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welding copper
Will Jones -
Saturday, March 15, 2008 - 1:23pm
Hello all, I've also got a very few phosphor bronze rods I got from my old work before they shut down. These are my "magic" rods I use for cast iron repairs, and joining most dissimilar metals.I don't claim to understand the metallurgy involved, but they just seem to work for me. They also seem to do a lovely job on copper sheet, weld easy and smooth, and good colour...so being as I'm going to be spending a fair few pennies on rods, I'd rather get the one's I'm used to, and that're multifunctional..unless anyone knows a good reason not to use em - or the silcon copper rods( which I've never tried) will do everything the phosphor bronze do but better! Any advice appreciated, as always. |
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Copper rods
If you must have the best color match, you should probably go with deoxidized copper rods. That is the true welding, anything else is really brazing.
The phos-copper rods, like Silflo, are easy to use on copper, no flux needed, nice. But if you grind it, the color is like steel, so I never use them.
Silicon Bronze rods are close to copper color, use with flux.
I tried low-fuming brass, but it came out yellow.
I have a photo showing the various materials on a test coupon, that I should probably post, but I need to figure out how.
Richard
http://www.fergusonsculpture.com
Sculptures in copper and other metals