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Hints, Tips and Solutions (Do NOT post requests for help here) If you have any useful general hints and tips for vintage technology repair and restoration, please share them here. PLEASE DO NOT POST REQUESTS FOR HELP HERE! |
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9th Nov 2014, 12:24 am | #21 |
Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,863
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Re: Soldering Aluminium
I used to have a little Valtock jeweller's meths blowlamp that was quite useful and served for soldering away from mains for me. Not sure where it is now.
David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done |
9th Nov 2014, 11:56 pm | #22 | |
Hexode
Join Date: Jan 2013
Location: Ă…lesund, Norway
Posts: 361
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Re: Soldering Aluminium
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This repair material from Magna is usefull to replace brushes on some of those modern motors with aluminium field windings and all that is available of brushes are those with copper braids. They have to be attached somehow or the motor scrapped. In production they are "resistance" welded or almalgamated aluminium to copper. Regardless, shame I did not keep the sample that I hard soldered together. |
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10th Nov 2014, 9:27 pm | #23 | |
Hexode
Join Date: Jan 2013
Location: Ă…lesund, Norway
Posts: 361
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Re: Soldering Aluminium
The flux used in joining aluminium to copper and brass was the key component to the sucess of the "filler material" or solder if you will. The flux was a powder that had to be mixed with distilled water prior to use.
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Tony |
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11th Nov 2014, 5:07 pm | #24 | |
Nonode
Join Date: Mar 2010
Location: Dukinfield, Cheshire, UK.
Posts: 2,037
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Re: Soldering Aluminium
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I've also used the 'rubbing' method on stainless steel (or it may have been 'staybright' or similar) I wanted to join a length of wire to a s/s whip antenna, but couldn't be bothered finding some acidic flux or whatever is required. So I used an ordinary 25 watt iron, ordinary flux and plenty of rubbing. After quite a while a tiny pinprick of solder bonded, and after that I managed to make it cover a larger area and successfully soldered the wire in place.
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Andy G1HBE. |
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12th Nov 2014, 10:39 am | #25 |
Retired Dormant Member
Join Date: Sep 2003
Location: Bristol, UK.
Posts: 808
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Re: Soldering Aluminium
This has reminded me of an advert I saw in an old technical magazine, probably from the 1950s or 60s. It was a soldering iron I think by Solon specifically for soldering aluminium. It looked like a normal soldering iron with a piezo electric unit that produced a sonic vibration at the tip. This was claimed to clear away the oxide on the metal. I have seen no references to it since so suspect it was not very successful.
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