SUPPORTING ROLLER OF SECONDARY COOLING ZONE OF SLAB MACHINE FOR CONTINUOUS CASTING OF SLABS

摘要

The invention relates to metallurgy, in particular to the machines continuous casting of metals in the preparation of workpieces of rectangular cross-section. The inventive device supports the workpiece zone secondary cooling roller cl - bovoy continuous casting machine comprises a monolithic body with a wear layer and a central (axial) passage for supplying coolant Thus for supplying coolant channel is formed a three-stage, the diameters of the stages are coupled by the relation: DDD. where 0, D, O - internal channel diameters respectively first, second and third stages, the stages dimensions satisfy the condition: I 038 B. RR / V, where I. - the length of the middle-stage, mm; B - the length of the roller barrel, mm; R - the radius of the first stage, mm; R - the radius of the second stage mm. Embodiments of the invention will eliminate the resilient deflection of the supporting rollers and (or) to establish the two-phase compression billet end in the liquid pool area and reduce bulging, peel biphasic solid ingot, which significantly improves the quality of continuity ryvnolityh blanks. 1 yl.