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Ar熱プラズマ溶解した金属ボタンからの蒸気発生と浴内対流

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Title: Ar熱プラズマ溶解した金属ボタンからの蒸気発生と浴内対流
Other Titles: Relationship between Region of Preferential Vaporization and Bath Convection in Ar Arc Plasma Melting
Authors: 何, 国偉1 Browse this author
石井, 邦宜2 Browse this author
佐々木, 康3 Browse this author
柏谷, 悦章4 Browse this author →KAKEN DB
松浦, 清隆5 Browse this author →KAKEN DB
Authors(alt): He, Guo Wei1
Ishii, Kuniyoshi2
Sasaki, Yasushi3
Kashiwaya, Yoshiaki4
Matsuura, Kiyotaka5
Keywords: Ar arc plasma melting
enhanced vaporization
convection
EPMA
Issue Date: 1-Jan-1998
Publisher: 日本鉄鋼協会
Journal Title: 鉄と鋼
Volume: 84
Issue: 1
Start Page: 31
End Page: 36
Publisher DOI: 10.2355/tetsutohagane1955.84.1_31
Abstract: In Ar arc plasma melting of metal button, metal vapor mainly generates at outer region of anode spot. To make clear the relationship between the vaporization and the convection flow in bath, spectroscopic measurements were performed for determining the space distribution of vapor pressure of metal. Then the convection flow in bath was determined by motion of Y2O3 particles added to bath surface and EPMA analysis of cross sectional area. There were two flows with different direction of motion in bath. They collided at about 7mm from central axis that is at the same position of maximum vapor pressure. Y2O3 particles were observed in the periphery owing to the outward flow. In the center of bath, it is considered that the inward flow is driven by electro-magnetic force. This flow carried the melt with high Ar content to the vaporization spot, and then an enhanced vaporization was operated due to transition of the Ar in melt to gas phase.
Rights: 著作権は日本鉄鋼協会にある
Type: article
URI: http://hdl.handle.net/2115/75660
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 柏谷 悦章

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