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日本灰铸铁的最新研究动态１灰铸铁凝固的研究采用激光变位计的浮子法，测定了凝固膨胀和收缩量。在共晶凝固膨胀率△Ｖ／Ｖ（％）与ＣＥ＝Ｃ＋Ｓｉ／５间有着正比例关系：△Ｖ／Ｖ＝１．５７（ＣＥ－２．０８），可推算出凝固膨胀量为３％时的膨胀压力为３ＧＰａ～４．５...
The latest research trends of gray cast iron in Japan 1 Study on solidification of gray cast iron The float expansion method of laser displacement gauge was used to measure the solidification expansion and shrinkage. The eutectic solidification expansion rate △ V / V (%) and CE = C + Si / 5 has a proportional relationship: △ V / V = 1.57 (CE-2.08), can be calculated when the amount of solidification expansion of 3% Expansion pressure of 3GPa ~ 4.5 ...