RU2013110137A - METHOD FOR REDUCING RESIDUAL STRESSES IN WELDED CONNECTIONS - Google Patents

METHOD FOR REDUCING RESIDUAL STRESSES IN WELDED CONNECTIONS Download PDF

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RU2013110137A
RU2013110137A RU2013110137/02A RU2013110137A RU2013110137A RU 2013110137 A RU2013110137 A RU 2013110137A RU 2013110137/02 A RU2013110137/02 A RU 2013110137/02A RU 2013110137 A RU2013110137 A RU 2013110137A RU 2013110137 A RU2013110137 A RU 2013110137A
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Prior art keywords
weld
residual stresses
current pulses
passed
reducing
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RU2013110137/02A
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Russian (ru)
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RU2533403C2 (en
Inventor
Игорь Александрович Романцов
Владимир Арсентьевич Сокиров
Игорь Иванович Чудайкин
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Открытое акционерное общество "Челябинский трубопрокатный завод"
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Priority to RU2013110137/02A priority Critical patent/RU2533403C2/en
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Abstract

1. Способ снижения остаточных напряжений сварных соединений металлических конструкций, включающий электрофизическую обработку участков шва и зоны термического влияния, отличающийся тем, что в процессе выполнения сварки через нагретый электродуговой сваркой участок шва и зоны термического влияния пропускают знакопеременные импульсы электрического тока длительностью (2,0±0,5) с и паузой между импульсами 1-3 с.2. Способ снижения остаточных напряжений по п.1, отличающийся тем, что импульсы электрического тока пропускают перпендикулярно сварному шву.3. Способ снижения остаточных напряжений по п.1, отличающийся тем, что импульсы тока пропускают в зоне остывания шва, где температура металла меньше температуры точки Кюри на 50-100 градусов по шкале Цельсия.1. A method of reducing the residual stresses of welded joints of metal structures, including the electrophysical treatment of the weld sections and the heat-affected zone, characterized in that alternating electric current pulses of duration (2.0 ± 2) are passed through the heated weld portion of the weld and heat-affected zone during welding. 0.5) s and a pause between pulses 1-3 s. 2. A method for reducing residual stresses according to claim 1, characterized in that the electric current pulses are transmitted perpendicular to the weld. The method of reducing residual stresses according to claim 1, characterized in that the current pulses are passed in the weld cooling zone, where the metal temperature is 50-100 degrees Celsius below the Curie point temperature.

Claims (3)

1. Способ снижения остаточных напряжений сварных соединений металлических конструкций, включающий электрофизическую обработку участков шва и зоны термического влияния, отличающийся тем, что в процессе выполнения сварки через нагретый электродуговой сваркой участок шва и зоны термического влияния пропускают знакопеременные импульсы электрического тока длительностью (2,0±0,5) с и паузой между импульсами 1-3 с.1. A method of reducing the residual stresses of welded joints of metal structures, including the electrophysical treatment of the weld sections and the heat-affected zone, characterized in that alternating electric current pulses of duration (2.0 ± 2) are passed through the heated weld portion of the weld and heat-affected zone during welding. 0.5) s and a pause between pulses 1-3 s. 2. Способ снижения остаточных напряжений по п.1, отличающийся тем, что импульсы электрического тока пропускают перпендикулярно сварному шву.2. The method of reducing residual stresses according to claim 1, characterized in that the electric current pulses are passed perpendicular to the weld. 3. Способ снижения остаточных напряжений по п.1, отличающийся тем, что импульсы тока пропускают в зоне остывания шва, где температура металла меньше температуры точки Кюри на 50-100 градусов по шкале Цельсия.3. The method of reducing residual stresses according to claim 1, characterized in that the current pulses are passed in the weld cooling zone, where the metal temperature is 50-100 degrees Celsius below the Curie point temperature.
RU2013110137/02A 2013-03-06 2013-03-06 Method for electrophysical processing of welded joints in metal structures RU2533403C2 (en)

Priority Applications (1)

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RU2013110137/02A RU2533403C2 (en) 2013-03-06 2013-03-06 Method for electrophysical processing of welded joints in metal structures

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RU2013110137/02A RU2533403C2 (en) 2013-03-06 2013-03-06 Method for electrophysical processing of welded joints in metal structures

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RU2013110137A true RU2013110137A (en) 2014-09-20
RU2533403C2 RU2533403C2 (en) 2014-11-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115874130A (en) * 2022-11-24 2023-03-31 西南交通大学 High-current narrow-pulse auxiliary titanium-aluminum welded joint low-temperature stress slow release method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1301614A1 (en) * 1984-10-24 1987-04-07 Научно-исследовательский и проектно-конструкторский институт по проблемам развития Канско-Ачинского угольного бассейна Method of welding metals
SU1328393A1 (en) * 1985-04-10 1987-08-07 Научно-Исследовательский Институт Бетона И Железобетона Госстроя Ссср Method of local heat treatment of weld joints with flash
WO2005024071A1 (en) * 2003-09-03 2005-03-17 Fluor Technologies Corporation Post weld heat treatment for chemically stabilized austenitic stainless steel
EP1561827A1 (en) * 2004-02-06 2005-08-10 Alstom Technology Ltd Method of welding a ferritic steel comprising a post weld heat treatment and cold working on the weld

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115874130A (en) * 2022-11-24 2023-03-31 西南交通大学 High-current narrow-pulse auxiliary titanium-aluminum welded joint low-temperature stress slow release method
CN115874130B (en) * 2022-11-24 2024-03-08 西南交通大学 Low-temperature stress slow-release method for high-current narrow-pulse auxiliary titanium-aluminum welding joint

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