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2 483 120

(13)

(51)

IPC

C21D8/00(2006-01-01)

C21D9/22(2006-01-01)

C21D7/13(2006-01-01)

(21) (22)

Application

2012121023/02, 2012-05-22

(24)

Start date

2012-05-22

(22)

Actual filing date

2012-05-22

(45)

Published

2013-05-27

(72)

Inventor

Barchukov Dmitrij Anatol'EvichZubkov Nikolaj SemenovichLavrent'Ev Aleksej Jur'EvichVodop'Janova Valentina Pavlovna

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Tekhnicheskij Universitet"

METHOD OF HARDENING BUILT-UP HIGH-SPEED STEEL Russian patent published in 2013 - IPC C21D8/00 C21D9/22 C21D7/13

Abstract RU 2483120 C1

FIELD: metallurgy.

SUBSTANCE: proposed method comprises built-up steel surface forming, cooling and tempering. Note here that said surface forming is conducted during cooling after building up at (Mm+80)°C to 60°C, where Mm is martensitic transformation temperature of built-up high-speed steel. Single tempering is performed at 520-540°C and cured for 20-40 min.

EFFECT: higher hardness.

1 tbl, 2 ex

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RU 2 483 120 C1

Authors

Barchukov Dmitrij Anatol'Evich

Zubkov Nikolaj Semenovich

Lavrent'Ev Aleksej Jur'Evich

Vodop'Janova Valentina Pavlovna

Dates

2013-05-27—Published

2012-05-22—Filed