各種鐵鑛石の物理的及び化學的性質に就て

概要

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Iron ores used in a blast furnace are subjected to various changes. In this connections, a series of chemical investigations have been informed, nevertheless few physical investigations. Of course, just as the reducibility of iron ore is much influenced by its chemical composition and the conditions of reducing gas, some physical properties such as porosity, expansion, shrinkage, softening temperatuer under load and crushing strength at high temperature, have great influence on the reducing property. Thus, various iron ores occured in different districts as Nippon, Korea, Manchuria, China and some districts of the South Seas were measured relating to the following properties : 1. Expansion and shrinkage at high temperatures (in air and in reducing gas). 2. Softening temperature under load (in air and in reducing gas). 3. Crushing strength at high temperatures. 4. Permeability to gas. 5. Thermal analysis. 6. Conductivity of heat at high temperatures. 7. Chemical compositions and microscopic structure.
社団法人日本鉄鋼協会の論文
1942-03-25