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Dross - Definition and Overview |
| Related Words: Alluvium, Ash, Ashes, Brand, Calx, Carbon, Charcoal, Cinder, Clinker, Coal, Coke, Deposition, Deposits, Feces, Lava, Lees, Loess, Moraine |
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Dross is a mass of solid impurities floating on a molten metal bath. It appears usually on the melting of low melting point alloys such as tin, lead, zinc or aluminum, or by oxidation of the metal(s). They can also consist of impurities such as paint leftovers. It can easily be skimmed off the surface before pouring the metal into a mold.
With tin and lead the dross can also be removed by adding caustic soda NaOH pellets which dissolves the oxides and form a slag.
Dross is distinguished from slag, which is a (viscous) liquid floating on the alloy, by being solid.
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Example Usage of Dross |
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benjamie: @hoylus You save me from having to watch Dross... I can just read your tweets. Thank you |
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DavorGoldie: @Brian_Healy I think Thompson will do just fine. He can't be any worse than the Dross we have at centre half! He looks quite imposing. |
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goonsh: @yamadamasaki 「一語で発音するなら "Dross" 、二語なら "see-loss" のリズムで」 http://j.mp/5xrPCc え！ どろす？ |
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