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(19)

(11)

2 827 008

(13)

(51)

IPC

B21C37/08(2006-01-01)

B23K9/25(2006-01-01)

(21) (22)

Application

2023127780, 2023-10-27

(24)

Start date

2023-10-27

(22)

Actual filing date

2023-10-27

(45)

Published

2024-09-19

(72)

Inventor

Sharifullin Fail FakhrutdinovichSharifullin Rustem FailovichSharifullin Radik FailovichKalachev Maksim ViktorovichCherkasov Kirill Evgenevich

(73)

Holder

Individualnyi Predprinimatel Sharifullin Rustem Failovich

METHOD OF PRODUCING LONGITUDINAL ELECTRIC-WELDED PIPES Russian patent published in 2024 - IPC B21C37/08 B23K9/25

Abstract RU 2827008 C1

FIELD: welding.

SUBSTANCE: invention relates to production of longitudinal electric-welded pipes. A longitudinal process seam is formed on the formed tubular billet by means of welding with high-frequency currents. Pipe billet with formed process seam is calibrated. Continuously moving tubular billet is cut to measured lengths. Longitudinal seams are formed on inner and outer sides of pipes cut into measured lengths by means of electric arc welding under flux.

EFFECT: as a result, the weld impact strength is improved.

3 cl, 2 dwg

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RU 2 827 008 C1

Authors

Sharifullin Fail Fakhrutdinovich

Sharifullin Rustem Failovich

Sharifullin Radik Failovich

Kalachev Maksim Viktorovich

Cherkasov Kirill Evgenevich

Dates

2024-09-19—Published

2023-10-27—Filed