SOHC.co.uk Forums > CB750
Soldering Cable Nipples
paul G:
It's quite simple if you use a solder pot and bog standard plumbing flux.
You do need to try and create the birds cage or something similar.
Moorey:
--- Quote from: paul G on February 02, 2018, 11:40:14 PM ---It's quite simple if you use a solder pot and bog standard plumbing flux.
You do need to try and create the birds cage or something similar.
--- End quote ---
What do you mean by birds cage.
paul G:
--- Quote from: moorey on February 03, 2018, 08:02:21 AM ---
--- Quote from: paul G on February 02, 2018, 11:40:14 PM ---It's quite simple if you use a solder pot and bog standard plumbing flux.
You do need to try and create the birds cage or something similar.
--- End quote ---
What do you mean by birds cage.
--- End quote ---
Have a quick look on Venhill's web site and it shows you.
Just some way of splaying out the cable.
Moorey:
I have had a look and can see why they would use that tool in a production environment, but it is perfectly good enough to splay out the end of the cable.
Many moons ago I was taught about wire ropes and cables at British Ropes Wakefield, back then British ropes were a massive company. Anyway contrary to what people think, there is actually very little or no tinning happens between the wire and the solder. The joint relies on friction for the wire not to pull out of the nipple, not a bond between solder and wire. The solder flows between the cleaned wires and as it cools it contracts and grips the wires. The contraction of the solder on solidifying and cooling to atmospheric temperature produces compressional forces sufficient to develop a frictional resistance of the order of 700 lb. per square inch of wire surface. This is on a straight wire. Slightly bending or curving the wires will increase this frictional force by up to 3 times.
This is why Silver Soldering is not advisable. Things just get too hot and damage the cable even though it does look to have done a better job.
May be of interest to some .
Funny how some things just stick with you. The destruction testing of big ropes was impressive. :)
Tomb:
Its a similar idea to the lead/wire security tags I use for Pressure Relief Valve work. The lead is crimped onto braided wire using a hand tool and is tough to shift. The bunching up or splaying of motorcycle cable ends assists the solder gripping.
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