An essential element to all of our Aluminum soldering is Zinc - TopicsExpress



          

An essential element to all of our Aluminum soldering is Zinc (Zn). Zinc lowers the melting point and is low-cost. However it is highly susceptible to corrosion and oxidation in air, therefore zinc-containing alloys are unsuitable for some purposes, e.g. wave soldering, and zinc-containing solder pastes have shorter shelf life than zinc-free. Can form brittle Cu-Zn intermetallic layers in contact with copper. Readily oxidizes which impairs wetting, requires a suitable flux. en.wikipedia.org/wiki/Zinc
Posted on: Mon, 17 Jun 2013 13:37:00 +0000

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