FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy, in particular to the foundry production of large steel castings. The method includes natural convection mixing of modifier based on vanadium nitride and melt. As a modifier based on vanadium nitride, nanodispersed vanadium nitride powder clad with nickel is used, which is applied by spraying onto the inner surface of a casting mold made by the alpha-set process in an amount of 0.025–0.06 wt.% of the total mass of the melt poured into the mold.
EFFECT: invention provides improvement of mechanical properties by using an effective modifier of simple composition.
1 cl, 1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| STRUCTURE LOW ALLOYED CAST STEEL | 2009 |
|
RU2414523C2 |
| STEEL MODIFICATION METHOD | 2022 |
|
RU2781940C1 |
| WIRE WITH FILLER FOR OUT-OF-FURNACE TREATMENT OF METALLURGICAL MELTS | 2019 |
|
RU2723863C1 |
| HIGH-NITROGEN NONMAGNETIC CORROSION-RESISTANT STEEL | 2011 |
|
RU2451765C1 |
| HIGH-STRENGTH NONMAGNETIC CORROSION-RESISTANT STEEL | 2018 |
|
RU2683173C1 |
| METHOD OF MODIFYING HEAT-RESISTANT ALLOYS AND HIGH-ALLOY STEELS | 2017 |
|
RU2701978C2 |
| METHOD FOR LADLE MODIFICATION OF CAST IRON AND STEELS | 2017 |
|
RU2652932C1 |
| SPARINGLY ALLOYED COLD-RESISTANT HIGH-STRENGTH STEEL | 2020 |
|
RU2746599C1 |
| 0 |
|
SU435291A1 | |
| COLD-RESISTANT HIGH-STRENGTH STEEL | 2020 |
|
RU2746598C1 |
