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flux

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flux

In smelting, a substance that combines with the unwanted components of the ore to produce a fusible slag, which can be separated from the molten metal. For example, the mineral fluorite, CaF2, is used as a flux in iron smelting; it has a low melting point and will form a fusible mixture with substances of higher melting point such as silicates and oxides.

flux

In soldering, a substance that improves the bonding properties of solder by removing contamination from metal surfaces and preventing their oxidation, and by reducing the surface tension of the molten solder alloy. For example, with solder made of lead–tin alloys, the flux may be resin, borax, or zinc chloride.



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? Mentioned in ? References in classic literature
 
PEGAMOID- (1) Personally we prefer glass or flux compounds to any other material for winter work nose-caps as being absolutely non-hygroscopic.
Actions and Reactions by Kipling, Rudyard View in context
Certain it is, that the matter is in a perpetual flux, and never at a stay.
The Essays by Bacon, Sir Francis View in context
On the brink of departure she was always seized with a flux of words.
Ethan Frome by Wharton, Edith View in context
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