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2 641 586

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(51)

IPC

B23K11/04(2006-01-01)

B23K101/26(2006-01-01)

C21D9/50(2006-01-01)

C21D9/04(2006-01-01)

(21) (22)

Application

2016148124, 2016-12-07

(24)

Start date

2016-12-07

(22)

Actual filing date

2016-12-07

(45)

Published

2018-01-18

(72)

Inventor

Protopopov Evgenij ValentinovichKozyrev Nikolaj AnatolevichShevchenko Roman AlekseevichKryukov Roman EvgenevichFejler Sergej VladimirovichUsoltsev Aleksandr Aleksandrovich

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Gosudarstvennyj Industrialnyj Universitet"

METHOD OF CONTACT BUTT WELDING OF RAILS Russian patent published in 2018 - IPC B23K11/04 B23K101/26 C21D9/50 C21D9/04

Abstract RU 2641586 C1

FIELD: transportation.

SUBSTANCE: after preliminary machining, heating the rail ends to be welded and settling are carried out. After settling, an exposure of 5÷15 seconds is carried out, then alternating electric current 2÷4 is passed through the welded joint in pulses with the duration of 0.5÷220 seconds at the intervals of 10÷40 seconds at the current density of 2÷40 A/mm².

EFFECT: required microstructure and mechanical properties of the welded joint without additional heat treatment, excluding the defects in the weld seam and the weld zone, reducing the duration of the rail joining process.

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RU 2 641 586 C1

Authors

Protopopov Evgenij Valentinovich

Kozyrev Nikolaj Anatolevich

Shevchenko Roman Alekseevich

Kryukov Roman Evgenevich

Fejler Sergej Vladimirovich

Usoltsev Aleksandr Aleksandrovich

Dates

2018-01-18—Published

2016-12-07—Filed