RU2006147323A - METHOD FOR REPAIR OF STRESS-CORROSION CRACKS ON PIPES OF MAIN GAS PIPELINES - Google Patents
METHOD FOR REPAIR OF STRESS-CORROSION CRACKS ON PIPES OF MAIN GAS PIPELINES Download PDFInfo
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- RU2006147323A RU2006147323A RU2006147323/02A RU2006147323A RU2006147323A RU 2006147323 A RU2006147323 A RU 2006147323A RU 2006147323/02 A RU2006147323/02 A RU 2006147323/02A RU 2006147323 A RU2006147323 A RU 2006147323A RU 2006147323 A RU2006147323 A RU 2006147323A
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- welding
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- hardening
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Abstract
Способ ремонта стресскоррозионных трещин на трубах магистральных газопроводов с применением сварки и упрочнения ультразвуковой ударной обработкой, отличающийся тем, что производят зачистку только поверхности трубы до чистого металла абразивным кругом, затем методом капиллярной дефектоскопии определяют границы трещин и неплавящимся вольфрамовым электродом осуществляют переплав трещин, начиная процесс в пределах от 10 до 15 мм от начала и конца трещины, образуя выемку с оплавленными краями любой протяженности, после этого осуществляют аргонодуговую сварку (заплавление) полученной выемки (мениска) по всей ее протяженности путем подачи сварочной проволоки, заваренную поверхность зачищают заподлицо с основным металлом, например шлифмашинками, и производят контроль качества переплава и заварки методом ультразвуковой дефектоскопии (УЗД), затем осуществляют упрочнение ультразвуковой ударной обработкой зачищенной поверхности.A method of repairing stress-corrosion cracks on pipes of main gas pipelines using welding and hardening by ultrasonic shock treatment, characterized in that they clean only the pipe surface to a clean metal with an abrasive wheel, then the boundaries of the cracks are determined by capillary defectoscopy and the cracks are remelted, starting the process in from 10 to 15 mm from the beginning and end of the crack, forming a recess with fused edges of any length, then argon-arc welding (melting) of the recess (meniscus) along its entire length by feeding the welding wire, the welded surface is flush with the base metal, for example, grinders, and the quality of remelting and welding is monitored by ultrasonic flaw detection (SPD), then hardening by ultrasonic impact treatment cleaned surface.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2006147323/02A RU2337803C2 (en) | 2006-12-25 | 2006-12-25 | Method for reparing gas pipelines with stress-corosion cracks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2006147323/02A RU2337803C2 (en) | 2006-12-25 | 2006-12-25 | Method for reparing gas pipelines with stress-corosion cracks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2006147323A true RU2006147323A (en) | 2008-07-10 |
| RU2337803C2 RU2337803C2 (en) | 2008-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2006147323/02A RU2337803C2 (en) | 2006-12-25 | 2006-12-25 | Method for reparing gas pipelines with stress-corosion cracks |
Country Status (1)
| Country | Link |
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| RU (1) | RU2337803C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799722A (en) * | 2022-04-14 | 2022-07-29 | 江苏海川石化工程技术有限公司 | Rapid repair method for local stress corrosion defect of pressure vessel |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2466843C1 (en) * | 2011-08-09 | 2012-11-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновский государственный технический университет" | Method of repairing fractures in metal structures |
| RU2599656C2 (en) * | 2015-01-12 | 2016-10-10 | Общество с ограниченной ответственностью "Малое инновационное предприятие "Энергосберегающие технологии" (ООО "МИП "Энергосберегающие технологии") | Method of reconditioning parts by facing |
| RU2639182C1 (en) * | 2017-01-31 | 2017-12-20 | Публичное акционерное общество "Челябинский трубопрокатный завод" (ПАО "ЧТПЗ") | Method of repair of longitudinal pipe weld, applied by laser welding |
| RU2656909C1 (en) * | 2017-07-04 | 2018-06-07 | Публичное акционерное общество "Челябинский трубопрокатный завод" (ПАО "ЧТПЗ") | Method of repair of longitudinal seam of pipe applied by method of laser welding |
| RU2668621C1 (en) * | 2017-08-15 | 2018-10-02 | Публичное акционерное общество "Челябинский трубопрокатный завод" (ПАО "ЧТПЗ") | Method of defect correction of welded seam of a formed pipe shell made with the use of laser |
| RU2668623C1 (en) * | 2017-08-15 | 2018-10-02 | Публичное акционерное общество "Челябинский трубопрокатный завод" (ПАО "ЧТПЗ") | Method of defect correction of welded seam of a formed pipe shell made with the use of laser |
| CN110948174A (en) * | 2019-11-26 | 2020-04-03 | 中国第一汽车股份有限公司 | Method for repairing casting defects of castings |
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2006
- 2006-12-25 RU RU2006147323/02A patent/RU2337803C2/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799722A (en) * | 2022-04-14 | 2022-07-29 | 江苏海川石化工程技术有限公司 | Rapid repair method for local stress corrosion defect of pressure vessel |
| CN114799722B (en) * | 2022-04-14 | 2023-07-21 | 江苏海川石化工程技术有限公司 | Quick repairing method for local stress corrosion defect of pressure vessel |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2337803C2 (en) | 2008-11-10 |
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