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2 788 290

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(51)

IPC

B23K9/173(2006-01-01)

B23K9/235(2006-01-01)

B23K35/362(2006-01-01)

(21) (22)

Application

2022117513, 2022-06-29

(24)

Start date

2022-06-29

(22)

Actual filing date

2022-06-29

(45)

Published

2023-01-17

(72)

Inventor

Krasikov Pavel PavlovichSavinov Aleksandr VasilevichPolesskii Oleg AleksandrovichChudin Artem AlekseevichLysak Vladimir IlichMurugov Dmitrii Aleksandrovich

(73)

Holder

Federalnoe Gosudarstvennoe Biudzhetnoe Obrazovatelnoe Uchrezh-Denie Vysshego Obrazovaniia Gosudarstvennyi Tekhnicheskii Universitet»

METHOD FOR CONSUMABLE ELECTRODE WELDING OF CARBON AND LOW ALLOY STRUCTURAL STEELS Russian patent published in 2023 - IPC B23K9/173 B23K9/235 B23K35/362

Abstract RU 2788290 C1

FIELD: welding.

SUBSTANCE: invention relates to a technology for welding longitudinal and circumferential seams of products made of carbon and low-alloy structural steels with a thickness of 4.0 to 30.0 mm. A flux paste is applied to the surfaces to be welded in the form of a coating of Y₂O₃ or CaO powder with a grain size of up to 39 μm, diluted in alcohol in a mass ratio of 1:3. A coating is obtained with an oxide deposition density of 0.045-0.055 g/cm² and a relative mass concentration of oxide in the weld pool melt zone equal to 1.8-2.2%. Welding is carried out in a mixture of protective gases, consisting of 82 vol.% argon and 18 vol.% carbon dioxide.

EFFECT: increasing the range of permissible deviations of the specified parameters of the welding process without deteriorating the mechanical properties of the welded joint for products with a thickness of 4-30 mm.

1 cl, 2 tbl

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RU 2 788 290 C1

Authors

Krasikov Pavel Pavlovich

Savinov Aleksandr Vasilevich

Polesskii Oleg Aleksandrovich

Chudin Artem Alekseevich

Lysak Vladimir Ilich

Murugov Dmitrii Aleksandrovich

Dates

2023-01-17—Published

2022-06-29—Filed