METHOD OF CONTINUOUS CASTING OF INGOT SLABS Russian patent published in 1996 - IPC

FIELD: metallurgy. SUBSTANCE: method comprises steps of feeding metal into a gap between a driven drum, lateral rims and an endless belt, embracing the rims, formation of an ingot in a radial direction between the drum, the belt and the lateral rims; reduction of the ingot in a liquid-solid state by motion of the drum; drawing the ingot with variable speed; deforming the ingot for its unbending from a radial position to horizontal one with use of rollers, cooling the belt on a radial portion of formation of the ingot by water, being sprayed from jets; upon continuous casting process changing specific flowrate values of water from maximum value on a metal meniscus up to its minimum value at an outlet of the ingot from the gap between the belt and the drum according to a relation q=(2-8) + (10-20) L = πRα/180 = const where q-current value of water flowrate, m.cubic/m, square. h; L = α - length of the radial portion of the ingot formation, m; 0 ≅ α ≅ 180^° - an angle of a sector of a radial portion of the ingot formation, degrees, l = πRγ/180; 0 ≅ l ≅ → - a current length of the ingot formation on the radial portion γ, 0 ≅ γ ≅ α, 90^°, m; m³/m² h - a current value of an angle of a sector of the radial ingot formation, degree m³/m² h; 90 - angle; (2-8) - a value of specific water flowrates at outlet of the ingot from the gap between the belt and the drum, m cubic/m square.h; (10-20) - an assumed empirical value of water specific flowrate in the zone of the metal meniscus, m cubic/m square.h. EFFECT: enhanced quality of ingot slabs, increased efficiency of the casting process. 1 cl, 2 dwg, 2 tbl