CONTINOUS CASTING MOLD

WIPO Patent Application WO/1981/001808

A1

A problem encountered in a continuous casting operation is that a cast piece seizes to the inside surface of a casting mold when the cast piece is withdrawn from the mold. It is known therefor to mount a plurality of ultrasonic vibrators at prescribed intervals along at least one straight line in the axial direction of the mold on the outer surfaces of the respective side walls thereof. The vibratory action of the ultrasonic vibrators causes the mold to vibrate in the axial direction so as to prevent the seizure of the cast piece onto the inner surface of the mold The vibrational efficiency induced by the ultrasonic vibrators is unsatisfactory with the aforementioned conventional mold so that it has not been possible to reliably prevent the seizure of the cast piece onto the inside surface of the mold. The continuous casting mold of the invention eliminates the aforementioned problem and vibrates efficiently, and includes a plurality of ultrasonic vibrators mounted at prescribed intervals along at least one straight line in the axial direction of the mold on the outer surfaces of the respective side walls of the mold. The vibrators generate oscillatory waves of the same wavelength in the axial direction of the mold, the prescribed spacing between vibrators being equal to 1/2 of the wavelength of the oscillatory wave produced in the axial direction of the mold. The oscillatory waves generated by two adjacent ones of the ultrasonic vibrators are phase shifted by 180 .

HASEBE N (JP)
KOMINE I (JP)
KAWADA H (JP)

PCT/JP1980/000308

July 09, 1981

December 16, 1980

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NIPPON KOKAN KK (JP)
HASEBE N (JP)
KOMINE I (JP)
KAWADA H (JP)

B22D11/053; B22D11/04; (IPC1-7): B22D11/07

JPS5486432A

1979-07-10

See also references of EP 0042007A4

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