FIELD: metallurgy.
SUBSTANCE: doping is performed with dump slag of silicothermic fusion of refined manganese alloys containing the following components, wt %: 18-22 MnO, 0.003-0.005 P, 26-29 SiO2, 43-46 CaO, 2-4 Al2O3, 2-4 MgO, 0.1-0.2 FeO, 0.1-0.2% S, which is charged to the ladle bottom in the quantity determined with the required content of manganese in cast iron.
EFFECT: invention allows reducing specific consumption of manganese-containing raw material due to using dump slags of silicothermic fusion of refined manganese alloys, for example metal manganese, medium- and low-carbon ferromanganese.
1 ex, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| CHARGE FOR HIGH-CARBON FERROMANGANESE SMELTING | 2011 |
|
RU2456363C1 |
| COMPOSITION OF ORE PORTION OF CHARGE FOR SMELTING PIG IRON IN BLAST FURNACE | 2018 |
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| PROCESS OF PRODUCTION OF ALLOYING COMPOSITION BY METHOD OF ALUMINOTHERMY | 1998 |
|
RU2157858C2 |
| PROCEDURE FOR BLAST MELTING TITANIUM-MAGNETITE RAW MATERIAL | 2008 |
|
RU2385352C2 |
| METHOD OF SMELTING LOW-PHOSPHORUS MANGANESE SLAG TO OBTAIN COMMERCIAL LOW-PHOSPHORUS CARBONIC FERROMANGANESE | 2018 |
|
RU2711994C1 |
| METHOD OF PREPARING FERROMANGANESE | 1999 |
|
RU2148102C1 |
| METHOD FOR OBTAINING MOLTEN STEEL WITH MANGANESE CONTENT OF UP TO 30% | 2008 |
|
RU2476604C2 |
| METHOD OF MELTING STEEL IN CONVERTER | 2002 |
|
RU2228366C1 |
| METHOD FOR MELTING MANGANESE-CONTAINING STEEL | 2001 |
|
RU2204612C1 |
| METHOD OF PRODUCING MANGANESE-CONTAINING STEEL | 0 |
|
SU763475A1 |
