IRON POWDER HEAT TREATMENT METHOD Russian patent published in 2002 - IPC

Abstract RU 2179498 C1

FIELD: ferrous metallurgy. SUBSTANCE: invention provides method for heat treatment of iron powder resulting from compressed air-mediated atomization of cast iron melt including decarburizing and subsequent reductive annealing, the former being conducted under argon containing no more than 0.01 vol % nitrogen. In this method, temperature of decarburizing annealing is reduced from 950 C to 900 C and duration of this procedure is shortened by 15-20%. EFFECT: facilitated procedure and improved quality of reduced powder. 3 dwg, 3 tbl

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RU 2 179 498 C1

Authors

Bunakov O.D.

Sokolova E.A.

Dates

2002-02-20—Published

2001-01-09—Filed