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Butcher · 01-05-2002, 01:33 PM

For my block I use 80 lead / 18 tin / 2 silver "aluminioum" solder. It's deisgned for joining Al brass copper and the like. Silver makes it quite a lot harder. Melting temp of about 250C iirc. 5 core flux. I also use some generic plumbing flux, it's zinc choride based I believe. I don't normally have a problem with heat - the solder runs like water, and if it's properly fluxed will leave a thin silvery layer if poured off. I typically put a layer about 0.5-1mm thick on and then bring the other secon of the joint into the heat as well, then heat it all till the solder flows and leave to cool in air. My block has been dropped, hit with a hammer and put in a vice with no joint problems.

01-05-2002, 01:33 PM	#18
Butcher Thermophile Join Date: May 2001 Location: UK Posts: 1,064	For my block I use 80 lead / 18 tin / 2 silver "aluminioum" solder. It's deisgned for joining Al brass copper and the like. Silver makes it quite a lot harder. Melting temp of about 250C iirc. 5 core flux. I also use some generic plumbing flux, it's zinc choride based I believe. I don't normally have a problem with heat - the solder runs like water, and if it's properly fluxed will leave a thin silvery layer if poured off. I typically put a layer about 0.5-1mm thick on and then bring the other secon of the joint into the heat as well, then heat it all till the solder flows and leave to cool in air. My block has been dropped, hit with a hammer and put in a vice with no joint problems. __________________ Once upon a time, in a land far far away...