FIELD: process engineering.
SUBSTANCE: invention relates to metal forming, namely, to producing housings of containers intended for storage and transportation of waste nuclear fuel and other radioactive wastes. Proposed method comprises iron smelting in two furnaces, spheroidising liquid iron in teeming ladle. Iron is filled in charging ladle. Mould consists of outer lateral iron mould, top and bottom half-moulds and central cooled core. Iron is modified in charging ladle by the mix of microcrystalline rich alloys making 0.21-0.6%. Modifying mix consists of alloys Si-Mg, Si-Ba and Si-REM taken in the following ratio: 1:1:(0.5…1.0). Iron is charged into mould cavity is carried out through all feeders at a time after homogenising for 1…5 minutes.
EFFECT: eliminating casting defects, higher isotropism of metal properties over casting section.
3 cl, 1 dwg
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Authors
Dates
2012-01-20—Published
2011-01-11—Filed