(1) Lehrbuch der Eisenhüttenkunde: verfasst für den Unterricht, den Betrieb und das Entwerfen von Eisen-hüttenanlagen (2) The Metallurgy of Steel

Abstract

WHILST primitive methods of making malleable iron or steel were mainly conducted in such a way that the product was obtained directly from the ore without a preliminary fusion, almost the whole of the modern product is obtained in the first instance as pig-iron, a readily fusible mixture of iron with carbon, silicon, and other elements derived from the ore and the fuel, these impurities being afterwards remove.d by processes based on differential oxidation. This roundabout method has proved in practice to have such great advantages, both chemical and economic, that it has become the universal practice. Attempts now being made to re-introduce the old direct process in a greatly improved form have to contend against the fact that smelting in the blast-furnace, at first sight a crude device for extracting iron from its ores, has reached a condition of high efficiency, making it very difficult for a new process to prove any superiority in economy, whatever its apparent theoretical advantages.

(1) Lehrbuch der Eisenhüttenkunde: verfasst für den Unterricht, den Betrieb und das Entwerfen von Eisen-hüttenanlagen.

Von Prof. Dr. Bernhard Osann. Zweite neubearbeitete und erweiterte Auflage. Erster Band: Roheisenerzeugung. Pp. xi + 923. (Leipzig: Wilhelm Engelmann, 1923.) 29s.

(2) The Metallurgy of Steel.

By F. W. Harbord J. W. Hall. (Griffin's Metallurgical Series.) Seventh edition, thoroughly revised. Vol. 1: Metallurgy; by F. W. Harbord. Pp. xii + 545 + 41 plates. Vol. 2: Mechanical Treatment; by J. W. Hall. Pp. xv + 553 + 42 plates. (London: C. Griffin and Co., Ltd., 1923.) 32s. net each vol.