鑄鐵のガス分析に就て

概要

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A tentative model of gas-analysis equipment by vacuum-fusion method was developed with a view to investigate effects of the gas contained in the molten cast iron on the structure and character of cast iron product. Recurrence of analysis values was examined as to rimmed steel and cast iron. The following conclusions were obtained. 1) Recurrence of O_2 and N_2 analysis value for cast iron was somewhat lower than that for rimmed steel, the principal cause of difference being considered to be segregation of gas in analysis-specimens. 2) O_2 and N_2 contents of cast iron were both in the order of 0.00 χ wt% ; thus variations depending upon melting conditions could be detected by the proposed analysis method. 3) To secure higher reliability of gas analysis of cast iron, further studies should be carried out about the following points : a) To raise gas-extracting temperature. b) To improve the evacuating rate. c) To develop a sampling method with less segregation, etc.
社団法人日本鉄鋼協会の論文
1953-10-25