METHOD FOR PROCESSING CHIPS OF REFRACTORY METALS AND ALLOYS OF TITANIUM SUBGROUP Russian patent published in 2004 - IPC

Abstract RU 2238171 C1

FIELD: metallurgy of titanium subgroup refractory metals, possibly systems for processing chips of refractory metals and alloys.

SUBSTANCE: method comprises steps of preliminarily degreasing chips in aqueous solution of washing composition with concentration 0.015 - 0.020 kg/l at 60 - 80є C for 5 -15 min; washing chips in hot water at temperature 40 - 60є C at least for 3 min; washing chips in cold water at least for 3 min; then drying and disintegrating chips; making briquettes and remelting briquettes to ingot; after remelting, processing ingot to chips and performing iodide refinement.

EFFECT: enhanced quality of metal due to lowered content of carbon.

2 cl, 1 tbl

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RU 2 238 171 C1

Authors

Antipov V.V.

Beljaev A.L.

Kodintsev V.V.

Moiseev V.G.

Morenko O.G.

Pogadaev V.A.

Dates

2004-10-20—Published

2003-01-04—Filed