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单词 halfbloom
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half-bloom
half-bloom n. Metallurgy (now historical) a thick square or mass of iron resulting from the first cycle of a process of refinement in which pig iron is heated and hammered to force out impurities; (later also) refined iron taken from the puddling furnace and then shingled or hammered.Sometimes called bloom (cf. bloom n.2 1).
Π
1678 Philos. Trans. 1677 (Royal Soc.) 12 934 The Metal runs together into a round Mass or Lump, which they call a Half-Bloom.
1824 Mechanic's Mag. 21 Aug. 383/1 The finer was drawing an ancony from the half-bloom or billet.
2002 Hist. Metall. 36 126/1 The half-bloom was heated for forging in a modern cast-iron bottom-blast blacksmith's hearth.
extracted from halfadj.
half-bloom
half-bloom n. Obs. the round mass of iron taken from the puddling furnace, which was hammered and shingled into a ‘bloom’.
ΚΠ
1678 Philos. Trans. 1677 (Royal Soc.) 12 934 The Metal runs together into a round Mass or Lump, which they call a Half-Bloom.
extracted from half-comb. form
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更新时间:2024/11/10 14:52:59