enough elongation? Cracking insulation? Does insulation crack after you have elongated or on 3x mandrel?
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