FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy. Proposed method comprises the analysis of initial carbon-containing stock components for fraction and chemical composition, proportioning, flushing with water flow, drying and grinding to 0.1…30.0 mm fraction. Ground composition is subjected to high specific pressure of up to 20 GPa and heated to 500…1500°C in reducing medium for 5…20 minutes. Then, smooth cooling sizing to fractions are performed. Then, heating is performed to 1800…2500°C along with holding and forced cooling at the rate of 1.5…3.0°C/min to the room temperatures to produce graphite nanostructures of 100 nm on carburiser particles to be packed in watertight container.
EFFECT: better carbon assimilation and uniform distribution of graphite phase in cast iron matrix, higher mechanical properties.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR OBTAINING NANOSTRUCTURED RECARBURISING AGENT FOR OUT-OF-FURNACE TREATMENT OF HIGH-STRENGTH CAST-IRON WITH BALL-SHAPED AND COMPACTED GRAPHITE | 2011 |
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| PRODUCTION METHOD OF HIGH-STRENGTH CAST-IRONS WITH BALL-SHAPED OR COMPACTED GRAPHITE BASED ON NANOSTRUCTURED RECARBURISING AGENT | 2011 |
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| CARBURISER | 2006 |
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| COMPOSITION FOR METAL CARBONISATION | 2006 |
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| METHOD OF DEOXIDATION, MODIFICATION AND MICROALLOYING OF STEEL WITH VANADIUM-CONTAINING MATERIALS | 1998 |
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| METHOD OF STEEL PRODUCTION IN ELECTRIC ARC FURNACE | 2015 |
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| METHOD OF IRON SMELTING IN ELECTRIC ARC FURNACES | 2023 |
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| PROCEDURE FOR MELTING IRON-CARBON ALLOYS IN INDUCTION FURNACES | 2007 |
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| CHARGE FOR PRODUCING SYNTHETIC CAST IRON | 0 |
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SU1752777A1 |
