| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention refers to aluminium alloy production and can be applied in aluminium-silicon alloy manufacturing with the use of crystalline silicon. Method involves simultaneous feed of silicon-containing component in the form of crystalline silicon and halogenide-containing flux to aluminium or aluminium alloy melt, where the surface of crystalline silicon is previously coated with halogenide-containing flux layer, and the reactant obtained is fed to aluminium or aluminium alloy melt. Melt temperature is maintained within the range defined by formula: TMe=Tmp Me+Dù(Tmp. flux:Tmp. Me)5, where: TMe is aluminium or aluminium alloy melt temperature, C; Tmp. Me is aluminium or aluminium alloy melting point, C; Tmp. flux is flux melting point, C; D=(5385) is a fitted coefficient for calculation of melt temperature range, with D=53 for bottom point of melt temperature range and D=85 for top point of melt temperature range. ^ EFFECT: possible processing of any crystalline silicon fractions in casting production, with reduced aluminium and silicon loss, reduced power and time consumption in alloy production, reduced gas and non-metallic inclusion content in alloy, obtainment of fine homogeneous structure in cast products, expanded range of fluxes used, reduced flux consumption and slag output. ^ 6 cl, 3 tbl, 3 ex |
