STRAIGHTENING-DRAWING DEVICE Russian patent published in 2001 - IPC

FIELD: metallurgical engineering. SUBSTANCE: device may be used in billet continuous-casting machines. Straightening-drawing device has two rows of operating rollers positioned on side of upper and lower edges of billet. Operating rollers of lower row are driving ones with rigid kinematic coupling between them. Peripheral velocity of bodies of lower-row operating rollers decreases from roller to roller successively in direction of cast billet motion. Limiting value of relation of the first roller peripheral velocity to peripheral velocity of the last lower-row roller is equal to relation value of external radius R1 of cast billet to internal radius R2 up to its straightening when neutral axis of straightening is shifted to upper edge of biller, and stretching stresses are excluded completely. EFFECT: enhanced efficiency and reduced dimensions of machine. 2 cl, 1 dwg