FIELD: metallurgy.
SUBSTANCE: invention relates to non-ferrous metallurgy. Particularly it relates to preparation technology of aluminium casting alloy, for instance silumins. It is implemented charge material melting, melt verheating till 990-1000°C, melt isolation at overheating temperature, melt cooling by preprepared solid metallic burden materials, refinement and melt casting. Charging of preprepared solid metallic burden materials is implemented fractional. The first portion is introduced at overheating temperature and is 8-10% of mass of basic stock. The second portion is introduced at the temperature 860-870°C and is 4-6% of mass of basic stock. The third portion is introduced at the temperature 750-760°C and is 4-6% of mass of basic stock.
EFFECT: increasing of mechanical properties of aluminium alloys.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF OBTAINING ALUMINIUM-SILICON ALLOYS | 2017 |
|
RU2652905C1 |
| METHOD OF PRODUCTION OF ALUMINUM-SILICON CASTING ALLOYS | 2006 |
|
RU2322522C1 |
| METHOD OF PREPARING CHARGE USED FOR OBTAINING ALUMINIUM ALLOYS | 2007 |
|
RU2345155C1 |
| METHOD OF REFINING MINOR WASTES AND NON-FERROUS METAL CHIPS | 1998 |
|
RU2159822C2 |
| METHOD FOR REMELTING SMALL-SIZE WASTE AND CHIPS OF NON-FERROUS METALS | 1999 |
|
RU2156816C1 |
| METHOD OF RECEIVING OF CASTABLE HEAT-RESISTANT ALLOY OR PRODUCTS OF ALLOY OF TYPE VKNS ON BASIS OF INTERMETALLIDE NiAl (VERSIONS) AND PRODUCTS RECEIVED BY THESE METHODS | 2007 |
|
RU2356965C1 |
| METHOD OF PROCESSING SCRAP OF ALUMINUM ALLOYS | 1993 |
|
RU2089630C1 |
| METHOD FOR MODIFICATION OF ALUMINIUM ALLOYS | 1992 |
|
RU2016112C1 |
| METHOD OF ALUMINOTHERMIC REFINING OF DUST-LIKE ZINC DROSS FRACTION | 1999 |
|
RU2150523C1 |
| COMPOSITE MATERIAL FOR METALLURGICAL CONVERSION AND A METHOD FOR ACHIEVEMENT THEREOF | 2002 |
|
RU2231558C2 |
