球狀黑鉛鑄鐵の研究（第4報）

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書誌事項

タイトル別名
  • Spheroidal Cast Iron (Rept. 4)
  • 球状黒鉛鋳鉄の研究-4-
  • キュウジョウ コクエン チュウテツ ノ ケンキュウ 4
  • —The influences of chemical composition (S，Mn，Cr)—
  • —化學成分の影響（S, Mn, Cr）—

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抄録

  The influences of chemical composition (S, Mn, Cr) on graphite form of spheroidal iron and normal gray iron are studied. The following results are obtained. </br>  1) The sulphur content of spheroidal iron must not exceed 0.025 per cent. If the sulphur content before the magnesium treatment is over 0.1 per cent, as much magnesium as to be able to eliminate sulphur and to remain in cast iron must be added to molten cast iron. </br>  2) Chromium less than 1 per cent does not impede the spheroidal graphitization but chromium more than 1 per cent destroys the form of spheroidal graphite. </br>  3) Manganese less than 12 per cent in spheroidal iron, does not impede the spheroidal graphitization but more than 10 per cent contained in it, makes size of spheroidal graphite very fine. </br>  4) The influence of sulphur, manganese and chromium (carbide stabilizer) on hyper eutectic gray cast iron. </br>    a) If sulphur is contained over 1 per cent, the cementite and the lump graphite (nearly spheroidal) is crystarized. </br>    b) If manganese and chromium are added to gray iron, the cementite and the very small lump graphite are crystalized.

収録刊行物

  • 鋳物

    鋳物 26 (6), 290-295, 1954

    公益社団法人 日本鋳造工学会

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