FIELD: process engineering.
SUBSTANCE: proposed method comprises pouring of metal melt into spinning cooled mould composed by vertical converter, heating it in oxidative or reducing medium with formation of light and heavy admixtures by chemical reaction in the melt. Centrifugal forces and gravity displace light admixtures to melt surface while heavy admixtures get to ingot periphery. Volatile admixtures do not escape from the mould owing to application of cooled shield arranged there above. After crystallisation of the metal major part on mould inner surface said ingot is turned over to discharge melt portion along with light admixtures. Heavy admixtures are removed from hardened ingot periphery. Mould inner cavity is shaped top cone converging upward to allow removal of ingot after turning over of the mould with ingot. This mould is spun by air or water flow fed to turbine blades. Note here that, at a tome, the mould and ingot are cooled.
EFFECT: more efficient removal of admixtures.
3 cl, 2 dwg
Authors
Dates
2014-07-27—Published
2010-10-28—Filed