PRODUCTION OF THIN-WALL CASTS FROM IRON ALLOYED WITH ALUMINIUM Russian patent published in 2014 - IPC B22D27/00 

FIELD: process engineering.

SUBSTANCE: invention relates to metallurgy. Pellets of thermite mix including minced aluminium additives with coat ply containing calcined iron oxide is placed on ladle bottom prior to filling iron melt into ladle. Not over one third of pellets are located nearby ladle edge, one third of pellets are arranged at maximum spacing from said edge and one third is arranged at maximum spacing from the ladle. Diameter of pellets located nearby ladle edge makes less than 50% of diameter of pellets located at ladle centre while that of pellets spaced from said edge is four times and more larger than diameter of pellets at ladle centre.

EFFECT: higher quality of casts.

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