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2 625 154

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(51)

IPC

B22F1/00(2006-01-01)

C22C33/02(2006-01-01)

(21) (22)

Application

2015153097, 2015-12-10

(24)

Start date

2015-12-10

(22)

Actual filing date

2015-12-10

(45)

Published

2017-07-11

(72)

Inventor

Arzhatkina Oksana AlekseevnaTokareva Olesya VladimirovnaKovaleva Irina Vladimirovna

(73)

Holder

Aktsionernoe Obshchestvo Nauchno-Issledovatelskij Institut Khimicheskoj Tekhnologii"Gosudarstvennyj Nauchnyj Tsentr Rf, Aktsionernoe Obshchestvo Tsniitmash"

METHOD OF PRODUCTION OF STEEL POWDER WITH LOW OXYGEN CONTENT Russian patent published in 2017 - IPC B22F1/00 C22C33/02

Abstract RU 2625154 C2

FIELD: metallurgy.

SUBSTANCE: method involves heat treatment of the steel powder at a temperature of 900-1200°C in a hydrogen medium and cooling in an argon medium. Prior to heat treatment of steel powder at a temperature of 900-1200°C the steel powder is heated up to a temperature of 600-750°C in argon medium and held in carbon tetrachloride medium at a temperature of 600-750°C for 10-30 minutes. The heat treatment of the steel powder is carried out at a temperature of 900-1200°C in hydrogen medium for 40-60 minutes.

EFFECT: reduction of labour intensity and duration of the powder production process.

4 ex

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RU 2 625 154 C2

Authors

Arzhatkina Oksana Alekseevna

Tokareva Olesya Vladimirovna

Kovaleva Irina Vladimirovna

Dates

2017-07-11—Published

2015-12-10—Filed