| Electronics > Repair |
| Splicing very short AL wires |
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| Ian.M:
Incidentally the glassfibre pencil brush is https://cpc.farnell.com/unbranded/10191/fibreglass-pencil-4mm/dp/SABU10191 or similar. If its working right you can see the oil or flux turn black with abraded aluminum particles. Getting the brush clean afterwards is a PITA - I just burnt off the Vaseline with a lighter then used switch cleaner and its discoloured but at least not greasy - so it may be better to keep a brush insert just for this job. The problem with soldering wire will be keeping the oil and solder there. Try making a shallow depression near the edge of a piece of pine wood with a very small V notch up to the edge for the wire, and clamping it at the right height for the wire to be level. However the last time I needed to get a solder joint to aluminum magnet wire I crimped a duPont pin terminal to it (use a tiny smear of Noalox) and simply soldered to the pin! Its much easier and is pretty much foolproof. :horse: |
| Postal2:
--- Quote from: Ian.M on October 04, 2024, 12:27:32 pm ---... Solder was ordinary Sn60/Pb40 ......... Strength: Pulling on the wire has partially inverted the dome of the can bottom with no signs of separation. --- End quote --- I don't know how you did it. I've always been able to tear a drop of regular solder off the ruler, but with tin the wire itself just comes off. But I've tried both. Why don't you try with tin. |
| Ian.M:
.... because I don't have any SN100C solder handy. I do have a small pack of SAC405 I keep for Pb-free repair work, but at 4% silver that stuff is too pricy to mess about for no reason. I suspect we are in violent agreement that high tin solder will work to tin aluminum. You contend SnPb doesn't - others disagree. |
| Postal2:
Tin is a food metal, sold for repairing saucepans. I don't think it's a problem to find it. Try it, compare, and don't forget to tell us. |
| themadhippy:
--- Quote ---Cooking oil might work, too. --- End quote --- it does |
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