FIELD: metallurgy; methods of production of malleable cast iron for small castings or shots for cleaning castings. SUBSTANCE: method includes melting cast iron and cooling it in salt bath to temperature of 750-850 C, after which salt bath is heated to temperature of 950-1100 C and is held for 0.5-2 h; then, it is cooled down. Proposed method ensures production of cast iron with stable microstructure at improved mechanical properties. There is no need in precision monitoring of chemical composition of starting materials. EFFECT: improved quality of cast iron. 1 dwg, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCTION OF ALUMINIUM IRON WITH COMPACT INCLUSIONS OF GRAPHITE | 2012 |
|
RU2487950C1 |
| 0 |
|
SU1779266A3 | |
| METHOD OF HEAT TREATMENT OF UNALLOYED WHITE CAST IRON CASTINGS | 1999 |
|
RU2152443C1 |
| METHOD OF PRODUCTION OF INGOTS MADE OUT OF MOTTLED CAST IRON WITH AUSTENITIC-BAINITE STRUCTURE | 2003 |
|
RU2250268C1 |
| COMPLEX MODIFICATOR | 0 |
|
SU570656A1 |
| MALLEABLE PERLITE CAST IRON | 0 |
|
SU1137110A1 |
| METHOD FOR CAST IRON HEAT TREATMENT WITH SPHERICAL GRAPHITE | 2012 |
|
RU2504597C1 |
| PROCEDURE FOR PRODUCTION OF CAST IRON WITH SPHERICAL GRAPHITE AND AUSTENITE-FERRITE METAL MATRIX | 2009 |
|
RU2415949C2 |
| PROCEDURE FOR PRODUCTION OF CASTS OUT OF ALLOYED IRON | 2009 |
|
RU2395366C1 |
| MALLEABLE CAST IRON | 0 |
|
SU1260406A1 |
