| 摘要 |
PURPOSE: A device for generating micro-bubbles is provided to supply micro-bubbles to the inside molten metal regardless of the diameter of an outlet by concentrating pressure waves on a concave unit. CONSTITUTION: A device for generating micro-bubbles comprises a body unit(120), a vibration transfer unit(140), and an outlet member(160). The body unit comprises an ultrasonic vibrator. The vibration transfer unit is extended from the body unit and transfers ultrasonic vibration to supplied gas. The outlet member is installed in the vibration transfer unit and comprises a concave unit(162) on which wave pressure generated from the ultrasonic vibrator is concentrated. |
