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1 v : to join two metals together using a metal alloy that melts, by industry convention, below 427 degrees C (800 degrees F). The two metals to be joined do not melt but may either show slight surface alloying with the solder or, in the case of plated components, the plating may become alloyed into the solder. Contrast braze. 2 n : a metal alloy with a melting point below 427 degrees C (800 degrees F). Tin/lead alloys are the most common alloys used for soldering. 80%/20% gold/tin alloy is often used to solder metal covers to metallized or metal seal rings on ceramic packages. Also see preform.
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