FIELD: metallurgy, possibly improvement of properties of gray iron castings.
SUBSTANCE: method providing decreased volume content of graphite, disintegration of graphite impurities and their uniform distribution along cross section of castings comprises steps of heating and cooling gray cast iron in each cycle while cast iron is heated in each cycle till 980 - 1020°C and further it is cooled in water. Number of cycles is equal to 2 - 4.
EFFECT: decreased volume content of graphite, disintegration of graphite inclusions and their uniform distribution along cross section of castings.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PERIODIC HEAT TREATMENT OF CAST IRON | 2006 |
|
RU2322516C2 |
| METHOD OF IRON THERMOCYCLIC TREATMENT | 1998 |
|
RU2130084C1 |
| METHOD OF THERMO-CYCLIC PROCESSING OF IRON | 2008 |
|
RU2370548C1 |
| METHOD OF THERMOCYCLIC TREATMENT OF WHITE CAST IRON | 2008 |
|
RU2368671C1 |
| METHOD OF TEMPERING PARTS FROM LOW-CARBON BORON-CONTAINING STEEL | 2018 |
|
RU2690386C1 |
| METHOD OF THERMAL TREATMENT OF LARGE SIZE SLABS OUT OF GRAY PEARLITIC IRON | 2002 |
|
RU2230799C2 |
| METHOD FOR TEMPERATURE CYCLING OF MULTIPHASE STRAINED IRON-BASED ALLOYS | 2003 |
|
RU2241768C1 |
| METHOD OF THERMOCYCLIC TREATMENT OF WHITE CAST IRON | 0 |
|
SU863675A1 |
| METHOD FOR TREATING CASTINGS AND STRUCTURES FROM IRON-CARBON ALLOYS | 0 |
|
SU1301850A1 |
| MANUFACTURING METHOD FOR ESPECIALLY PURE LOW-CARBON FERROCHROME AND CHROME | 2010 |
|
RU2439187C2 |
