| 单词 |
smelting |
| 释义 |
smelting
smelt 1 S0494100 (smĕlt)v. smelt·ed, smelt·ing, smelts v.tr. To melt or fuse (ores) in order to separate the metallic constituents.v.intr. To melt or fuse. Used of ores. [Dutch or Low German smelten, from Middle Dutch or Middle Low German; see mel- in Indo-European roots.]
smelt 2 S0494100 (smĕlt)n. pl. smelts or smelt Any of various small silvery marine, freshwater, and anadromous food fishes of the family Osmeridae, found in cold waters of the Northern Hemisphere, especially Osmerus mordax of North America and O. eperlanus of Europe. [Middle English, from Old English; see mel- in Indo-European roots.]
smelt 3 S0494100 (smĕlt)v.A past tense and a past participle of smell.smelting (ˈsmeltɪŋ) n (Metallurgy) the process of extracting a metal from an ore by heatingTranslationsIdiomsSeesmeltsmelting
smelting, in metallurgy, any process of melting or fusion, especially to extract a metal from its ore. Smelting processes vary in detail depending on the nature of the ore and the metal involved, but they are typified in the use of the blast furnaceblast furnace, structure used chiefly in smelting. The principle involved in this means of extracting metals is that of the reduction of the ores by the action of carbon monoxide, i.e., the removal of oxygen from the metal oxide in order to obtain the metal. ..... Click the link for more information. .Smelting the process of converting ores, usually metal ores, in smelting furnaces to produce a final product in molten form. Blast-furnace smelting is used in metallurgy for extracting metals from ores. Solid or molten metallic charges are converted by smelting in open-hearth furnaces, electric furnaces, and oxygen-Bessemer furnaces. Ferrous alloys and nonferrous metals are refined by smelting. Other applications of smelting are the production of alloys and the fusion of solid metals for pouring into cast ingots or for making intricate castings. A single cycle of the smelting process, as well as the resulting product is sometimes referred to as a smelt. smelting[′smelt·iŋ] (metallurgy) The heating of ore mixtures accompanied by a chemical change resulting in liquid metal. |
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