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-----Can bright dip help in soldering/ brazing on to copper bar?
Q. We braze Silver Cadmium Oxide tip onto copper bars and prior to brazing if the surface free of contamination, then the solder flows freely. I have told to bright dip. Also after we mfg the part we would like the parts to look clean as well as have a longer shelf life i.e not to tarnish or oxidize.Was told to bright dip. Can you advise?
Thank you,
Mfg. Of Electrical Contacts - Toronto, Ontario, Canada
2003
Q. What is the easiest and simplest way to bright dip copper or brass bars? This is to stop oxidation or tarnishing.
Zul Kassam [returning]Mfg. Of Electrical Contacts - Toronto, Ontario, Canada
A. An oxidizing agent is needed for bright dipping. Nitric acid is a possibility, but sulfuric acid plus stabilized hydrogen peroxide is very popular for that purpose. After bright dipping the bright appearance can be prolonged by application of sodium benzotriazole ⇦ on eBay or Amazon [affil link] .
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