MD2839C2 - Method of welds ultrasonic testing - Google Patents
Method of welds ultrasonic testingInfo
- Publication number
- MD2839C2 MD2839C2 MDA20040261A MD20040261A MD2839C2 MD 2839 C2 MD2839 C2 MD 2839C2 MD A20040261 A MDA20040261 A MD A20040261A MD 20040261 A MD20040261 A MD 20040261A MD 2839 C2 MD2839 C2 MD 2839C2
- Authority
- MD
- Moldova
- Prior art keywords
- testing
- transformers
- reception
- defect
- echo signals
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention refers to the field of nondestructive testing, namely to a process for welds ultrasonic testing.The process for welds ultrasonic testing consists in that one combined 1 and at least one reception 2 ultrasonic inclined piezotransformers are installed onto the surface of the tested article 3 so that the direction of radiation and reception thereof are intersecting in the controlled weld sector 4, 5. The radiation of the ultrasound pulses and reception of the echo signals is carried out by all the inclined transformers in each cycle time of the non-destructive testing instrument. The echo signals from the weld testing sector, received by all the transformers, are selected according to the time of receipt and the amplitudes thereof are registered. By comparing the amplitudes of received echo signals, corresponding to one of ultrasound pulse in each testing time, with the discarded sensitivity level prescribed separately for each echo signal, it is determined the defect presence, and the type thereof and direction is determined according to the number and location of the transformers having registered the echo signal received from the defect.The result of the invention consists in increasing the productivity of the automatized testing and the reliability of determining the revealed defect type and orientation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDA20040261A MD2839C2 (en) | 2004-11-05 | 2004-11-05 | Method of welds ultrasonic testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDA20040261A MD2839C2 (en) | 2004-11-05 | 2004-11-05 | Method of welds ultrasonic testing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD2839B1 MD2839B1 (en) | 2005-08-31 |
| MD2839C2 true MD2839C2 (en) | 2006-05-31 |
Family
ID=34859167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MDA20040261A MD2839C2 (en) | 2004-11-05 | 2004-11-05 | Method of welds ultrasonic testing |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD2839C2 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295375A (en) * | 1979-01-08 | 1981-10-20 | Voest-Alpine Aktiengesellschaft | Ultrasonic method of testing welded joints |
| SU1469440A1 (en) * | 1980-06-24 | 1989-03-30 | Всесоюзный Научно-Исследовательский Институт По Разработке Неразрушающих Методов И Средств Контроля Качества Материалов | Method of ultrasonic tests (and its versions) |
| EP0388470A1 (en) * | 1988-08-26 | 1990-09-26 | Moskovskoe Vysshee Tekhnicheskoe Uchilische Imeni N.E.Baumana | Method of controlling acoustic contact during ultrasonic flaw detection |
| SU1644022A1 (en) * | 1987-02-09 | 1991-04-23 | Всесоюзный Научно-Исследовательский Институт По Разработке Неразрушающих Методов И Средств Контроля Качества Материалов | Method and device for flaw detection using acoustic emission signals |
| RU2137120C1 (en) * | 1997-11-04 | 1999-09-10 | Анненков Андрей Станиславович | Method of ultrasonic inspection and gear for its realization |
| FR2840991A1 (en) * | 2002-06-17 | 2003-12-19 | Air Liquide | Ultrasonic control of weld joints combining time-of-flight diffraction and inclined longitudinal wave techniques using at least three transducers |
| US6857553B1 (en) * | 2002-04-17 | 2005-02-22 | The United States Of America As Represented By The United States Department Of Energy | Method and apparatus for in-process sensing of manufacturing quality |
-
2004
- 2004-11-05 MD MDA20040261A patent/MD2839C2/en not_active IP Right Cessation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295375A (en) * | 1979-01-08 | 1981-10-20 | Voest-Alpine Aktiengesellschaft | Ultrasonic method of testing welded joints |
| SU1469440A1 (en) * | 1980-06-24 | 1989-03-30 | Всесоюзный Научно-Исследовательский Институт По Разработке Неразрушающих Методов И Средств Контроля Качества Материалов | Method of ultrasonic tests (and its versions) |
| SU1644022A1 (en) * | 1987-02-09 | 1991-04-23 | Всесоюзный Научно-Исследовательский Институт По Разработке Неразрушающих Методов И Средств Контроля Качества Материалов | Method and device for flaw detection using acoustic emission signals |
| EP0388470A1 (en) * | 1988-08-26 | 1990-09-26 | Moskovskoe Vysshee Tekhnicheskoe Uchilische Imeni N.E.Baumana | Method of controlling acoustic contact during ultrasonic flaw detection |
| RU2137120C1 (en) * | 1997-11-04 | 1999-09-10 | Анненков Андрей Станиславович | Method of ultrasonic inspection and gear for its realization |
| US6857553B1 (en) * | 2002-04-17 | 2005-02-22 | The United States Of America As Represented By The United States Department Of Energy | Method and apparatus for in-process sensing of manufacturing quality |
| FR2840991A1 (en) * | 2002-06-17 | 2003-12-19 | Air Liquide | Ultrasonic control of weld joints combining time-of-flight diffraction and inclined longitudinal wave techniques using at least three transducers |
Also Published As
| Publication number | Publication date |
|---|---|
| MD2839B1 (en) | 2005-08-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG4A | Patent for invention issued | ||
| KA4A | Patent for invention lapsed due to non-payment of fees (with right of restoration) | ||
| MM4A | Patent for invention definitely lapsed due to non-payment of fees |