METHOD FOR PRODUCING IRON POWDER

METHOD FOR PRODUCING IRON POWDER

FIELD: powder metallurgy, namely production of iron powders by reduction of iron - containing raw material such as natural ores. ^ SUBSTANCE: method comprises steps of heating iron containing raw material at presence of solid reducing agent in non-mixing layers until 110-1200 C; soaking at such temp...

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Bibliographische Detailangaben
Hauptverfasser: SEKACHEV M.A, AKIMENKO V.B, GULJAEV I.A, KALASHNIKOVA O.JU
Format: Patent
Sprache:eng ; rus
Schlagworte:
CASTING
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:FIELD: powder metallurgy, namely production of iron powders by reduction of iron - containing raw material such as natural ores. ^ SUBSTANCE: method comprises steps of heating iron containing raw material at presence of solid reducing agent in non-mixing layers until 110-1200 C; soaking at such temperature until formation of sponge iron; cooling it, breaking, screening, magnetically separating non-metallic inclusions; hydrogen annealing at 850-950C for 1.5 - 2 hours; disintegrating and sorting; using martite ore as iron-containing raw material; at breaking, dispersing, disintegrating and sorting additionally separating non-metallic inclusions by aspiration at speed of air flow 0.1 - 0.3 m/s. ^ EFFECT: simplified process for producing iron powder with improved quality. ^ 1 ex