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2 492 037

(13)

(51)

IPC

B23K28/02(2006-01-01)

B23K101/10(2006-01-01)

C21D9/50(2006-01-01)

(21) (22)

Application

2012123037/02, 2012-06-04

(24)

Start date

2012-06-04

(22)

Actual filing date

2012-06-04

(45)

Published

2013-09-10

(72)

Inventor

Bolobov Viktor IvanovichKhafizova Olesja FralitovnaFajrushin Ajrat MinnullovichJusupov Grigorij Adambaevich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Mineral'No-Syr'Evoj Universitet

METHOD OF DECREASING RESIDUAL STRAIN IN WELDED METAL JOINTS OF PIPELINES Russian patent published in 2013 - IPC B23K28/02 B23K101/10 C21D9/50

Abstract RU 2492037 C1

FIELD: process engineering.

SUBSTANCE: proposed method comprises applying the LF-vibrations by appropriate vibrators to in welding. Said LF vibrations are applied at frequency equal to intrinsic frequency of pipeline section with welded joint defined by define formula. Said frequency is calculated with allowance for pipeline section OD and ID, and spacing between the points of stiff attachment of pipeline section with welded joint.

EFFECT: higher quality of weld joint and metal near-seam layer.

2 dwg, 1 ex

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RU 2 492 037 C1

Authors

Bolobov Viktor Ivanovich

Khafizova Olesja Fralitovna

Fajrushin Ajrat Minnullovich

Jusupov Grigorij Adambaevich

Dates

2013-09-10—Published

2012-06-04—Filed