slag

slag
slag1
—slagable, adj. —slagability, n. —slagless, adj. —slaglessness, n.
/slag/, n., v., slagged, slagging.
n.
1. Also called cinder. the more or less completely fused and vitrified matter separated during the reduction of a metal from its ore.
2. the scoria from a volcano.
3. waste left over after the re-sorting of coal.
v.t.
4. to convert into slag.
5. Metall. to remove slag from (a steel bath).
v.i.
6. to form slag; become a slaglike mass.
[1545-55; < MLG slagge; c. G Schlacke dross, slag; see SLACK2]
slag2
/slag/, n.
Brit. Slang. an abusive woman.
[1780-90; orig. an argot word for a worthless person or a thug; perh. identical with SLAG1]

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By-product formed in smelting, welding, and other metallurgical and combustion processes from impurities in the metals or ores being treated.

Slag consists mostly of mixed oxides of elements such as silicon, sulfur, phosphorus, and aluminum; ash; and products formed in their reactions with furnace linings and fluxing substances such as limestone. During smelting or refining, slag floats on the surface of the molten metal, protecting it from oxidation (see oxidation-reduction) by the atmosphere and keeping it clean. Slag cools into a coarse aggregate used in certain concretes; it is used as a road-building material, as ballast, and as a source of available phosphate fertilizer.

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      by-product formed in smelting, welding, and other metallurgical and combustion processes from impurities in the metals or ores being treated. Slag consists mostly of mixed oxides of elements such as silicon, sulfur, phosphorus, and aluminum; ash; and products formed in their reactions with furnace linings and fluxing substances such as limestone. Slag floats on the surface of the molten metal, protecting it from oxidation by the atmosphere and keeping it clean. Slag forms a coarse aggregate used in certain concretes; it is used as a road material and ballast and as a source of available phosphate fertilizer.

      Molten ash formed upon combustion of coal in some high-capacity boiler furnaces is also sometimes termed slag. See also flux.

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Universalium. 2010.

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Look at other dictionaries:

  • Slag — is the by product of smelting ore to purify metals. They can be considered to be a mixture of metal oxides; however, they can contain metal sulfides (see also matte) and metal atoms in the elemental form. While slags are generally used as a waste …   Wikipedia

  • Slag — (sl[a^]g), n. [Sw. slagg, or LG. slacke, whence G. schlacke; originally, perhaps, the splinters struck off from the metal by hammering. See {Slay}, v. t.] 1. The dross, or recrement, of a metal; also, vitrified cinders. [1913 Webster] 2. The… …   The Collaborative International Dictionary of English

  • slag — slag; slag·ger; slag·gy; slag·less; slag·man; slag·less·ness; …   English syllables

  • slag — sb., et, slag, ene, i sms. slag , fx slaglængde, slagteknik; slag i slag; et slag på tasken …   Dansk ordbog

  • Slag — es un personaje ficticio del universo de Transformers el es un miembro de los Autobots del grupo de los Dinobots y su modo alterno es un Triceratops. Historia Slag pertenece al grupo de los Dinobots junto con Grimlock su lider, Sludge, Swoop y… …   Wikipedia Español

  • slag — [slag] n. [< MLowG slagge (> Ger schlacke) < slagen, to strike: for IE base see SLAY] 1. the fused refuse or dross separated from a metal in the process of smelting 2. lava resembling this 3. [Slang, Chiefly Brit.] a) a worthless,… …   English World dictionary

  • Slag — Slag, v. i. & t. [imp. & p. p. {Slagged}; p. pr. & vb. n. {Slagging}.] (Metal.) To form, or form into, a slag; to agglomerate when heated below the fusion point. [Webster 1913 Suppl.] …   The Collaborative International Dictionary of English

  • slag — ► NOUN 1) stony waste matter separated from metals during the smelting or refining of ore. 2) Brit. informal, derogatory a promiscuous woman. ► VERB (slagged, slagging) 1) (usu. as noun slagging) produce deposits of slag. 2) …   English terms dictionary

  • slag|gy — «SLAG ee», adjective, gi|er, gi|est. of, like, or having to do with slag …   Useful english dictionary

  • slag- — *slag , *slah germ.?, Verb: nhd. feucht sein ( Verb); ne. be (Verb) damp; Rekontruktionsbasis: an.; Etymologie: s. ing. *sk̑lēk , *sk̑lək , Adjektiv …   Germanisches Wörterbuch

  • Slag — Slag. См. Шлак. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

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