FIELD: metallurgy.
SUBSTANCE: method involves loading of metal charge to crystalliser and its melting with electron beam or plasma by scanning its surface so that molten metal is formed and an ingot is obtained. Either non-pressed metal charge or metal charge pressed into a briquette is used; it is re-molten by means of two-sided remelting process; at that, when briquetted metal charge is used, melting of one side is performed due to alternate movement of heating zone from one side of square to its opposite side, and when non-pressed metal charge is used, melting of one side is performed due to constant movement of heating zone from the centre along square spiral to crystalliser perimetre. At that, melting of one side is performed to the depth of larger half from height of the produced ingot; when melting process is completed on one side, the obtained ingot is turned and laid with its molten part at crystalliser bottom, and then, melting of the other half is repeated as per the same sequence according to which the melting of the first half was performed.
EFFECT: invention allows reducing power consumption, manufacturing cycle and metal weight during melting process.
2 cl, 2 dwg
