ROLLER FOR CONTINUOUS CASTING MACHINE AND METHOD OF ITS MANUFACTURE Russian patent published in 2001 - IPC

FIELD: ferrous metallurgy, particularly, steel continuous casting. SUBSTANCE: roller has a cylindrical barrel with supporting trunnions and band with interference fit and comprised of cylindrical rings. Extreme cylindrical rings are fixed to prevent their axial displacement. A part of conjugated surfaces of the barrel and band cylindrical rings have riffles located along their generating lines. Riffles are made in the form of equilateral in cross-section triangles having profile height equaling rated value of clearance required for free installation of heated rings on barrel with formation of lock. Quantity and size of riffles in zone of their location are selected to ensure operation of roller with rated circular force acting on band ring in case of disappearance of interference fit in conjugated surfaces of the barrel and band ring. Method provides for manufacture of band from high-temperature corrosion-resistant alloys. To provide for formation of clearance, band cylindrical rings are heated up to rated temperature and fitted on barrel so that tops of riffles on barrel surface are conjugated with hollows of riffles on surface of band cylindrical rings. Band cylindrical rings are cooled down to room temperature to ensure interference fit over entire surface of conjugation and to form lock from riffles. Teeth of riffles may be formed by methods of plastic deformation. EFFECT: reduced weight of ready for use tool, increased operating reliability of roller, reduced labor input and cost of its manufacture; higher reliability of fixation of band cylindrical rings. 3 cl, 3 dwg, 1 ex