鐵合金製造の基礎的研究(第1報)

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タイトル別名
  • A FUNDAMENTAL STUDY OF THE MANUFACTURE OF FERRO-ALLOYS (I)
  • フエロマンガンに關する研究
  • ON FERRO-MANGANESE

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1) The carbon absorption by Mn-Si, Fe-Si, Mn-Fe and Mn-Fe-Si alloys had been investigated, and the results were summarized as follows:<BR>The carbon absorption by liquid Mn-Si alloys increases progressively from practically nil at about 30% Si to a high value as the silicon content decreases. It also increases with the rise of the absorption temperature. The speed of the absorption is such that the alloys are saturated with carbon relatively in a short time.<BR>The carbon absorption by the liquid Fe-Si alloys decreases with the increase of silicon and becomes insignificant when this element in the alloy exceeds 20%.<BR>The carbon absorption by the liquid Mn-Fe alloys is considerable on the manganese side but gradually decreases with the increase of the iron content. In the Mn-Fe-Si alloys, the higher the manganese content the more the carbon absorption, provided the silicon content remaining constant.<BR>2) The reaction between Mn-Si alloys and MnO-SiO2 and MnO-CaO-SiO2 slags had been studied and the results were summarized as follows:<BR>The reaction between the alloys and the slags proceeds slowly so the reduction of MnO by Si increases with the time. Higher temperature favors the reaction between them.<BR>The alloy-slag ratio that yields the maximum reduction of MnO varies with the acidity of the slag. An addition of CaO to the MnO-SiO2 slag promotes the reaction between the alloys and the slags.

収録刊行物

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 28 (5), 527-540, 1942

    一般社団法人 日本鉄鋼協会

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