CENTRIFUGAL VERTICAL MACHINE Russian patent published in 1996 - IPC

FIELD: roll casting. SUBSTANCE: centrifugal vertical machine has frame, drive rotor, casting mold mounted on rotor, system of supporting rolls mounted in inclined position around perimeter of conical rotor race on bearings. Machine is further provided with vertical guides fixed on frame and adapted to receive supporting roll casings, which are spring-loaded with respect to frame, and spring-loaded centering rollers mounted in horizontal position along perimeter of casting mold bottom part. Springs have variable rigidity. It allows rotor oscillations to be reduced during starting, when rotor is under the action of resonant vibrational frequency. EFFECT: increased capacity and improved quality of ingots by reduced unbalance and decreased dynamic loadings.