Siver soldering bandsaw blade

One way my dad use to solder blades is prepare the ends of the blades with a tapered lap joint. Apply flux and a piece of flat silver solder, then using a set of soldering pliers that have been heated to red hot with an acetalen (sorry for spelling) torch, then gripping the band with the pliers.

His pliers where about 18" long, (end to end). The heating end was 1/2" square iron stock.

Should only take 30 secs or so to solder the joint.

As for the black gunk, it sounds like you are getting contamination from your torch.

Hope this helps. If needed, I could probably get a pic of the pliers. Just let me know.

Just remove the dashes from my address

James

R> Hello

drop the .clark to

James wrote:

I believe flux can go bad. I've not soldered B/S blades, but this past winter I was intalling a new bath & shower control valve. The flux I had on hand caused the solder to behave exactly as you described. I bought a new container and the soldering went smoothly and flowed just as you would expect.