Small pieces to larger pieces. Difficult.
I have a large propane burner set up like a gas ring (a gas camp stove
will also do) between two firebricks with mesh on top, and this I use to
heat up large bits that I place on stainless steel mesh over the flame.
THEN when the big piece is hot, the flux looking good and flowing well, I
use my oxy/propane torch to do the last bit of soldering the little bit
Someone mentioned to pre-melt some solder onto the little piece first -
good advice. So that’s 2 stages - 1. melt a bit of solder onto the little
piece. and 2. heat the big piece and WHEN THE TEMP IS RIGHT with p the
flux looking active, bring the little piece ino the hot area. If the temp
is right (evenly hot on both pieces) it will solder. If not hot enough, it
won’t - SO REMOVE THE LITTLE PIECE, add more flux if neccessary, and keep
on heating the big piece. Try again in a few more seconds.
I think we’re all assuming you have a sufficiently hot torch. You may not
And the shapes of the two pieces may make my advice not so useful.
We really need to know more about the shapes, the sizes, the fluz, and the
B r i a n � A d a m J e w e l l e r y E y e w e a r �
@Brian_Adam1 ph/fx +64 9 817 6816 NEW ZEALAND
http://www.adam.co.nz/crit2.htm Recent Work
http://www.adam.co.nz/ruthbaird/ across the bench from me