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2 339 469

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IPC

B21B28/02(2006-01-01)

C21D9/38(2006-01-01)

B23P6/00(2006-01-01)

(21) (22)

Application

2006138561/02, 2006-10-31

(24)

Start date

2006-10-31

(22)

Actual filing date

2006-10-31

(45)

Published

2008-11-27

(72)

Inventor

Kirichkov Anatolij AleksandrovichStakanchikov Vladimir VladimirovichZudov Aleksandr FedorovichPoluehktov Aleksandr Adol'FovichKorotkov Vladimir AleksandrovichMikhajlov Igor' DmitrievichTrajno Aleksandr IvanovichTjapaev Oleg Vjacheslavovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

METHOD FOR HARDENING OF STEEL ROLLER FOR RAIL AND STRUCTURAL MILL Russian patent published in 2008 - IPC B21B28/02 C21D9/38 B23P6/00

Abstract RU 2339469 C2

FIELD: process flows; metallurgical engineering.

SUBSTANCE: method includes roller machining, heating for weld deposition at rate 50-100°C/hr to temperature from 250°C to 300°C, arc-jet weld deposition at electric current density 40-45A/mm² with weld deposition rate from 25 m/hr to 30 m/hr and tempering for 1.5-2 hours at temperature 300-400°C.

EFFECT: improved resistance and performance of roller.

1 tbl, 1 ex

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RU 2 339 469 C2

Authors

Kirichkov Anatolij Aleksandrovich

Stakanchikov Vladimir Vladimirovich

Zudov Aleksandr Fedorovich

Poluehktov Aleksandr Adol'Fovich

Korotkov Vladimir Aleksandrovich

Mikhajlov Igor' Dmitrievich

Trajno Aleksandr Ivanovich

Tjapaev Oleg Vjacheslavovich

Dates

2008-11-27—Published

2006-10-31—Filed