METHOD FOR INCREASING THE SPHERICITY OF PARTICLES OF THE POWDER OF CORROSION-RESISTANT STEEL PRODUCED BY SPRAYING THE MELT WITH WATER (VARIANTS) Russian patent published in 2022 - IPC B22F9/08 B01J2/02 B22F1/65 

Abstract RU 2780822 C1

FIELD: powder metallurgy.

SUBSTANCE: invention relates to powder metallurgy, in particular, to methods for producing spherical particles of a powder of corrosion-resistant steel. Invention can be used for manufacturing products of the automotive or aviation industry by injection or additive moulding. The melt of corrosion-resistant steel of a set composition is sprayed with water jets in the spraying chamber at a specific water consumption Qwater/Qmetal=0.5 to 1.0 l/kg. Alternatively, the melt is additionally alloyed with boron in an amount of 0.5 to 2.0% wt. prior to spraying. The resulting powder is collected and dried.

EFFECT: production of a powder with a spherical or near-spherical particle shape.

2 cl, 2 dwg, 1 ex

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RU 2 780 822 C1

Authors

Rozanov Sergej Dmitrievich

Manegin Sergej Yurevich

Gulyaev Igor Alekseevich

Mezhevov Andrej Vladimirovich

Krymov Evgenij Aleksandrovich

Dates

2022-10-04Published

2021-10-27Filed