FIELD: metallurgy; may be used for improvement of properties of pig iron castings by heat treatment. SUBSTANCE: method includes combined blowing of pig iron melt with nitrogen and steam for 5-20 min. EFFECT: reduced volume fraction of graphite segregations and their reduction in size. 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF GRAY IRON INOCULATION | 1998 |
|
RU2135599C1 |
| METHOD OF CAST IRON INOCULATION | 1998 |
|
RU2135600C1 |
| METHOD OF IRON THERMOCYCLIC TREATMENT | 1998 |
|
RU2130084C1 |
| CAST IRON | 1998 |
|
RU2130089C1 |
| METHOD OF PIG IRON PREPARATION | 1998 |
|
RU2130496C1 |
| GRAY IRON MODIFYING METHOD | 1999 |
|
RU2151198C1 |
| CAST IRON MODIFICATION METHOD | 1999 |
|
RU2162109C1 |
| METHOD OF PERIODICALLY HEAT TREATMENT CAST IRON | 2006 |
|
RU2322515C2 |
| METHOD FOR PERIODIC HEAT TREATMENT OF CAST IRON | 2006 |
|
RU2322516C2 |
| METHOD OF MODIFICATION OF ALUMINUM AND ITS ALLOYS | 1998 |
|
RU2136773C1 |
