FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy and can be used for production of containers for transportation of used nuclear fuel and other radioactive wastes. Proposed method comprises smelting of iron, spheroidising it in teeming ladle and graphitising modification in the mould injection bowl. Said spheroidising is performed in teeming ladle reaction chamber wherein alloys Si-Ba, Ni-Mg and Si-Mg in amount of 1.8-2.2 wt % of initial iron weight are laid in layers and coated with the layer of iron-carbon chips. Modification is made by quick-dissolving moulded inserts and mix of foundry alloys in amount of 0.4-0.7 wt % composed of Si-Mg and Si-Ba at 1:1 ratio.
EFFECT: higher quality of microstructure and its isotropy, better mechanical properties.
3 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING THICK-WALL CASTINGS FROM CAST IRON WITH SPHERICAL GRAPHITE | 2011 |
|
RU2440214C1 |
| METHOD OF PRODUCING LARGE-SCALE CASTINGS OF HIGH-STRENGTH CAST IRON WITH SPHERICAL GRAPHITE | 2016 |
|
RU2637459C2 |
| CAST IRON MODIFICATION METHOD | 2016 |
|
RU2634103C1 |
| METHOD OF PRODUCING CAST IRON WITH GLOBULAR GRAPHITE | 0 |
|
SU1270173A1 |
| GRAPHITIZING MODIFICATION METHOD OF IRON | 2015 |
|
RU2620206C2 |
| METHOD FOR MANUFACTURING CASTINGS FROM HIGH STRENGTH SPHERICAL GRAPHITE IRON | 2023 |
|
RU2814095C1 |
| METHOD AND APPARATUS FOR PRODUCING HIGH-DUTY CAST IRON | 0 |
|
SU1379314A1 |
| PROCEDURE FOR PRODUCTION OF CASTS OUT OF ALLOYED IRON | 2009 |
|
RU2395366C1 |
| MAKING OF COLD-RESISTANT CAST IRON | 2012 |
|
RU2509159C1 |
| CASTING OF MULTIPLE-PLY BILLETS FOR HIGH-CAPACITY BODIES OF TRANSPORTATION CONTAINERS FROM HIGH-STRENGTH FERRITE AND AUSTENITE IRON WITH GLOBULAR GRAPHITE INTENDED FOR USED NUCLEAR FUEL TRANSPORTATION AND STORAGE | 2013 |
|
RU2531157C1 |
