コールドクルーシブル浮揚溶解法を用いた鋼中介在物迅速評価

概要

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Rapid evaluation method of inclusions in steel by use of cold crucible levitation melting has been developed. More than 70% of inclusions in steel were concentrated in surface layer of 70μm thick by cold crucible melting in 5 min. Size distributions of alumina and slag type inclusions, and component of slag type inclusions were not remarkably changed by the fusion. X-ray fluorescence (XRF) with energy dispersive detection and fundamental parameter technique were employed to assess steel cleanliness rapidly. Indices of content could be obtained by XRF for alumina and slag type inclusions, respectively. Analytical time of 2.5min was achieved when the sample was rotated during the measurement.
社団法人日本鉄鋼協会の論文