Unless I am misinterpreting, I believe that a couple of posters here are confusing silver soldering, sometimes called silver brazing, with the process of true brazing.
Silver solder is an alloy of silver in varying proportions, with copper, zinc, and rarely now, cadmium. Silver solder, depending upon the alloy, normally flows at between 1100F and 1250F.
True brazing is done with either bronze(normal), or brass, either in stick form, or sometimes ground into a powder and combined with the apropriate flux. The flow temperature of brazing metal is typically between 150F and 300F higher than that of silver solder.
If you take a gun that has been oven brazed, you cannot remove the ribs even with an oxy-acetylene torch. One advantage of oven brazing is that with a modern oven, the process is performed either in a vacuum or in an inert atmosphere, thereby avoiding any oxidation and the need for flux. Also, the temperature can be precisely controlled and heat-treating can even be done as a final step.
Last edited by Ron Vella; 01/23/09 09:39 AM.
