FIELD: metallurgy, namely production of composite materials.
SUBSTANCE: method comprises steps of pouring into crystallization vessel melt being base of composition, for example melt aluminum; immersing piston into melt and placing it at distance from vessel bottom equal to three radiuses of said piston for providing annular gap between vessel and piston equal to (0.005 - 0.03)RI where RI - inner radius of crystallization vessel, m. Melt level over upper plane of piston is equal to (2 - 8)δ (R0 /RI)2 where δ - oscillation amplitude, m; R 0 - piston radius, m. Vessel is subjected to harmonic oscillations in vertical plane at frequency 16 - 160 Hz and amplitude determined according to formula δ = 1500η/(R0 2 μ ρ) where η - melt viscosity, Pa x s; μ - oscillation frequency, Hz; ρ - melt density, kg/m3.
EFFECT: enhanced efficiency of method, improved quality of alloy due to high degree of uniformity and degassing, fine structure.
1 tbl
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RU2298590C2 |
| MANUFACTURE METHOD OF COMPOSITE ALLOYS AND PLANT FOR ITS IMPLEMENTATION | 2015 |
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RU2625375C2 |
| METHOD OF MODIFICATION OF ALUMINUM AND ITS ALLOYS | 2017 |
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RU2674553C1 |
| METHOD OF OUT-FURNACE REFINING OF METAL MELT | 1988 |
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RU1547323C |
| DEVICE FOR VIBRATION PULSE WORKING OF MELTED METAL | 1979 |
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| METHOD AND APPARATUS TO PRODUCE CRYSTAL HOLLOW PIECES | 1986 |
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RU2031984C1 |
| DEVICE FOR MIXING LIQUIDS AND POWDERS WITH LIQUID | 2016 |
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RU2625471C1 |
| METHOD AND DEVICE FOR PRODUCTION OF METAL BILLERS WITH GLOBULAR STRUCTURE | 2008 |
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RU2371279C1 |
| PISTON, INTERNAL COMBUSTION ENGINE, AND VEHICLE USING THEM | 2018 |
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RU2777172C2 |
| PRODUCTION OF COPPER-BASED COMPOSITE FOR ELECTRIC CONTACTS | 2014 |
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