. The Iron and steel magazine. ^ carbon. Aluminates of lime and magnesia, made from a mixture ofbauxite, w4th limestone or dolomite, give favorable results. Theaddition of calcium fluoride makes it more fusible and mobile. The functions of the furnace are characterized as follows:In the oxidation chamber the zone of most intense heat is, ofcourse, found close to the contact of the metal and slag, and it isin this region that the reduction of the oxides is effected at theexpense of the silicon, and of the manganese and carbon of themetallic 4o6 The Iron and Steel Magazine U 2 According t
. The Iron and steel magazine. ^ carbon. Aluminates of lime and magnesia, made from a mixture ofbauxite, w4th limestone or dolomite, give favorable results. Theaddition of calcium fluoride makes it more fusible and mobile. The functions of the furnace are characterized as follows:In the oxidation chamber the zone of most intense heat is, ofcourse, found close to the contact of the metal and slag, and it isin this region that the reduction of the oxides is effected at theexpense of the silicon, and of the manganese and carbon of themetallic 4o6 The Iron and Steel Magazine U 2 According to the proportion of reducible oxides, the reactionis more or less rapid, and is evidenced by the turbulence of thebath, which stirs the metal and aids the oxidation by constantlychanging the surface of contact. The oxidizing action is keptgoing and its intensity and rapidity regulated by the carefulintroduction of oxide of iron or by stirring. Because of the high temperature, the elimination of thecarbon is effected almost at the same time as that of the siliconand manganese. By means of the method of circulation adopted, the refinedmetal in (i) passes next into compartment (2), where the reduc-tion of the dissolved ferricoxide and the recarburizationof the metal takes two operations areaccomplished entirely by theadmission of carbon in theform of coke, of iron or ofcasting specially prepared bythe fusion of iron or steel inthe electric furnace in thepresence of a great excess ofcarbon. In raising the metalto a sufficient tempe
Size: 1275px × 1960px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectiron, bookyear1898
