Things You'll Need
Instructions
Hand-sand the edges of the buckle that need to be welded. This will expose the silver and remove any debris that would inhibit a strong weld.
Set the buckle pieces flat on a heat-resistant surface and space them apart about one-quarter the diameter of the soldering rod.
Heat the buckle pieces, gradually, with your torch. Do not melt them.
Coat the solder with flux and melt the flux and solder into the gap between the buckle pieces. The weld will overflow slightly when the gap is filled properly. Let the solder cool.
Sand the weld lightly using fine sandpaper. Buff the weld until it matches the silver on the buckle.