A method of producing composite alloys and installation for its implementation

摘要

FIELD: metallurgy.SUBSTANCE: manufacture method of the composite Al-Ti alloy, reinforced by the titaniumaluminides AlTi, involves melting and melt processing in the continuous mode in the melting vessel by means of the plunger-vibrator, immersed in the melt and performing the low-frequency oscillations in the range of 16-160 Hz with the amplitude δ, defined by the expression δ=1500η/(Rμρ), where η - dynamic viscosity of the melt, μ - frequency of oscillations, ρ - alloy density, R- the radius of the piston. Simultaneously with the vibrational oscillations, the melt is affected by the unipolar electromagnetic impulses with the frequency of at least 1000 Hz, the impulse duration not exceeding 1⋅and the power of at least 1 MW. The plant to obtain the composite alloy contains the melting pot and the piston vibrator, placed in the melting pot and connected through the rigid rod to the source of harmonic sound frequencies. The plant additionally contains the unipolar electromagnetic impulses generator with the frequency not less than 1000 Hz, the impulse duration not more than 1⋅and the power is not less than 1 MW, closed into the electric circuit on the piston vibrator, and the melting pot made of graphite. The piston is isolated from the rod by the dielectric gasket, the distance from the lower edge of the piston to the bottom of the melting pot is not more than 1.5 melting pot diameters and not less than the melting pot radius, and the clearance between the side walls of the piston vibrator and the melting pot is in the range of 0.025-0.1 of the melting pot radius. The alloy is characterized by submicrometer grain dimension at the uniform distribution of the composite components throughout the volume of the ingot.EFFECT: increase of the alloy performance characteristics.2 cl, 1 dwg, 1 tbl