METHOD FOR FORMATION OF SLAG BATH IN ELECTROSLAG REFINING OF CONSUMABLE ELECTRODE Russian patent published in 1995 - IPC

FIELD: metallurgy. SUBSTANCE: used in method is flux consisting of fractions different in size. Method includes introduction into mold of solid flux containing 40-90% of fractions sizing 5.0 mm and 10-60% of fractions sizing 10.0-80.0 mm and its melting. A distinctive characteristic of method is layer-by-layer introduction of flux in which, first, introduced into mold is flux with fractions sizing 0.1-5.0 mm and then fractions sizing 10.0-80.0 mm. EFFECT: improved quality of ingot bottom part, increased standard product yield and reduced manufacturing cost. 1 tbl