濡れ性の異なるスライディングゲートに付着する気泡の挙動

抄録

In the current continuous casting, biased flow of molten steel in the mold leads to entrapment of nonmetallic inclusions, and hence, severe defects of the steel products are caused. Bubble attachment to the sliding gate appears to be the main cause of the biased flow. In this water model study, patterns of bubble attachment to the sliding gate were experimentally investigated. Also, the velocity of water flow around the sliding gate was measured using particle image velocimetry (PIV). The patterns of bubble attachment were classified into four types. The water flow around the sliding gate fluctuated strongly under a specific bubble attachment pattern.