METHOD OF PRODUCTION OF BLANKS FROM COPPER OR ITS ALLOYS Russian patent published in 2005 - IPC

FIELD: non-ferrous metallurgy; melting and molding of blanks from copper and its alloys; manufacture of coolers for blast furnaces, crystallizers and other large-sized equipment.

SUBSTANCE: proposed method is used for production of dense ingots free from inclusions at low level of gas saturation adequate for further conversion, good weldability and high heat conductance. Proposed method includes manufacture of consumable electrode from charge materials, electroslag remelting of this electrode, molding of ingot and its deformation; consumable electrode is made by melting the charge materials in 6- or 12-ton crucible in vacuum induction furnace; electroslag remelting is performed to crystallizer, 500-700 mm in diameter; electric mode of remelting is selected depending on diameter of crystallizer; seven seed crystals are placed on tray: one in center and six over periphery at crystallizer walls; electric contact on seed crystals is distributed as required; after deformation, blank is cooled in air.

EFFECT: enhanced efficiency.

5 cl, 1 tbl, 1 ex