炭素の拡散から見た古代及び前近代の鋳鉄脱炭技術 Decarburizing Techniques of Cast Iron in Ancient and Pre-modern Times in View of Carbonic Diffusion

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  Decarburizing techniques of cast iron in old times were studied in view of reactive diffusion to clarify their mechanism. An ax excavated from remains of the Yayoi era shows decarburized microstructure of white cast iron. The time and temperature of decarburization calculated on the basis of reactive diffusion is considered reasonable for the era. Decarburization at solid-liquid coexisting temperature is regarded as a phenomenon of reactive diffusion which forms a solid layer. The rate of decarburization at this temperature, therefore remains low. Paddling of molten iron, which fractures the solid layer to replace it with fresh molten iron, seems to be an excellent technique for markedly increasing the decarburizing rate. Paddle Process of refining invented in England, as well as the refining process using reverberatory furnace to cast canons at the end of the Edo era in Japan, are considered to be advanced decarburizing processes by means of paddling. Sagé Process of refining in pre-modern times in Japan seems to be a decarburizing process which is accelerated by the included gas bursts at the front of the decarburized layer.

収録刊行物

  • 鋳造工学 = Journal of Japan Foundry Engineering Society  

    鋳造工学 = Journal of Japan Foundry Engineering Society 78(9), 470-477, 2006-09-25 

    Japan Foundry Engineering Society

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各種コード

  • NII論文ID(NAID)
    10018053074
  • NII書誌ID(NCID)
    AN10514770
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13420429
  • NDL 記事登録ID
    8092506
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-277
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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