METHOD FOR MAKING CONTINUOUSLY CAST BILLETS Russian patent published in 2000 - IPC

FIELD: metallurgical production, namely metal continuous casting. SUBSTANCE: method comprises steps of forming curvilinear surface of wide face in mold and then in secondary cooling zone acting upon solidified skin of double-phase ingot for straightening its surface in direction of protrusion of dividing roller; providing constant length of surface of wide face of ingot from time moment of forming ingot until making rectilinear surface of divided ingot and calculating it according to formula: L_kp= L_kp•(n+1)+2(L_pr+h_pp)•n, where L_pz- length of surface of wide face of divided billet, mm; n - number of dividing protrusions of dividing roller; L_pr- length of working portion of dividing roller, mm; h_pp- width of upper face of dividing roller, mm. EFFECT: possibility of making high quality ingot due to reduced cracking at local action upon skin of solidified ingot with lower degree of segregation processes, increased rate of metal casting. 3 dwg, 1 ex