flux
Sign in to saveAlso known as soldering flux, metallurgical flux
type of chemicals used in metallurgy added to the molten metals to bond with impurities that can be removed
~33 min read
Encyclopedic overview
Rosin used as flux for soldering A flux pen used for electronics rework Multicore solder containing flux Wire freshly coated with solder, held above molten rosin flux
In metallurgy, a flux is a chemical reducing agent, flowing agent, or purifying agent. Fluxes may have more than one function at a time. They are used in both extractive metallurgy and metal joining. They are named for the ability to make molten metals easier to flow during smelting.
Excerpted from Wikipedia’s “flux” article, available under the CC BY-SA 4.0 licence.