BLOOMS, SLABS AND THIN SLABS CONTINUOUS CASTING METHOD Russian patent published in 2006 - IPC B22D11/12 

FIELD: metallurgy, namely continuous casting of blooms, slabs and thin slabs.

SUBSTANCE: thickness of billet 5 when his envelope 8 is being generated is lowered due to cone installation at least of one of sections (2.1 - 2.n) of linear guide in light squeezing zone SR approaching lower end of liquid phase. In region of melt core 7 of billet between mold 1 and zone SR, thickness of billet 5 is lowered at least by means of one roller pair 4,4'. Several roller pairs 4,4' are mounted mutually close in region of melt core 7 of billet 5 and it provides possibility for flexible matching of casting process and casting speed. Narrowing of thickness of billet 5 with melt core 7 is controlled in such a way that regardless of steel kind, intensity of cooling jet and casting speed, position of lower end 9 of liquid phase in zone SR is sustained practically fixed.

EFFECT: possibility for receiving stable good structure of billets in wide range of casting speeds at small expenses.

5 cl, 1 dwg