METHOD OF CONTINUOUS CASTING OF INGOT SLABS Russian patent published in 1995 - IPC

FIELD: metallurgy. SUBSTANCE: method of continuous casting of ingot slabs in a funnel-shaped mold comprises steps of changing an angle α of inclination of narrow working walls relative to a lengthwise axis of the mold according to relation tga=[B b D T (S-H)]/L, where B a width of an ingot at an outlet of the mold, mm; B-linear shrinkage factor of a metal, being cast, 1/C; D T- temperature drop of a surface of the ingot along length of the mold, C; S length of an arc of the funnel-shaped portion of a wide wall in an upper end of the mold, mm; H- length of a chord of the funnel-shaped portion of the wide wall in the upper end of the mold, mm; L length of the mold, mm. Mounting of narrow working walls of the mold relative to a lengthwise axis of the mold is being performed by rotation of these walls relative to the lower end of the mold at B=const. EFFECT: enhanced quality of ingot slabs. 1 cl, 3 dwg, 1 tbl