RU2013110137A - METHOD FOR REDUCING RESIDUAL STRESSES IN WELDED CONNECTIONS - Google Patents
METHOD FOR REDUCING RESIDUAL STRESSES IN WELDED CONNECTIONS Download PDFInfo
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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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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.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2013110137/02A RU2533403C2 (en) | 2013-03-06 | 2013-03-06 | Method for electrophysical processing of welded joints in metal structures |
Applications Claiming Priority (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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RU2013110137A true RU2013110137A (en) | 2014-09-20 |
RU2533403C2 RU2533403C2 (en) | 2014-11-20 |
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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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Cited By (1)
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)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
CA2537506C (en) * | 2003-09-03 | 2009-12-15 | 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 |
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- 2013-03-06 RU RU2013110137/02A patent/RU2533403C2/en active
Cited By (2)
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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RU2533403C2 (en) | 2014-11-20 |
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