著者

小川 雄司 丸岡 伸洋

出版者

一般社団法人 日本鉄鋼協会

雑誌

鉄と鋼 (ISSN:00211575)

巻号頁・発行日

vol.100, no.4, pp.434-444, 2014 (Released:2014-03-31)

参考文献数

92

被引用文献数

8 15

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Progress of hot metal treatment technology in Japan and scientific researches which supported the technology are outlined.To meet the increasingly severe customer requirements for steel properties, integrated steelmakers developed technologies for purifying molten steel, centering on the divided refining process, consisting of hot metal treatment, BOF decarburization and secondary refining. The hot metal treatment processes were put into practice at almost all steelworks in the 1980 s.Since the 1990 s, all companies have improved and restructured the hot metal treatment facilities, aiming at not only improvement of refining efficiency so as to achieve a higher degree of purity steel with higher productivity at lower cost, but also reduction in slag volume with the environmental problems taken into consideration.The directions in which hot metal treatment technology is to be pursued in the future are also commented briefly.

著者

小川 雄司 川上 博士 鈴木 実平 尾崎 仁志 沓名 宗春 井上 裕喜 齋藤 清隆

出版者

一般社団法人 日本機械学会

雑誌

生産加工・工作機械部門講演会 : 生産と加工に関する学術講演会

巻号頁・発行日

vol.2014, pp.265-266, 2014

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Indirect laser peening is a new laser peening technique and modifies the mechanical properties of the surface of the substrate. Metal sheet protects the substrate surface from heat affect by a plasma with laser irradiation. Because the metal sheet absorbs laser energy and reduces the peening efficiency, the features of indirect laser peening for several aluminum alloys were investigated in this study. The changes of mechanical properties by indirect laser peening were discussed by the comparison to the mechanical properties of as-received state.