The casing steel is always made by electric furnace at home,but 34Mn5?37Mn5 casing steel is made by converter instead in Tianjin Iron & Steel Co.Ltd. The manufacture is controlled according to the technique points...The casing steel is always made by electric furnace at home,but 34Mn5?37Mn5 casing steel is made by converter instead in Tianjin Iron & Steel Co.Ltd. The manufacture is controlled according to the technique points so that the composition and the macrostructure of the round billet can meet the quality requirement. There is no failed products resulted from the quality of casting billet.At the same time, the first operation of aluminium-containing steel of conveter and the problems encountered are analyzed.展开更多
文摘The casing steel is always made by electric furnace at home,but 34Mn5?37Mn5 casing steel is made by converter instead in Tianjin Iron & Steel Co.Ltd. The manufacture is controlled according to the technique points so that the composition and the macrostructure of the round billet can meet the quality requirement. There is no failed products resulted from the quality of casting billet.At the same time, the first operation of aluminium-containing steel of conveter and the problems encountered are analyzed.