METHOD FOR CONTROLLING ULTRASONIC OUTPUT IN CONTINUOUS CASTING

摘要

PURPOSE:To reduce the size of an installation and to execute stable casting by detecting the frictional force between a continuous casting mold and ingot at all times and controlling the ultrasonic output applied thereto thereby maintaining the frictional force at a specified value and eliminating the impression of excessive ultrasonic oscillation. CONSTITUTION:The continuous casting mold 2 and a molding flask 3 are supported by load cells 5 of an oscillation stand 4. The frictional force between the mold 2 and the ingot 1 is detected by the cells 5 and is compared by reference frictional force by an arithmetic unit 8. An ultrasonic vibrator 9 is operated to control the applied ultrasonic wave in order to correct the difference therebetween. The ingot 1 is moved always constantly, by which the stable casting is executed and the size of the ultrasonic oscillator is reduced.