Metallurgy. The floor or bottom of a furnace, on which the ore, metal, etc., is exposed to the flame. Also: a hole at the bottom of a blast furnace…
单词 | θ212724 |
释义 | society > occupation and work > equipment > furnace or kiln > furnace > parts of furnace > [noun] > hearth or floor of furnace (17) hearth1551 Metallurgy. The floor or bottom of a furnace, on which the ore, metal, etc., is exposed to the flame. Also: a hole at the bottom of a blast furnace… sole1615 The bottom, floor, or hearth of an oven or furnace. laboratory1790 Metallurgy. The hearth of a reverberatory furnace. hearth bottom1821 the floor or bottom of a hearth. mouth plate1852 A plate at the mouth of a furnace on which burning coal, etc., sits. Obsolete. open-hearth1870 Relating to or designating a steel-making process (now largely disused) in which scrap iron or steel, limestone, and pig iron are melted together… shelf1879 The charging-bed of a furnace. kitchen1881 Metallurgy. The hearth of a reverberatory furnace. Now chiefly historical. Subcategories:— parts of (5) — movable (4) |
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