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Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Advanced Real Time Imaging for Materials Science and Processing
Presentation Title Water Model Experiments of Adhesion of Particles on the Air Column Formed by Swirl Flowin the Pouring Nozzle of Casting Process
Author(s) Hiroshi Harada, Yuto Yoshida
On-Site Speaker (Planned) Hiroshi Harada
Abstract Scope Ar bubbling is widely utilized to remove non-metallic inclusions from molten metal in the refining process. However, it is well-known that the adhesion of inclusions onto the bubbles has been governed by wettability between liquid metal and inclusions. Water model experiments have advantages that can easily change the contact angle between water and particles by using surface treatment agents. In this study, the air column is formed in the centerline of the nozzle by applying the swirl in the top portion of the entry nozzle and then the effect of wettability on the adhesion behavior of particles onto the air column has been investigated by water model experiments. As a result, in the case which the density of particles is less than the one of water, it has been confirmed that particles are accumulated on the surface of air column by the centripetal forces independent of the contact angle.
Proceedings Inclusion? Planned:

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Water Model Experiments of Adhesion of Particles on the Air Column Formed by Swirl Flowin the Pouring Nozzle of Casting Process
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