熔鋼及び鋼滓による造塊用煉瓦の侵蝕に関する研究 (I) : 熔鋼によるシヤモット煉瓦の侵蝕その 1

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The authors studied on the corrosion of chamotte bricks by various molten steels, with the reformed crucible method. The results obtained were as follows : (1) The corrosion of chamotte bricks by the molten steel were influenced by the [Si], [Mn] and [FeO] in the molten Steel The [Mn] and [FeO] promote the corrosion and the [Si] hold in check. (2) If the elements which have great affinity for oxygen were presence in the molten steel, the corrosion decreased. (3) The corrosion by molten iron and [FeO] increased hastily when [Mn] content in the molten steel decreased. (4) The corrosive reaction is then (SiO_2) in brick+2[Fe]→2[FeO]+[Si]……(1) (SiO_2) in brick+2[Mn]→2[MnO]+[Si]……(2) x(SiO_2) in brick+y(FeO)+z(MnO)→(SiO_2)_x・(FeO)_y・(MnO)_z…(slag)……(3) According to results of this study, the corrosion by [Mn] in the molten steel is slight in comparison with the corrosion by molten iron or [FeO]. Specially as the [Mn] content is low the controlling reactions for corrosion are (1) and (3) reactions.
社団法人日本鉄鋼協会の論文
1955-12-01