FIELD: metallurgy.
SUBSTANCE: invention relates to the field of powder metallurgy of alloyed steels used in the manufacture of corrosion-resistant and wear-resistant products using methods of traditional powder metallurgy, 3D printing, MIM-technologies. Method for obtaining steel powder includes chlorination of steel waste in molten potassium chloride, calciumthermic reduction of metal chlorides in the melt, cooling the melt, crushing, washing of the obtained steel powder and drying, wherein before reduction, one-time addition into the melt of alloying metals in the form of fluorine-containing salts is performed at a temperature of 780–800 °C and stirring the melt at rate of 300–360 rpm for 10–20 minutes under isothermal conditions.
EFFECT: invention is aimed at facilitating the production of steel powders with precise content of alloying components.
1 cl, 3 ex
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Authors
Dates
2018-08-15—Published
2016-12-16—Filed