電氣爐鑄鐵の性質に就て (II)

概要

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Owing to investigate the properties of cast iron melted by an electric furnace, we have freshly held the Matsumura's repeated test and O_2 analysing test, and report its test results. The results obtained are summarised as follows : -(1) Cast iron melted by an electric furnace contains more O_2 (FeO) and H_2 gas than melted by cupola. (2) The more the O_2 (FeO) content, the more abnormal the graphite distribution. The more abnormal the graphite distribution, the lower the impact value. This is the cause of brittleness of cast iron melted by an electric furnace. (3) The more the H_2 content, the more easily be found the shrinkage cavity. This is the cause of shrinkage cavity of cast iron melted by an electric furnace, we assumed.
社団法人日本鉄鋼協会の論文
1951-08-25