[TheForge] brazing revisited

[Andy Gladish]

Thanks- the pencil trick worked very well with plumbing solder, but I  
don't think it makes a strong enough joint- I'll try one of these with  
silver braze.
The Harris 15% silver really is a pleasure to use, though color match  
isn't very good (on red brass pipe).
So far best results come from TIG weld with Silicon Bronze filler, though  
the zinc in the pipe has an annoying tendency to cook off at a few degrees  
above welding temp...takes a light touch indeed to get a decent bead.
There's a kind of momentum as I heat the pipe, once its hot enough to be  
willing to weld, difficult to back off so that the zinc doesn't burn off.
Fun stuff.
andy

On Thu, 28 Jan 2010 08:05:40 -0800, <Grover.Richardson at gtri.gatech.edu>  
wrote:

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