RU2011122920A - METHOD OF ULTRASONIC PIPE CONTROL - Google Patents
METHOD OF ULTRASONIC PIPE CONTROL Download PDFInfo
- Publication number
- RU2011122920A RU2011122920A RU2011122920/28A RU2011122920A RU2011122920A RU 2011122920 A RU2011122920 A RU 2011122920A RU 2011122920/28 A RU2011122920/28 A RU 2011122920/28A RU 2011122920 A RU2011122920 A RU 2011122920A RU 2011122920 A RU2011122920 A RU 2011122920A
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- RU
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- Prior art keywords
- defect
- transducer
- product
- pulse
- ultrasonic vibrations
- Prior art date
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
1. Способ ультразвукового контроля труб, заключающийся в том, что устанавливают на поверхности изделия перемещающиеся вдоль образующей трубы два преобразователя, излучающих ультразвуковые колебания с задержкой по времени относительно друг друга, принимают каждым преобразователем отраженные от дефекта изделия эхо-импульсы, измеряют параметры принятых эхо-импульсов, сравнивают их с эталонным значением и по результатам сравнения судят о величине дефекта, отличающийся тем, что импульсы ультразвуковых колебаний вводят перпендикулярно образующей поверхности изделия, дополнительно регистрируют «обегающий» изделие импульс ультразвуковых колебаний, излучаемый одним преобразователем и принимаемый другим преобразователем, и по изменению амплитуды импульса корректируют значение амплитуды импульса, отраженного от дефекта, и, сравнивая его с эталонным значением судят о величине дефекта, после чего излучают дополнительный импульс в направлении, противоположном основному, принимают каждым преобразователем отраженные от дефекта изделия эхо-импульсы, сравнивают их с эталонным значением и по результатам сравнения судят о наличии дефектов в «мертвых зонах» каждого преобразователя, при этом преобразователи устанавливают друг относительно друга на расстоянии, не менее суммы длин «мертвых зон» каждого пребразователя в одном направлении.2. Способ по п.1, отличающийся тем, что задержку по времени излучения ультразвуковых колебаний одного преобразователя относительно другого определяют временем распространения импульса от максимально удаленного дефекта изделия.3. Способ по п.1, отличающийся тем, что в качестве ул1. The method of ultrasonic inspection of pipes, which consists in installing two transducers moving along the generatrix of the pipe, emitting ultrasonic vibrations with a time delay relative to each other, receiving echo pulses reflected from the product defect, measuring the parameters of the received echo pulses, compare them with the reference value and according to the results of comparison judge the magnitude of the defect, characterized in that the pulses of ultrasonic vibrations are introduced perpendicular to the developing surface of the product, an ultrasound oscillation pulse emitted by one transducer and received by another transducer is additionally recorded, and the amplitude of the pulse reflected from the defect is corrected by changing the amplitude of the pulse, and judging by the reference value, the value of the defect is judged, after which emit an additional impulse in the direction opposite to the main one, receive echo pulses reflected from the product defect by each transducer, compare them with the reference the value and according to the results of the comparison judge the presence of defects in the "dead zones" of each converter, while the converters are installed relative to each other at a distance of not less than the sum of the lengths of the "dead zones" of each converter in one direction. 2. The method according to claim 1, characterized in that the time delay of the emission of ultrasonic vibrations of one transducer relative to another is determined by the propagation time of the pulse from the maximum remote defect of the product. The method according to claim 1, characterized in that as
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2011122920/28A RU2486502C2 (en) | 2011-06-07 | 2011-06-07 | Method for ultrasonic examination of pipes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2011122920/28A RU2486502C2 (en) | 2011-06-07 | 2011-06-07 | Method for ultrasonic examination of pipes |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2011122920A true RU2011122920A (en) | 2012-12-20 |
RU2486502C2 RU2486502C2 (en) | 2013-06-27 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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RU2011122920/28A RU2486502C2 (en) | 2011-06-07 | 2011-06-07 | Method for ultrasonic examination of pipes |
Country Status (1)
Country | Link |
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RU (1) | RU2486502C2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013223083A1 (en) * | 2013-11-13 | 2015-05-13 | Sms Siemag Ag | Method and device for contactless checking of the condition of a metallurgical cast product |
RU2626307C1 (en) * | 2016-06-21 | 2017-07-25 | Федеральное государственное бюджетное учреждение науки Институт проблем управления им. В.А. Трапезникова Российской академии наук | Method for controlling pipe welds |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1408357A1 (en) * | 1986-07-28 | 1988-07-07 | Днепропетровский Трубопрокатный Завод Им.Ленина | Method of ultrasonic inspection of thin-wall pipes |
SU1727050A1 (en) * | 1990-02-26 | 1992-04-15 | Производственное объединение "Уралвагонзавод" | Method of ultrasound inspection of articles and device to implement it |
US5619423A (en) * | 1994-01-21 | 1997-04-08 | Scrantz; Leonard | System, method and apparatus for the ultrasonic inspection of liquid filled tubulars and vessels |
JP3165888B2 (en) * | 1996-12-19 | 2001-05-14 | 住友金属工業株式会社 | Ultrasonic flaw detection method and ultrasonic flaw detection apparatus |
JPH1194806A (en) * | 1997-09-22 | 1999-04-09 | Nkk Corp | Ultrasonic flaw detection method end surface or side face of steel material |
GB0121470D0 (en) * | 2001-09-05 | 2001-10-24 | Pii Ltd | Pipeline inspection pigs |
RU2246724C1 (en) * | 2003-08-25 | 2005-02-20 | Кубланов Владимир Семенович | Method of ultrasonic testing of material quality |
RU102810U1 (en) * | 2010-08-25 | 2011-03-10 | Общество с ограниченной ответственностью "Акустические Контрольные Системы" | PIPELINE ULTRASONIC DEFECTOSCOPY SYSTEM |
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2011
- 2011-06-07 RU RU2011122920/28A patent/RU2486502C2/en not_active IP Right Cessation
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Publication number | Publication date |
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RU2486502C2 (en) | 2013-06-27 |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20130608 |