外来介在物の成因に関する鉱物学的研究

概要

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In order to know the source of macroscopical inclusions by mineralo-chemical method, mineralogical composition and microscopical structures of exogenous source substance in steelmaking process of bottomand top teeming ingot were investigated in connection with those of ingot scums. The following conclusions were obtained. (1) The values of CaO/SiO_2, CaO/Al_2O_3 and (Fe, Mn) O/SiO_2 of exogenous source substance fell gradually with progress of casting process, and the values of constituent minerals of ingot scums were equal to those of altered refractories at the end of casting process. (2) The chemical and mineralogical composition of ingot scums was similar to that of altered refractories at the end of casting process, and it was considered that mixing of these altered refractories played an important part in forming ingot scums.
社団法人日本鉄鋼協会の論文
1970-11-01