製鋼技術の100年 −高品質鋼の高能率量産システムへの軌跡−
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概要
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Progress of steelmaking technology in Japan over the last 100 years is reviewed covering hot metal treatment, primary steelmaking with open hearth furnaces, converters and electric arc furnaces, secondary refining of steel with degassers and ladle furnaces, and ingot-/continuous-casting.Key issues that contributed considerably to the progress of the unit processes are highlighted with scientific, technological and engineering breakthroughs involved. Systematization of the unit processes, that optimized full cost, productivity and quality of steel products to meet the constraints on the resources and socioeconomic demands of the steel market at times, is depicted as another key issue for the successful systematization.Possible future development of steel technology is briefly commented on the basis of the above observation.