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11th Dec 2017, 3:00 pm | #21 | |
Nonode
Join Date: Oct 2014
Location: West Midlands, UK.
Posts: 2,181
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Re: Cutting and soldering Teflon covered wire
Quote:
Second (again of the risk of going OT), way back, we used to fit a Hellerman sleeve on the end. Better suction and if it burnt- simply cut off the burnt bit. |
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11th Dec 2017, 3:36 pm | #22 | |
Dekatron
Join Date: Feb 2007
Location: Lynton, N. Devon, UK.
Posts: 7,088
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Re: Cutting and soldering Teflon covered wire
Quote:
They work well, but need ventilation with PTFE. Keep the tip blades free from any fragments! |
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11th Dec 2017, 6:52 pm | #23 |
Dekatron
Join Date: Aug 2016
Location: Colchester, Essex, UK.
Posts: 4,108
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Re: Cutting and soldering Teflon covered wire
That light green multi-core i used on my latest meter repair is PTFE covered. Ideal for that particular application- ie multi stranded for fracture resistance but when you kink it into place it stays kinked. I too use a stanley knife blade, rolling the wire across a piece of wood and pressing lightly. Fingernails into the nick in the insulation and it comes off easily. Looking at the colour it may well be silver plated not tinned.
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11th Dec 2017, 7:11 pm | #24 |
Guest
Posts: n/a
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Re: Cutting and soldering Teflon covered wire
It is silver plated because of the extrusion temperature of PTFE, lovely stuff to work with, and a right pain to lace up, the lacing has a tendency to wander about.
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11th Dec 2017, 10:50 pm | #26 |
Dekatron
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 5,274
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Re: Cutting and soldering Teflon covered wire
I've always made a lengthwise cut and then peeled the end like a banana, snipping the 'peel' away after. Some of the panels we've had from ex-mod equipment have been made with pink ptfe wire.
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Kevin |
12th Dec 2017, 11:58 am | #27 |
Dekatron
Join Date: Jan 2012
Location: Brentwood, Essex, UK.
Posts: 5,349
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Re: Cutting and soldering Teflon covered wire
Pink was the colour specified for wire in MOD contracts in the 1970's. Cables were identified by numbered and lettered slip-on sleeves of various colours at both ends.
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12th Dec 2017, 2:56 pm | #28 | |
Dekatron
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 14,007
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Re: Cutting and soldering Teflon covered wire
Quote:
As to stripping PTFE-insulated wire, I remember the guys from GEC had a special tool (whose name I forget - something like Stall?) that was a version of the "Knipex" single action cut-and-pull type but had a gripper which rotated through an (adjustable up to about 90 degrees) amount as it pulled the cut piece of insulation off, so it essentially 'unscrewed' the insulation off the wire. |
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