Patent classifications
B22D11/166
METHOD FOR OPERATING CONTINUOUS CASTING MACHINE
A primary object of this invention is to provide a method for operating a continuous casting machine with which a mold can oscillate with a predetermined oscillation waveform since the start of operation of an oscillator. This invention is a method for operating a continuous casting machine, the method comprising: withdrawing a slab from a mold while vertically oscillating the mold with an oscillation waveform represented by the following formula (1) by selecting a value of according to a value of b so that the following formula (1) satisfies r(0)=0:
r(t)=(S/2){sin(t+)+b cos 2(t+)+b}(1)
where r(t): displacement of the mold (mm), S: vibration stroke of the mold S (mm), : angular velocity (=2f) (rad/s), f: oscillation frequency of the mold (Hz), t: time(s), : initial phase (), and b: non-sine coefficient (0<b0.25).
DIE FOR A CONTINUOUS CASTING INSTALLATION
A die (for a continuous casting installation) that includes a movably mounted frame having a first subframe and a second subframe; a first broad-side insert which is positioned on the first subframe; and a second broad-side insert which is positioned on the second subframe. Narrow sides each having a narrow-side copper plate and abuting the two broad-side inserts are positioned between the two broad-side inserts. The die also has: a clamping device which is designed to exert, on the subframes, a clamping force that acts between the subframes; and an oscillation drive which is designed to make the frame oscillate in and counter to a horizontal width direction (H) relative to the narrow sides. A spring band assembly which guides the subframes is positioned on each subframe on sides which are opposite one another in the width direction (H).
CONTROL DEVICE FOR OSCILLATING TABLE
A control device (1) for an oscillating table (6), comprising:a closed and pressurized hydraulic circuit (20),a hydraulic actuator (21) connected to said hydraulic circuit (20) and adapted to be connected to the mobile part of the oscillating table (6) to adjust the position thereof, in which said hydraulic actuator (21) is a double-acting cylinder having a first chamber (21a) and a second chamber (21b) delimited from each other by a sliding piston (22) rigidly connected to a first rod (31a) which is rigidly restrainable to said mobile part, in which said hydraulic circuit (20) comprises at least one reversible hydraulic pump (9) directly connected to at least one of said first chamber (21a) and second chamber (21b).