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2 636 777

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(51)

IPC

C21D9/34(2006-01-01)

(21) (22)

Application

2016151520, 2016-12-27

(24)

Start date

2016-12-27

(22)

Actual filing date

2016-12-27

(45)

Published

2017-11-28

(72)

Inventor

Savushkin Roman AleksandrovichKyakk Kirill ValterovichBezobrazov Yurij AlekseevichBrojtman Oleg ArkadevichKabak Kirill MikhajlovichPerkunov Vyacheslav Evgenevich

(73)

Holder

Rejl Ajpi Ltd

METHOD FOR HEAT TREATMENT OF RAILWAY WHEELS Russian patent published in 2017 - IPC C21D9/34

Abstract RU 2636777 C1

FIELD: metallurgy.

SUBSTANCE: railway wheel is heated to the austenitizing temperature, immersed in the quench tank to a depth up to the starting point of rim transition into the disc, and cooled while the railway wheel is rotated simultaneously, then tempering is carried out at 450-550°C. The hardening medium temperature in the tank is 15-30°C, hardening process lasts for 100-250 seconds, and the wheel is rotated with frequency of 90-150 rev/min.

EFFECT: improved mechanical and performance properties.

5 cl, 2 dwg

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RU 2 636 777 C1

Authors

Savushkin Roman Aleksandrovich

Kyakk Kirill Valterovich

Bezobrazov Yurij Alekseevich

Brojtman Oleg Arkadevich

Kabak Kirill Mikhajlovich

Perkunov Vyacheslav Evgenevich

Dates

2017-11-28—Published

2016-12-27—Filed